Westerbeke 38B FOUR Service Manual Download Page 36

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Summary of Contents for 38B FOUR

Page 1: ...W 27 W 33A R08D W 27A MARINE DIESEL GENERATORS WMD 11 0 60Hz WMD 8 3 50Hz 11 0 BTO WMD 12 5 60Hz 12 5 BTDA WMD 9 4 50Hz 9 4 BTDA 12 5 BTD 8 3 BTD 9 4 BTD PUBLICATION NO 43440 2nd Edition April 1998 W...

Page 2: ...s Carbon Monoxide is poisonous and can cause unconsciousness and death Symptoms ofCarbon Monoxide exposure can include Dizziness Nausea Headache Weakness andSleepiness Throbbing in Temples Muscular Tw...

Page 3: ...ar the carburetor fuel line filter fuel pump or other potential sources of spilled fuel or fuel vapors Use a suitable container to catch all fuel when removing the fuel line carburetor or fuel filters...

Page 4: ...t with your skin wash it off at once with water Acid may splash on the skin or into the eyes inadvertently when removing electrolyte caps TOXIC EXHAUST GASES A WARNING Carbon monoxide CO is adeadly ga...

Page 5: ...ngs are repeated in your Operators Manual along with other cautions and notes to highlight critical information Read your manual carefully maintain your equipment and follow all safety procedures ENGI...

Page 6: ...Engines Generators...

Page 7: ...embly 39 Fuel Filter 39 Fuel Lift Pump 39 Fuel Injection Pump 39 Valve Seat 18 Injector 40 Valve 19 Inspection 40 Valve Spring 19 Rocker Arm and Rocker Shaft 19 Fuel Filter 40 Fuel Lift Pump 40 Reasse...

Page 8: ...System 58 Description 58 Engine 12 Volt Control Circuit 58 Charging System 58 Alternator Troubleshooting 58 Checking for roper Voltage 58 Battery Maintenance 59 WMD Generator AC Internal Wiring Diagr...

Page 9: ...ELS ENGINES GENERATORS ENGINES GENERATORS ENGINES GENERATORS 60Hz 50Hz 60Hz 50Hz 60Hz 50Hz 388 Four 11 0 BTD 8 3 BTD W 33 WMO 12 5 WMD9 4 42B Four 12 5 BTDA 9 4 BTDA W27 WMD11 0 WMD8 3 W 33A 12 5 BTD...

Page 10: ...hen using this service manual SPECIFICATION MODEL________ RPM __________ KW_____ ______ KVA ___________ VOLTS _ __ __ AMPS ____ ENG HP_ ____ ENG SER NO GEN SER NO PFIPHASE ____ WIRES_________ RATING _...

Page 11: ...ion Nozzle Throttle type Governor Centrifugal flyweight type Fuel Diesel 2 cetane rating 45 or higher lubrication Forced lubrication trochoid pump Oil Filter Paper element filter full flow type 5 lite...

Page 12: ...block 3 Disconnect the fuel solenoid from the throttle arm gen erator models only 4 Place the stop lever in the OFF position propulsion mod els only 5 Install a pressure gauge adapter in the first in...

Page 13: ...gaskets packings and oil seals even if not specified to check Replace with new ones if defec tive 4 Be sure to install in proper directions and positions Pay attention to dowel pins mating marks and...

Page 14: ...e length Installed load length Squareness ROCKER ARM Arm to shaft clearance CYLINDER BLOCK Camshaft hole 1 0 Front bushing Cylinder bore Cylinder bore oversize finish tolerance Taper of cylinder A A A...

Page 15: ...ARDS REPAIR or MODELS STANDARD VALUE replacement REPLACEMENT Required at Required at A 73 B C 78 A B C 0 07 0 08 178 0 3 BIO A B C 0 25 0 50 0 75 A C Semi floating type B Full floating type A C 19 B 2...

Page 16: ...0 5 to 20 C A B C SAE20 or 10W 30 below 5 C A B C SAE 10W 30 OIL PUMP Trochoid type A B C Check valve opening pressure A B C 4 0 4 kg cm2 at 500 rpm of pump speed Outer rotor to body clearance A B C 0...

Page 17: ...OW PLUG A B C 1 5 2 GENERAL SCREWS BOLT DlA BOLT HEAD MARK 4 7 10 M6 0 3 0 5 0 8 1 0 1 0 1 3 M8 1 0 1 3 1 5 2 2 2 5 3 5 M10 1 8 2 5 3 0 4 2 5 0 7 0 M12 3 0 4 2 5 5 7 5 9 5 12 0 M14 5 0 7 0 8 0 11 0 16...

Page 18: ...zle 5 Injection pump delivering insufficient fuel 5 Repair or replace injection pump 6 Injection too early 6 Adjust injection timing MAIN ENGINE TROUBLES 1 Low compression a Incorrect valve clearance...

Page 19: ...ng 3 Replace ring 4 Worn piston or cylinder 4 Replace piston and rebore cylinder OIL LEVEL FALLING 1 Defective stem seal 1 Replace stem seal 2 Worn valve and valve guide 2 Replace avalve and valve gui...

Page 20: ...ROD AND CONNECTING ROD BEARING 1 Worn connecting rod big end bearing 1 Replace bearing 2 Worn crankpin 2 Grind crankshaft 3 Bent connecting rod 3 Correct bend or replace PISTON PISTON PIN AND PISTON R...

Page 21: ...n is not in mesh with control rack b Correct c Broken delivery valve spring c Replace d Worn delivery valve seat d Replace 3 Improper nozzle a Poor spray a Clean or replace nozzle b Poor chattering b...

Page 22: ...E EXHAUST VALVE CBANKSHAFT GEAR INTAKE SILENCER NOZZLE HOLDER CYLINDER HEAO INJECTION PU P PUMP CAMSH FT CYLINDER HEAl TAPPET CAMSHAFT REAR OIL SEAL FLYWHEEL OIL SCREEN SIDE VIEW EXHAUST MANIFOLD PIST...

Page 23: ...of the spring dur ing assembly The spring retainer and retainer lock are com mon to intake and exhaust valves The valve stem seal at the top of the valve guide prevents downward seepage of oil into t...

Page 24: ...spring seats INSPECTION Cylinder Head NOTE See SERVICE STANDARDS for tolerances and mea surements 1 Before cleaning the cylinder head check it for cracks damage and water leaks 2 Hot tank the cylinder...

Page 25: ...VE Valve Spring 1 Check the valve springs for cracks and damage 2 Measure the free length and load of each spring Replace the spring if excessively deteriorated CHECKING INSTALