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87

CYLINDER COVER, OIL SEAL, AND BEARING SERVICE

Cylinder Cover

The following procedures, except oil seal replacement, require engine disassembly. See "Disassembly Procedure" in
this chapter.

Clean and inspect the cover, look for wear and scoring of the bearing surfaces. Measure the bearing surface diameters
using a micrometer and check the specifications for worn or damaged parts. Replace as necessary.

When reinstalling the cover, apply a drop of Loctite 242 to the cover screw threads and re-torque to the recommended
specification. Always use new oil seals and gaskets after disassembly.

47

Late production top mounted breathers use the rubber
boot and breather tube as a push in design. Mark or note
the location of the breather tube. Use a large flat blade
screwdriver to pry the boot up and lift the breather
assembly out. Be careful not to drop the breather body
out of the rubber boot when removing (diag. 47).

A new breather tube boot is recommended for
replacement to assure proper crankcase seal. Apply
engine oil to the breather tube boot and push the breather
in until the top shoulder of the boot contacts the
crankcase.

Side Mounted Breather

This type of breather mounts over the valve compartment
and uses a reed style check valve. Most horizontal shaft
engines use this style of breather. The filter element is
held in place by a small barb in the cover. To remove the
filter, insert a knife blade between the filter element and
the barb, and depress the filter element (diag. 48).

Some engine models have two gaskets installed next to
the cylinder block. If two gaskets were originally installed,
replace them using two gaskets (diag. 49).

Integral Breather

Some ECV engines are equipped with breathers that are
part of the cylinder block. Venting is accomplished through
passages drilled in the block to route the air flow to the
outside (diag. 50).

WELCH

PLUG

BAFFLE

COVER GASKET

BODY

REED

DRAIN

HOLE

BODY

FILTER

GASKET

COVER

TUBE

50

ONE WAY

DISC VALVE

IDENTIFICATION

PLATE

RETURN

HOLE

GASKET

ONE WAY

DISC VALVE

COVER PLATE

COVER

GASKET

BAFFLE

RETURN HOLE

48

49

GASKET

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Содержание ECV100

Страница 1: ...10 HMXL70 HS40 50 HSK30 70 HSSK40 50 HT30 35 HXL35 LAV30 50 LEV80 120 TNT100 120 TVM125 220 TVXL170 220 TVS75 120 TVXL105 115 V40 80 VH40 70 V60 70 VM70 100 Model numbers are located on the engine shroud 3 TO 11 HP 4 CYCLE L HEAD ENGINES T E C H N I C I A N S H A N D B O O K TECUMSEH ...

Страница 2: ...RETORS 11 SERIES 1 CARBURETORS 11 SERIES 3 4 CARBURETORS 11 DIAPHRAGM CARBURETORS 11 SERIES 6 CARBURETORS 4 CYCLE 12 SERIES 8 12 SERIES 9 12 SERIES 10 EMISSION 12 NON TECUMSEH CARBURETORS DELLORTO CARBURETOR 12 ENGINE TROUBLESHOOTING CHART 13 CARBURETION TROUBLESHOOTING CHART 14 TESTING 15 SERVICE 15 CARBURETOR PRE SETS AND ADJUSTMENTS 15 FINAL ADJUSTMENTS NON EMISSION ENGINES 16 NON ADJUSTABLE CA...

Страница 3: ...TERY 43 WIRING 43 ELECTRICAL TERMS 44 BASIC CHECKS 45 TROUBLESHOOTING ELECTRICAL STARTER CIRCUIT FLOW CHART 46 TROUBLESHOOTING ELECTRICAL CHARGING CIRCUIT FLOW CHART 47 TESTING PROCEDURE 48 STARTING CIRCUIT 48 CHARGING CIRCUIT 48 VOLTAGE REGULATIONS 56 LOW OIL SHUTDOWN SWITCHES 56 SERVICE 57 12 VOLT OR 120 VOLT ELECTRIC STARTERS WITH EXPOSED SHAFT 57 12 VOLT D C OR 120 VOLT A C ELECTRIC STARTERS W...

Страница 4: ...ELY 78 BREATHER PASSING OIL 78 EXCESSIVE OIL CONSUMPTION 78 LACKS POWER 78 SERVICE 79 DISASSEMBLY PROCEDURE 79 CYLINDERS 81 CYLINDER HEADS 82 PISTONS RINGS AND CONNECTING RODS 82 CRANKSHAFTS AND CAMSHAFTS 84 VALVES 85 CRANKCASE BREATHERS 86 CYLINDER COVER OIL SEAL AND BEARING SERVICE 87 CRANKSHAFT BEARING SERVICE 88 COUNTERBALANCE SERVICE 89 FLYWHEEL SERVICE 89 CHAPTER 10 ENGINE SPECIFICATIONS 90 ...

Страница 5: ... required engine information on the engine decal diag 3 INTERPRETATION OF MODEL NUMBER The first letter designation in a model number indicates basic type of engine V Vertical Shaft LAV Lightweight Aluminum Vertical VM Vertical Medium Frame TVM Tecumseh Vertical Medium Frame VH Vertical Heavy Duty Cast Iron TVS Tecumseh Vertical Styled TNT Toro N Tecumseh ECV Exclusive Craftsman Vertical TVXL Tecu...

Страница 6: ...hort Block Vertical Original model identification numbers of an engine should always be transferred to a new short block for correct parts identification diag 4 THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH IF NOT FOLLOWED COULD ENDANGER THE PERSONAL SAFETY OF YOURSELF AND OTHERS FOLLOW ALL INSTRUCTIONS FUEL REGULAR UNLEADED OIL SAE 30 BELOW 32o F SAE 5W30 LEV115 57010B D STP185U1G1RA...

Страница 7: ...tion the equipment so the engine is level when checking the oil CAUTION REMOVE THE SPARK PLUG WIRE BEFORE DOING ANY SERVICE WORK ON THE ENGINE Oil Change Procedure Locate the oil drain plug On some units this plug is located below the deck through the bottom of the mounting flange Other units drain at the base of the engine above the deck or frame If access to the drain plug is restricted by the e...

Страница 8: ...abilizer to allow it to reach the carburetor CAUTION THE USE OF SOME ANTI ICING ADDITIVES MAY CREATE A METHANOL FUEL BLEND DO NOT USE ADDITIVESTHAT CONTAIN METHANOL FUEL CONDITIONERSTHAT CONTAIN ISOPROPYL ALCOHOL IS RECOMMENDED Draining the Fuel System CAUTION DRAIN THE FUEL INTO AN APPROVED CONTAINER OUTDOORS AND AWAY FROM ANY OPEN FLAME OR COMBUSTION SOURCE BE SURE THE ENGINE IS COOL 1 Remove al...

Страница 9: ...ilter element The polyurethane wrap pre filter is used on XL or XL C engine models with paper filter elements The paper or polyurethane filter element is the main filter to trap dust and dirt Dry type paper elements have treated paper folded for increased surface area and rubber like sealing edges The polyurethane filter uses an oil film to trap fine particles found in dust The flocked screen is u...

Страница 10: ...the excess contaminants out of the air cleaner body before removing the old element 4 Remove the old element and the polyurethane pre cleaner if equipped 5 On air cleaners that use a flocked screen under the polyurethane element remove the air cleaner assembly from the carburetor before removing the flocked screen This prevents dirt from entering the carburetor diag 3 6 Clean the inside of the cov...

Страница 11: ...lems in an engines performance due to the fuels quality and short shelf life Always check fuel as a primary cause of engine performance 1 Remove the air filter heater box or air cleaner assembly if applicable to visually check that the choke shutter completely closes or check to see if fuel comes out of the main nozzle during priming 2 If the fuel flow from the tank is adequate and no fuel is evid...

Страница 12: ...TION 2 PRIMER BULB 4 PRIMER BULB 3 MAIN NOZZLE EMULSION TUBE MAIN JET For the fuel to flow the carburetor bowl must be either vented externally or internally Some internally vented float style carburetors use a tygon tube and a vent within the air intake This tube must be present for the carburetor to operate properly diag 2 Air is bled into the main nozzle and through the air bleed located in the...

Страница 13: ...M PRESSURE DIFFERENTIAL CARBURETORS This type of carburetor uses a rubber like diaphragm which is exposed to intake manifold pressure on one side and to atmospheric pressure on the other Tecumseh diaphragm carburetors use the diaphragm as a metering device As the intake manifold pressure decreases due to downward piston travel the atmospheric pressure on the vented side of the diaphragm moves the ...

Страница 14: ... COVERED WITH WELCH PLUG IDLE AND INTERMEDIATE FUEL MIXTURE PASSAGE IDLE ADJUSTMENT SCREW AND O RING IDLE SPEED ADJUSTMENT CHOKE SHAFT AND LEVER CHOKE PLATE ATMOSPHERIC VENT SOFT BAFFLE PLUG Blow air through passage Loosen screw until it just clears throttle lever then turn screw in one turn Removable on emission carbs non metallic only Check shaft for looseness or bind ing Shutter must be positio...

Страница 15: ...d applications that will only have a fixed main system and the idle system will not be drilled diag 12 NOTE Emissionized carburetors will have a fixed jet SERIES 3 SERIES 4 CARBURETORS Series 3 and 4 carburetors are generally used on 8 through 12 5 horsepower 4 cycle engines The venturi size of these carburetors are larger than Series 1 and Dual System Carburetors The quickest way to identify thes...

Страница 16: ...the Series 6 carburetor It has the idle discharge port located at the 7 o clock position on the throttle end of the carburetor Identify this carburetor by the stepped primer bulb the presence of a non drilled idle mixing well and a serviceable main nozzle emulsion tube diag 19 SERIES 10 EMISSION The Series 10 carburetor is identical to the Series 8 carburetor with the addition of a choke to assist...

Страница 17: ...Dry Dry Defective Spark Plug Check Fuel Supply and Fuel Cap Vent Restricted Air Filter Restriction in Fuel System filter screen Improper or Stale Fuel Carburetion Problem Sheared or Partially Sheared Poor Compression Flywheel Key Carburetion Problems Due to Flooding Over Priming etc Ignition System ...

Страница 18: ... Float Height Main Nozzle Restricted Dirty Stuck Needle and Seat Fuel Inlet Plugged Rich Idle START IDLE ACCELERATE HIGH SPEED Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Á Will Not Run at High Speed Hesitates Hard Starting Fuel Leak at Carburetor Engine Floods ...

Страница 19: ...excessive choking or over priming improperly adjusted or defective carburetor or the wrong ignition timing With the spark plug removed and a shop towel over the spark plug hole turn the engine over slowly 3 or 4 times to remove excess gasoline from the engine cylinder CAUTION KEEP ALL COMBUSTIVE SOURCES AWAY AVOID THE SPRAY FROM THE SPARK PLUG HOLEWHEN CRANKINGTHE ENGINE OVER 8 Replace the air fil...

Страница 20: ...en these two positions This will be the best setting diag 21 22 23 Set the speed control to the IDLE or SLOW position Adjust the idle mixture screw following the same procedure used to adjust the main mixture adjustment screw TECUMSEH CARBURETORS 1 turn 1 turn All models with diaphragm type carburetors All models with float type carburetors Engine Model Main Pre set Idle Pre set 1 1 2 turn 1 turn ...

Страница 21: ...te the position of the hooks before removing the float hinge pin diag 28 3 Remove the float clip and inlet needle 4 Remove the inlet needle seat using a 4 crochet hook a wire or paper clip with a 3 32 2 38 mm hook end as shown Push the hook through the hole in the center of the seat to remove it diag 29 5 Note or mark the action of the choke and throttle shutters and or the hook points of the chok...

Страница 22: ...om any Tecumseh carburetor These are pressed in at the factory to a specific depth When removing the nozzle the top O ring may not come out with the tube The O ring must be removed and placed on the nozzle before it is placed back into the center leg or it will not seal properly diag 34 The main nozzle on some Walbro carburetors are removable for service If you remove it a service nozzle with the ...

Страница 23: ...ive jaws Use a small chisel sharpened to a 1 8 3 175 mm wide wedge point Drive the chisel into the plug to pierce the metal then push down on the chisel to pry the plug out of the hole NOTE DO NOT REMOVE ANY BALL OR CUP PLUGS IMPULSE FUEL PUMP To service disassemble the pump by removing the four 4 screws Clean all parts with a solvent and install a new kit which consists of a coil spring gaskets a...

Страница 24: ...ic Fuel Bowl Retaining Nut The retaining nut contains the transfer passage or metering jet through which fuel is delivered to the high speed and idle circuit of the carburetor If a problem occurs with the RETAINER NUT SPRING O RING HIGH SPEED ADJUSTMENT SCREW BRASS WASHER used to protect the O ring from the spring 40 TW0 HOLE TYPE ONE HOLE TYPE FUEL METERING PORT FUEL INLET PORTS 41 IDLE FUEL TRAN...

Страница 25: ...e them in place NOTE NEVER REUSE OLD SCREWS Choke Shaft and Plate The choke plate is inserted into the air horn of the carburetor in such a position that the flat surface of the choke is down Choke plates will operate in either direction Make sure it is assembled properly for the engine Test the operation of the choke and return spring function if equipped diag 45 Always use a new screw s when rei...

Страница 26: ...e carburetor and remove the float bowl Place a drop of an oil based product such as WD 40 on the tip of the needle valve Using a commercially available 0 30 psi pump and gauge attach the pumps hose to the carburetor inlet Apply approximately 6 psi or until the needle pops off the seat The needle should seat at 1 5 psi or greater for a minimum of 5 minutes If the minimum 1 5 psi cannot be maintaine...

Страница 27: ...have occurred when the engine is warm This condition can be corrected by inserting a non metallic spacer in the center leg of the carburetor as shown part 632158 This spacer is designed to reduce the amount of prime charge in the main nozzle area for better starting under warm engine conditions It can only be used on Dual System carburetors and does not lean out the carburetor mixture diag 54 This...

Страница 28: ...tment screw and spring If any or all of these old parts are worn or damaged replace each part with a new service part to assure proper function and prevent engine damage Use the diagrams on the next page as a guide to facilitate the correct installation of parts diag 57 58 Fuel Fitting NOTE MOST SERVICE CARBURETORS ARE MARKED SVC CARB NF IN THE PRICE LIST THIS MEANS THAT THE CARBURETOR COMES WITH ...

Страница 29: ...OAT SHAFT FLOAT FLOAT BOWL HIGH SPEED BOWL NUT BOWL NUT WASHER DIAPHRAGM COVER SCREW CHOKE SHUTTER Throttle Lever Remove the throttle lever and spring and file off the peened end of the throttle shaft until the lever can be removed Install the throttle spring and lever on the new carburetor with the self tapping screw furnished If dust seals are furnished install them under the return spring Idle ...

Страница 30: ...d link and close the throttle opening When the engine speed decreases the lower centrifugal force allows the governor weights to be pulled in by the governor spring As the spool lowers the governor rod rotates and the solid link pushes the throttle to a more open position diag 1 GOVERNOR SHAFT RETAINING RING 1 SPRING WEIGHTS THROTTLE GOVERNOR GEAR GOVERNOR SPOOL TROUBLESHOOTING Engine problems whe...

Страница 31: ...ical If the R P M setting for high and low speed are within specification and a slight surge is experienced increasing the engine idle R P M setting slightly may eliminate this condition 4 Check the governor shaft or linkages for binding wear or improper hookup Check the governor spring for adequate tension Repair or replace as necessary Ú 7 SERVICE GOVERNOR ADJUSTMENT With the engine stopped loos...

Страница 32: ...spool seats The governor weights must be in position under the spool after installation diag 9 Governor Gear or Shaft Replacement Upset Style Governor Shaft 1 Grip the original spool in a vise and use a twisting and pulling motion on the flange until the spool is free 2 Clamp the shaft in a vise and pound gently on the flange with a wooden or plastic mallet to remove the shaft NOTE DO NOTTWIST THE...

Страница 33: ...ne speed Move the speed control lever to the low speed position place the adjustment tool on the low speed tab and bend to either increase or decrease to the correct speed 12 LOOSEN TO ADJUST WIRE HOLE CONTROL LEVER LOW SPEED TAB HIGH SPEED TAB HIGH SPEED PIN POSITION Þ DECREASE INCREASE Þ 13 SPEED CONTROLS AND LINKAGE Many different types of speed controls and linkage are used for O E M applicati...

Страница 34: ...turn the crack screw to 600 RPM below the governed idle speed This setting prevents the throttle plate from closing off when going from high speed RPM to low speed RPM If improperly adjusted the engine could experience an over lean condition The idle speed is adjusted by turning the idle speed screw clockwise to increase engine R P M and counter clockwise to decrease R P M Use tool part 670326 to ...

Страница 35: ... SPEED CRACK SCREW IDLE SPEED CRACK SCREW IDLE SPEED CRACK SCREW HIGH SPEED RPM ADJUSTMENT SCREW HIGH SPEED RPM ADJUSTMENT SCREW 17 LIGHTWEIGHT R V TYPE IDLE SPEED CRACK SCREW HIGH SPEED RPM ADJUSTMENT SCREW HIGH SPEED RPM ADJUSTMENT SCREW HIGH SPEED RPM ADJUSTMENT SCREW IDLE SPEED CRACK SCREW IDLE MIXTURE SCREW MAIN MIXTURE SCREW ...

Страница 36: ...T ENGINES CONTINUED IDLE SPEED CRACK SCREW HIGH SPEED RPM ADUSTMENT SCREW IDLE SPEED CRACK SCREW MAIN MIXTURE SCREW BEND LOOP OPEN OR CLOSED TO ATTAIN OPERATING RPM S 25 MAIN MIXTURE SCREW IDLE MIXTURE SCREW IDLE SPEED SCREW HMSK80 100 HORIZONTAL MEDIUM FRAME 21 IDLE SPEED CRACK SCREW HIGH SPEED RPM ADJUSTMENT SCREW IDLE MIXTURE SCREW ...

Страница 37: ...20 WITH HORIZONTAL SPEED CONTROL 30 29 TVS 115 ENGINE WITH SNAP IN SPEED CONTROL IDLE MIXTURE SCREW IDLE SPEED CRACK SCREW TNT 100 VERTICAL ENGINES 28 27 VERTICAL SHAFT ENGINES HIGH SPEED ADJUSTMENT SCREW IDLE SPEED CRACK SCREW BEND Ó TO INCREASE SPEED BEND Ô TO DECREASE SPEED 26 ...

Страница 38: ...DLE With the engine throttle set at its lowest speed set the governed idle at the designated RPM by bending the idle RPM tab or adjusting a screw Next set the non governed idle by pushing the bottom of the governor lever away from the control brackets so the throttle lever contacts the idle speed screw Hold the lever in this position and turn the idle adjustment screw clockwise to increase or coun...

Страница 39: ...r dog spring s returns the starter dog s to the disengaged position The recoil spring turns the starter pulley in the opposite direction retracting the starter rope until the handle contacts the stop COMPONENTS SERVICE Starter related problems will require the starter to be removed from the engine to diagnose the cause Visually inspect the starter dog s starter cup retainer springs rope washers an...

Страница 40: ...ed knot on the rope end Make sure the rope and knot do not protrude from the knot cavity and bind the pulley rotation RETAINER REPLACEMENT DIAGRAM 4 1 Remove the starter handle if the retainer is a complete circle design Remove the staple and old retainer 2 Slide the rope retainer into the proper position and insert the staple using a pliers 3 Install the starter handle and tie a left hand knot to...

Страница 41: ...op of the starter NOTE DO NOT DRIVE THE CENTER PIN IN TOO FAR The retainer will bend and the starter dogs will not engage the starter cup On the stamped steel starter the center pin should be driven in until it contacts the shoulder in the starter body 4 Wind the starter pulley counterclockwise four or five turns to pre load the recoil spring thread the rope through the starter housing eyelet and ...

Страница 42: ...ip 8 Wind the starter pulley counterclockwise four or five turns to pre load the recoil spring and thread the rope through the starter housing eyelet Pull enough rope through to tie a temporary knot in the rope Reattach the starter handle to the rope using a left hand knot Untie the temporary knot and allow the rope to recoil STANDARD STAMPED STEEL AND CAST ALUMINUM STARTER HM VM Disassembly Proce...

Страница 43: ...d knot should be tied on the end of the rope to secure the handle 7 If a centering pin is used be sure to align with the crankshaft bottom pin in center screw hole Install nylon sleeve 1 8 3 175 mm onto pin Position nylon sleeve in aligning recess in the crankshaft START two mounting screws in blower housing 90o apart With sleeve centered in crankshaft gently push the starter in place tighten the ...

Страница 44: ...n on the spring 8 Mount the starter on the engine making sure the top of the starter gear teeth are no closer than 1 16 1 59 mm from the top of the flywheel ring gear teeth VERTICAL PULL STARTER VERTICAL ENGAGEMENT TYPE Disassembly Procedure 1 Pull out enough rope to lock the rope in the V of the bracket 2 Remove the handle if necessary by prying out the small staple in the handle with a screwdriv...

Страница 45: ...rt the pin in the strut diag 19 6 If the starter is equipped with a locking or delay pawl and spring make sure these are in place before grasping the gear and spring capsule assembly and sliding it into the bracket Make sure the legs of the brake spring are positioned in the slots of the bracket 7 Feed the rope end under the rope guide and hook it into the V notch Remove the pin and the strut will...

Страница 46: ...CTRIC STARTERS After all of the safety interlock switches have been activated the starter switch will complete the circuit A strong magnetic force is produced by the electrical current running through the armature windings The armature magnetism repels the magnetism produced by the permanent field magnets of the electric starter The repelling magnetic forces cause the armature to rotate moving the...

Страница 47: ...randed with an insulated coating around the copper strands CONDITION All wiring must be fully insulated between connection points securely fastened and free of foreign material such as rust and corrosion at the connection points This is especially important in the use of batteries where much of the potential may be lost due to loose connections or corrosion Remember to check the insulation on the ...

Страница 48: ...ire wound around a metal lamination stack When a magnet is moved past the coils a current is induced in the coils In general the greater the number of coils the greater the output of the alternator diag 7 IGNITION COIL The ignition coil is used to fire the spark plug It is completely independent from the alternator coils RECTIFIERS and DIODES Charging a battery requires that the alternating curren...

Страница 49: ...ions 3 Cracked insulation or broken wires 4 A wire grounding out in the system 5 Defective switch 6 Operator presence system functioning properly NOTE ALL LAWN AND GARDEN TRACTORS BUILT AFTER JULY OF 1987 ARE REQUIRED TO HAVE AN OPERATOR PRESENCE SYSTEM AND MANY CAME EQUIPPED WITH SUCH A SYSTEM PRIOR TO THIS DATE IF THE TRACTOR IS CUTTING OUT OR WILL NOT START THIS IS AN AREA THAT SHOULD BE CHECKE...

Страница 50: ...gine failure repair or replace engine NO YES Isolate engine from the equipment does engine turn over Repair or replace equipment causing excessive loading Remove spark plug does engine turn over freely YES NO Internal engine failure or flywheel interference Reinstall spark plug does engine bind on compression stroke YES NO Check valve lash Adjust if necessary Does the engine turn over without bind...

Страница 51: ...nsult the Technician s Handbook or Electrical Troubleshooting booklet for test procedure for the charging system used Test for either AC or DC voltage as directed at the proper engine RPM Is the voltage greater than or equal to the minimum value Alternator coil failure replace coil assy NO NO YES YES Check wiring switches or ammeter for breaks shorts Is AC voltage before diode or rectifier greater...

Страница 52: ...the engine will require disassembly to find the mechanical failure See Chapter 9 under Disassembly Procedure CHARGING CIRCUIT The following pages will show wiring diagrams of several Tecumseh charging systems The charging system used on the engine is best identified by obtaining the engine model number and the specification number on the engine Consult a Tecumseh dealer or a parts manual to identi...

Страница 53: ...h each terminal in the plug Start the engine and test the circuit using a voltmeter as shown diag 13 With the engine running minimum A C voltage values across the bulb should be 2000 R P M 8 0 Volts A C 3000 R P M 10 5 Volts A C 3600 R P M 12 0 Volts A C If minimum values are noted the alternator is okay If the minimum values are not noted the alternator or A C connector is defective See Chapter 9...

Страница 54: ...If output is below standard listed pull back protective coating in front of the diode and check A C output If A C is good check each diode it services as requested see parts list diag 15 D C value or check A C outputs both sides R P M D C Volts R P M Volts A C 2500 8 0 Volts D C 2500 18 Volts A C 3000 9 5 Volts D C 3000 22 Volts A C 3300 10 5 Volts D C 3600 26 Volts A C 3600 11 5 Volts D C NOTE Th...

Страница 55: ...ge meter probe on battery terminal as shown in the diagram diag 18 Connect negative lead to engine ground Minimum values should read 2500 R P M 12 0 Volts D C 3000 R P M 14 0 Volts D C 3300 R P M 16 0 Volts D C 3600 R P M 18 0 Volts D C If these minimum readings are noted the system is okay Check for bad battery ammeter wiring etc If less than above reading proceed to make an A C output check With...

Страница 56: ...for bad battery ammeter wiring etc If less than the above readings proceed to make an A C output check by pulling back the protective coating from the fuse holder and diode Using an A C voltmeter check voltage from a point between the engine and the diode as shown in the diagram diag 21 With the engine running minimum values should read 2500 R P M 18 0 Volts A C 3000 R P M 22 0 Volts A C 3300 R P ...

Страница 57: ...s A C 3000 R P M 23 0 Volts A C 3300 R P M 26 0 Volts A C 3600 R P M 28 0 Volts A C If the minimum values are noted the alternator is okay the regulator rectifier is defective If less than above readings the alternator is defective See Chapter 9 for Disassembly Procedure 3 Amp D C 5 Amp A C Alternator Models H HSK 50 60 HH50 60 HM HMSK 70 80 90 100 TVM125 140 170 195 220 TVXL195 220 DIODE 24 D C Y...

Страница 58: ...oltage is experienced replace the alternator If the alternator puts out the minimum A C voltage replace the diode 7 Amp Alternator System Regulator Rectifier External to Engine CHECKING THE SYSTEM To check the system disconnect the D C or B wire at the switch end and measure D C voltage between the lead and ground diag 26 With the engine running minimum values should read 2500 R P M 9 0 Volts D C ...

Страница 59: ...from lead to lead should be 2500 R P M 16 0 Volts A C 3000 R P M 19 0 Volts A C 3300 R P M 21 0 Volts A C 3600 R P M 23 0 Volts A C If the minimum readings are noted the alternator is okay If the system fails to charge a known good battery the regulator rectifier must be defective 10 Amp Alternator System Regulator Rectifier External to Engine In this system the regulator and rectifier are combine...

Страница 60: ...and the regulator can be checked using a voltmeter Set the voltmeter on the 0 20 Volt D C scale and connect the probes across the battery terminals as shown Note the battery voltage Start the engine the voltage reading should increase from the noted battery voltage but not exceed 15 Volts D C If no voltage increase is noted proceed to make an A C voltage check using the applicable procedure If the...

Страница 61: ...ousing to aid in reassembly 5 Remove the two or four retaining nuts from the through bolts holding the cap assembly 6 Slide off the cap assembly The terminal insulator slides out of the commutator cap 7 Remove the armature 8 Inspect and replace as necessary 9 Use the reverse procedure for reassembly 10 Inspect flywheel ring gear for damage before installation 12 VOLT D C OR 120 VOLT A C ELECTRIC S...

Страница 62: ...r 3 Grasp the thru bolts using a vise grip positioned as close to the flanged end as possible to prevent thread damage Remove the two nuts holding the driving end cap in place Remove the armature and driving cap assembly followed by the two thru bolts Notice the position of the brush ground eyelet under the thru bolt flange 4 Note or mark the position of the connectors of the brush wires Use a wir...

Страница 63: ... lets go of the engine blade control bail at the operator position and the engine is stopped Tecumseh s Flywheel Brake system provides consumer safety by stopping the engine and blade within three seconds after the operator releases the engine blade control bail at the handle of the lawnmower These systems are available on both recoil and electric start models The engine stopping time is affected ...

Страница 64: ...a plastic block with a wire extending out of it The wire is attached to a terminal which is connected to the ignition kill wire The brake lever contacts and grounds the wire of the switch when the engine blade control is released and the ignition module is grounded This in turn kills the ignition diag 5 The interlock switch is a push button switch that is activated by the brake lever when the engi...

Страница 65: ... system in the reverse order of disassembly NOTE WHEN REMOVING THE BRAKE BRACKET THE TORSION SPRING MUST BE RELEASED BEFORETHE TOP STARTER BOLT IS REMOVED OR THE THREADS IN THE CYLINDER BLOCK WILL BE DAMAGED Inside Edge To relieve the brake pressure on the flywheel compress the spring by moving the lever toward the spark plug when the hole in the lever aligns with the hole in the bracket secure th...

Страница 66: ...CONTROL CABLE Bottom Surface The control cable conduit must be assembled against the stop in the bracket Make sure the bottom of the lever completely depresses the button on the starter interlock switch if equipped when the control is fully applied The cable must provide enough travel so the brake will contact the flywheel Some slack should exist in the cable adjustment to compensate for brake pad...

Страница 67: ...flywheel rotate past the charge coil electrical energy is produced in the module The energy is stored in the capacitor approx 200 volts until it is released by an electrical switch SCR As the magnet continues to rotate it travels past a trigger coil where a low voltage signal is produced This low voltage signal closes the SCR switch allowing the energy stored in the capacitor to flow to a transfor...

Страница 68: ...he low voltage in the primary to high voltage in the secondary capable of jumping the spark plug gap The coil consists of a primary and a secondary winding of wire The primary is the low voltage 200 300 volts winding consisting of approximately 150 turns of heavy gauge wire next to the core The secondary winding consists of approximately 10 000 turns of very fine wire wrapped over the primary When...

Страница 69: ...ests on the ignition cam The contact points are a replaceable item diag 12 The ignition cam is an oblong device which rotates with the crankshaft and opens the points for firing the ignition system It is important to check the ignition cam for roughness if rough replace the cam When inserting the ignition cam onto the crankshaft make sure that the side stamped TOP or the side that has an arrow on ...

Страница 70: ...rols Parasitic load Engine problem check for shorts or grounds in wiring Disconnect ignition cut off wire at the ignition coil repeat test Oil shutdown or on off rocker switch Check for proper air gap on external coil and repeat test Check flywheel magnets for strength Test ignition module Spark Replace spark plug Isolate engine and repeat test No Spark Spark Engine runs erratically or shuts off r...

Страница 71: ...for roughness B Check the movable point arm that rests on the ignition cam for wear C Check the spring steel on the point assembly for evidence of excessive heat D Check contact points for wear If they are pitted or burned this is an indication that the condenser is not functioning properly If any of the above are faulty replace accordingly E When replacing the points also replace the condenser F ...

Страница 72: ... high or breather is restricted 9 Faulty piston rings 10 Weak ignition system IGNITION TIMING PROCEDURE In order for an engine to run effectively and efficiently the spark must ignite the compressed air fuel mixture when the piston is in a specific position to deliver maximum power This position is known as Before Top Dead Center BTDC If the mixture is ignited too soon kickback can be experienced ...

Страница 73: ... Find T D C with both valves closed by rotating the crankshaft clockwise when looking at the magneto end of the crank until the needle on the dial stops and reverses direction Where the needle stops is T D C Loosen the screw on the dial and rotate the dial so that zero is lined up with the needle at T D C Tighten the screw on the dial to secure it in place diag 23 While watching the needle on the ...

Страница 74: ...vable point and then recheck the point gap Be sure to clean contact points with lint free paper diag 27 NOTE The flywheel key used on engines with an external coil and points looks similar to the solid state key however timing will be effected if the wrong key is used Reinstall the proper flywheel key flywheel washer and torque down the flywheel nut to specification Reinstall the external coil and...

Страница 75: ...am wiper in a magneto system Use a standard business card as an air gap gauge File the contact points Attempt to reglue the spark plug lead back into a coil or a solid state module Store a solid state module within 20 feet 6 1 meters of an unshielded welder PLEASE DO Follow directions carefully Lookup the correct ignition dimensions in the proper mechanic s manual or quick reference chart for the ...

Страница 76: ...tween power strokes The camshaft gear is twice as large as the mating gear on the crankshaft so as to allow proper engine valve timing for each cycle The crankshaft makes two revolutions for every camshaft revolution 1 INTAKE The intake valve is open and the exhaust valve is closed The piston is traveling downward creating a low pressure area drawing the air fuel mixture from the carburetor into t...

Страница 77: ...and crankshaft bearing to lubricate the piston connecting rod and other internal parts diag 7 The plunger style oil pump is located on an eccentric on the camshaft As the camshaft rotates the eccentric moves the barrel back and forth on the plunger forcing oil through the hole in the center of the camshaft The ball on the end of the plunger is anchored in a recess in the cylinder cover diag 8 BARR...

Страница 78: ...ankshaft The valves allow air fuel mixture to enter the cylinder and exhaust gases to exit The valves provide a positive seal when closed The valve springs return the valves to the closed position and must be strong enough to maintain valve lifter and cam lobe contact The valve retainers lock the spring to the valve stem The valve lifters maintain contact on the camshaft and push the valves open T...

Страница 79: ...ug or Ignition timing Loose or worn connecting rod Worn cylinder SURGES OR RUNS UNEVENLY Fuel cap vent obstructed Dirty carburetor or air filter Carburetor improperly adjusted Governor sticking binding or improper RPM setting Carburetor linkage shafts or shutters sticking or binding Incorrect spark plug or Intermittent spark check ignition EXCESSIVE OIL CONSUMPTION Oil level above full Wrong visco...

Страница 80: ... setting Damaged gaskets seals or O rings Breather damaged dirty or improperly installed Piston rings not properly seated or ring end gaps are aligned Angle of operation too severe ENGINE VIBRATES EXCESSIVELY Bent crankshaft Attached equipment out of balance Loose mounting bolts If applicable counter balance not properly aligned LACKS POWER Air intake obstructed Lack of lubrication or improper lub...

Страница 81: ...tachometer and compare it to the R P M settings found on microfiche card 30 according to the engine model and specification number Adjust as necessary 6 Make sure the correct spark plug is being used Check the ignition timing See Chapter 8 Ignition Service Correct flywheel key or partially sheared key 7 Remove the cylinder head to check for excessive carbon buildup Clean as necessary SURGES OR RUN...

Страница 82: ... gasket or leaking valves Follow the compression tester s procedure EXCESSIVE OIL CONSUMPTION 1 Check the oil level oil viscosity on the container of the oil being used and oil condition Replace and fill to the proper level 2 Check the angle of operation Avoid prolonged use at a severe angle 3 Check for leaking or damaged gaskets seals or O rings External leaks may not be evident however the leak ...

Страница 83: ...oil then pull the cover away from the spark plug to remove diag 11 5 Remove the blower housing by first unscrewing the screw holding the dipstick tube to the blower housing or unscrewing the dipstick tube and removing the remaining bolts on the blower housing 6 Unplug the ignition kill wire from the terminal on top of the ignition module and unbolt the ignition module 7 Remove the flywheel nut was...

Страница 84: ... engines equipped with 8 1 2 1 gear reduction turn the crankshaft to roll the reduction shaft gear off the crankshaft worm gear when removing the cylinder cover diag 15 16 17 18 WORM GEAR 15 17 16 18 BEVELED TOOTH CAMSHAFT GEAR CRANKSHAFT GEAR 15 Remove the lifters rod cap and balance shaft or gears if applicable 16 Before removing the piston remove any carbon from the top of the cylinder bore to ...

Страница 85: ...der wall and begin honing at the bottom of the cylinder A light honing oil should be used to lubricate and cool while honing Move the hone up and down at a rate of 50 strokes per minute to avoid putting ridges in the cylinder wall Every fourth or fifth stroke move the hone far enough to extend STAGGER RING END GAPS AWAY FROM TRENCHING 22 GAPS GAPS TRENCHING INDICATES 010 OVERSIZE CYLINDER 23 the s...

Страница 86: ...crometer Check the ring side clearance using a feeler gauge with new ring Clean all carbon from the piston top and the ring grooves before measuring Visually inspect the piston skirt area for scoring or scratches from dirt ingestion If scoring or deep scratches are evident replace the piston If the cylinder bore needs re sizing an oversize piston will be necessary Oversize pistons are identified b...

Страница 87: ...ed correctly The piston used on these models will have either an arrow stamped above the piston pin hole a number cast on the inside of the piston skirt or an arrow stamped on the top of the piston diag 32 33 All other engine models use a centered piston pin If the piston does not have an arrow or number cast inside the piston can be installed in either direction on the connecting rod On all engin...

Страница 88: ...e operating freely and smoothly on mechanical compression relief types Camshafts used in rotary mower engines utilize a composite gear glass filled nylon for the purpose of reducing internal gear noise Mechanical Compression Release MCR camshafts have a pin located in the camshaft that extends over the exhaust cam lobe to lift the valve and relieve the engine compression for easier cranking When t...

Страница 89: ...or X are installed in the exhaust valve location Valves marked I are installed in the intake valve location If the valves are unmarked the nonmagnetic valve head is installed in the exhaust valve location To reinstall the valves position the valve caps and springs in the valve compartment If the spring has dampening coils the valve spring should be installed with the dampening coils away from the ...

Страница 90: ...EMENT TUBE BOTTOM NARROWING SEAT 150 600 BOTTOM NARROWING CUTTER SEAT TOP NARROWING CUTTER 460 310 460 TOP NARROW 3 64 1 191 mm SEAT SEAT CUTTER BOTTOM NARROW 310 Valve Lifters The valve lifters on some engines are different lengths The shorter lifter is installed in the intake position and the longer lifter is installed in the exhaust position When removing mark the lifters to install the lifter ...

Страница 91: ...ot is recommended for replacement to assure proper crankcase seal Apply engine oil to the breather tube boot and push the breather in until the top shoulder of the boot contacts the crankcase Side Mounted Breather This type of breather mounts over the valve compartment and uses a reed style check valve Most horizontal shaft engines use this style of breather The filter element is held in place by ...

Страница 92: ...ector will insure that the seal is driven in to the proper depth diag 52 CRANKSHAFT BEARING SERVICE Ball Bearing Service H40 HM100 engines To remove the ball bearing from the cylinder cover the bearing locks will have to be rotated out of the way First loosen the locking nuts with a socket Turn the retainer bolts counterclockwise to the unlocked position with a needle nose pliers diag 53 The flat ...

Страница 93: ...fans that are replaceable A damaged fan can be replaced by tapping on the outside portion of the fan until it separates from the iron portion of the flywheel diag 58 A new fan may be installed by heating the polypropylene fan in a pan of boiling water Suspend the fan off the bottom of the pan while heating Using adequate protection install the hot fan to the flywheel Make sure the fan locators fit...

Страница 94: ...S The engine specifications listed on the following pages include tolerances that are considered acceptable to achieve normal engine operation Observed values inside the listed tolerance range are satisfactory and require no adjustments ...

Страница 95: ...1 9 1 X X s t l o B d o R n n o C 0 1 2 5 7 1 4 2 X X X X r o r e v o C l y C e g n a l F 5 1 1 5 9 3 1 X X X X X X X X X X X r o r e v o C l y C e g n a l F k o l r e w o P 5 2 1 5 0 1 4 1 X X X X t u N l e e h w y l F m u n i m u l A 0 5 4 5 7 3 1 5 X X X X X X X t u N l e e h w y l F 5 7 4 0 4 4 5 X X X X X X t u N l e e h w y l F 0 3 6 5 2 5 1 7 X t x E t u N l e e h w y l F n g I 0 0 7 8 5 9 ...

Страница 96: ... u o M w e r c S r e d l u o h S 0 2 2 5 2 X X X X X g n i t n u o M r e l f f u M e k a c n a P 5 7 3 3 4 X g n i t n u o M r e l f f u M s b a T k c o L 5 2 7 6 8 X X X X g n i t n u o M r e l f f u M L T H 5 7 8 5 7 0 1 X g t M r e l f f u M 0 2 1 0 1 3 1 X X X X X X g t M r e l f f u M d e g n a l F 0 8 5 6 9 X X X X X X X X g t M r e l f f u M t l o B r e d l u o h S 0 1 1 9 5 2 1 X r o t a t...

Страница 97: ...8 8 1 2 g a M t f a h s k n a r C a i D g r B n i a M 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 O T P t f a h s k n a r C a i D g r B n i a M 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 8 9 9 0 9 ...

Страница 98: ...g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 0 9 9 9 5 9 9 9 5 7 3 5 2 7 8 3 5 2 O T P t f a h s k n a r C a i D g r B n i a M 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 ...

Страница 99: ... t f a h s k n a r C a i D g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 O T P t f a h s k n a r C a i D g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2...

Страница 100: ...k n a r C a i D g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 O T P t f a h s k n a r C a i D g r B n i a M 0 7 8 1 1 5 7 8 1 1 0 5 1 0 3 3 6 1 0 3 0 7 8 1 1 5 7 8 1 1 0 5 1 0 3 3 6 1 0 3 0 7 8 1 1 5 7 8 1 1 0 5 1 0 3 3 6 1 0 3 0 7 8 1 1 5 7 8 1 1 0 5 ...

Страница 101: ... 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 O T P t f a h s k n a r C a i D g r B n i a M 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 g n i r a e B t f a h s m a C 5 7 9 4 0 8 9 4...

Страница 102: ...g a M t f a h s k n a r C a i D g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 O T P t f a h s k n a r C a i D g r B n i a M 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 ...

Страница 103: ...k n a r C a i D g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 O T P t f a h s k n a r C a i D g r B n i a M 5 3 7 8 0 4 7 8 7 8 1 2 2 0 0 2 2 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 g n i r a e B t f a h s m a C 5 7 9 ...

Страница 104: ... 9 4 3 g a M t f a h s k n a r C a i D g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 4 7 3 1 0 5 7 3 1 2 1 9 4 3 5 2 9 4 3 5 4 7 3 1 0 5 7 3 1 2 1 9 4 3 5 2 9 4 3 O T P t f a h s k n a r C a i D g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 0 7 8 1 1 5 7 8 1 1 0 5 1 0 3 3 6 1 0 3 5...

Страница 105: ... 3 0 4 7 3 1 5 4 7 3 1 0 0 9 4 3 2 1 9 4 3 g a M t f a h s k n a r C a i D g r B n i a M 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 4 7 3 1 0 5 7 3 1 2 1 9 4 3 5 2 9 4 3 5 8 9 9 0 9 9 9 2 6 3 5 2 5 7 3 5 2 5 4 7 3 1 0 5 7 3 1 2 1 9 4 3 5 2 9 4 3 O T P t f a h s k n a r C a i D g r B n i a M 0 7 8 1 1 5 7 8 1 1 0 5 1 0 3 3 6 1 0 3 5 4 7 3 1 0 5 7 3 1 2 1 9 4 3 5 2 9 4 3 0 7 8 1 1 5 7 8 1 1 0 5 1 0 3 3 6...

Страница 106: ...900 series transaxles This video will show a complete step by step procedure for teardown and reassembly of the 900 910 and 920 series transaxles CHAPTER 11 EDUCATIONAL MATERIALS AND TOOLS 695185 Electrical Troubleshooting This video training program will assist the small engine technician in the proper procedures for troubleshooting electrical systems on outdoor power equipment 695285 An in depth...

Страница 107: ...agneto w dia of 749 750 Standard ignition lightweight engines 670308 PTO Magneto on HM70 100 TVM170 220 OVM120 TVXL195 220 HMSK100 w shaft dia of 1 3745 1 3750 670309 PTO Magneto on HM70 100 TVM170 220 OVM120 TVXL195 220 HMSK100 w shaft dia of 1 3745 1 3750 670310 PTO Magneto on HM70 100 TVM170 220 OVM120 TVXL195 220 HMSK100 w shaft dia of 1 3745 1 3750 670263 Oil seal on extended camshaft medium ...

Страница 108: ...ver A NONE B 670311 Bushing Driver 1 3 8 41 275 mm HM70 100 TVM170 220 and OVM120 670317 Bushing Driver 1 3 16 20 6375 mm HM70 HM80 and HM100 Cylinder cover No 670298 Alignment Tool 1 32 794 mm OVERSIZEVALVE GUIDE REAMER No 670283 Used on small frame 4 cycle engines on Intake and Exhaust valve guides Oversize diameter 2807 2817 No 670284 Used on medium and large frame 4 cycle engines on Intake and...

Страница 109: ...4 375 3 8 391 25 64 406 13 32 422 27 64 438 7 16 453 29 64 469 15 32 484 31 64 50 1 2 DECIMAL FRACTION CONVERSIONS 516 33 64 531 17 32 547 35 64 563 9 16 578 37 64 594 19 32 609 39 64 625 5 8 641 41 64 656 21 32 672 43 64 688 11 16 703 45 64 719 23 32 734 47 64 75 3 4 766 49 64 781 25 32 797 51 64 813 13 16 828 53 64 844 27 32 859 55 64 875 7 8 891 57 64 906 29 32 922 59 64 938 15 16 953 61 64 969...

Страница 110: ...7K 143 224282 LAV35 40678K 143 224292 ECV100 145030A 143 224302 ECV100 145031A 143 224312 LAV35 40463K 143 224322 LAV35 40442K 143 224332 LAV35 40687K 143 224342 LAV35 40688K 143 224352 ECV100 145032A 143 224362 ECV100 145033A 143 224372 LAV35 40689K 143 224382 LAV35 40063K 143 224392 LAV35 40139K 143 224402 LAV35 40699K 143 224412 LAV35 40649K 143 224422 LAV35 40058K 143 224432 ECV100 145034A 143...

Страница 111: ...AV35 40821K 143 254062 ECV100 145069A 143 254072 LAV35 40811K 143 254082 LAV35 40812K 143 254092 LAV35 40813K 143 254102 LAV35 40814K 143 254112 LAV35 40815K 143 254122 LAV35 40816K 143 254142 ECV100 145062A 143 254152 ECV100 145063A 143 254162 ECV100 145064A 143 254172 ECV100 145065A 143 254182 ECV100 145066A 143 254192 ECV100 145067A 143 254202 ECV100 145068A 143 254212 LAV35 40829K 143 254222 L...

Страница 112: ...74222 ECV100 145118A 143 274232 ECV100 145118B 143 274242 ECV100 145098B 143 274252 LAV35 40751L 143 274262 ECV100 145109B 143 274272 LAV35 40948L 143 274282 LAV35 40949L 143 274292 LAV35 40950L 143 274302 LAV35 40951L 143 274312 LAV35 40952L 143 274322 LAV35 40953L 143 274332 LAV35 40954L 143 274342 ECV100 145119B 143 274352 LAV35 40955L 143 274362 ECV100 145120B 143 274372 LAV35 40956L 143 27438...

Страница 113: ...M80 150121E 143 286192 VM100 157024A 143 286202 VM80 150122E 143 286212 VM100 157025A 143 286222 V70 125246C 143 286232 VM100 157026A 143 286242 VM100 157027A 143 286252 V70 125247C 143 286262 VM100 157028A 143 286272 VM100 157029A 143 286282 V70 125248C 143 286292 VM100 157030A 143 286312 VM80 150063E 143 286322 V70 125250C 143 286332 V70 125251C 143 286342 V60 70357J 143 286352 VM80 150114E 143 ...

Страница 114: ...2E 143 314432 LAV35 40917N 143 314442 ECV100 145183E 143 314452 ECV100 145177E 143 314462 ECV100 145176E 143 314472 ECV100 145181E 143 314482 TVS90 43150B 143 314502 ECV100 145190E 143 314512 ECV100 145191E 143 314522 ECV100 145192E 143 314532 LAV35 41003N 143 314542 TVS90 43066B 143 314552 TVS90 43088B 143 314562 TVS90 43116B 143 314572 TVS90 43067B 143 314582 ECV100 145168E 143 314592 ECV100 145...

Страница 115: ...5242F 143 344382 ECV100 145243F 143 344392 ECV100 145244F 143 344402 TVXL105 54020B 143 344412 TVXL105 54021B 143 344422 TVS90 43268D 143 344432 TVS90 43269D 143 344442 TVS105 53059D 143 344452 ECV100 145245F 143 344462 TVS105 53067D 143 344472 ECV100 145246F 143 345012 ECV120 152031C 143 345022 ECV120 152030C 143 345032 TVS120 63211A 143 345042 LAV50 62082E 143 345052 ECV120 152032C 143 345062 EC...

Страница 116: ...220 157083H 143 381012 TVS75 33061F 143 381022 TVS75 33059F 143 384012 TVS90 43379F 143 384022 TVS90 43380F 143 384032 TVS90 43381F 143 384042 TVS90 43382F 143 384052 TVS90 43383F 143 384062 TVS90 43384F 143 384072 TVS90 43385F 143 384082 TVS90 43386F 143 384092 ECV100 145313G 143 384102 ECV100 145314G 143 384112 ECV100 145315G 143 384122 ECV100 145316G 143 384172 ECV100 145317G 143 384202 ECV100 ...

Страница 117: ...15G 143 414442 TVS105 53132H 143 414452 TVS105 53152H 143 414462 TVS105 53137H 143 414472 TVS120 63117G 143 414482 TVS105 53139H 143 414492 TVS120 63120G 143 414502 TVS90 43534G 143 414512 TVS90 43535G 143 414522 TVS90 43901G 143 414532 TVS90 43533G 143 414542 TVS105 53907H 143 414552 TVS120 63906G 143 414562 TVS105 53170H 143 414572 TVS120 63902G 143 414582 TVS105 53910H 143 414592 TVS105 53912H ...

Страница 118: ...43 621032 H30 35276H 143 621042 H25 25203H 143 621052 H30 35275H 143 621062 H30 35100J 143 621082 H25 25207H 143 621092 H25 25208H 143 625012 H50 65341J 143 625022 H50 65336J 143 625032 H50 65337J 143 625042 H50 65163K 143 625052 H50 65323K 143 625072 H50 65059K 143 625082 H50 65329K 143 625092 H50 65031K 143 625102 H50 65263K 143 625112 H50 65275K 143 625122 H50 65208K 143 625132 H50 65361J 143 6...

Страница 119: ...2D 143 676032 H70 130219C 143 676042 HM80 155145D 143 676052 HM80 155146D 143 676062 HM100 159014A 143 676072 HM100 159015A 143 676082 HM100 159016A 143 676092 HM100 159017A 143 676102 H70 130221C 143 676112 H60 75452K 143 676112 H60 75452K 143 676122 H70 130211D 143 676132 H60 75403M 143 676142 HM80 155151D 143 676152 HM100 159019A 143 676162 HM100 159020A 143 676172 H70 130172D 143 676182 HM80 1...

Страница 120: ...3 741022 H30 35333P 143 741032 H30 35337P 143 741042 H30 35342P 143 741052 H30 35350P 143 741062 H30 35351P 143 741072 H30 35354P 143 741082 H30 35362P 143 741092 H30 35363P 143 742032 HM80 155256F 143 742042 H50 65479N 143 742052 H50 65480N 143 744092 HS50 67238E 143 744102 HS40 55546H 143 744112 HS50 67247E 143 746012 H60 75489M 143 746022 HM80 155250F 143 746062 H70 130256J 143 746072 HM100 159...

Страница 121: ... 143 941005 HM100 159262K 143 941006 TVXL220 157206D 143 941007 HM100 159135L 143 941008 TVXL220 157220D 143 941009 HM100 159262L 143 943001 H30 35426V 143 943003 H30 35431V 143 943005 H30 35450V 143 943009 H30 35453V 143 943009 H30 35453V 143 943502 TVS90 43515K 143 943504 TVS90 43513K 143 943506 TVS90 43215K 143 943508 TVS90 43572K 143 943508 TVS90 43572K 143 943510 TVS90 43298K 143 943512 TVS90...

Страница 122: ...051C 143 965012 TVS115 61026C 143 965014 TVS115 61037C 143 965016 LEV115 350004A 143 965018 LEV115 350006A 143 965020 TVS115 61027C 143 965022 TVS115 61056C 143 965024 LEV115 350015B 143 965502 TVS120 63920M 143 965504 TVS115 62901A 143 965506 LEV115 355002A 143 965508 TVS115 62902A 143 966001 H60 75469V 143 966003 H60 75539V 143 966004 TVS120 63929M 143 966005 H60 75554V 143 966010 TVS120 63930M ...

Страница 123: ...143 985000 LEV115 350060C 143 985002 LEV115 350073C 143 985003 HSSK50 67338S 143 985004 LEV115 350070C 143 985006 LEV115 350071C 143 985007 HSSK50 67374S 143 985008 LEV115 350072C 143 985010 TVS115 61085E 143 985012 LEV115 350090C 143 985014 TVS115 61083E 143 985500 LEV115 355008C 143 985502 LEV115 355007C 143 985504 TVS115 62116C 143 985506 TVS115 62117C 143 985508 TVS115 62118C 143 985510 LEV115...

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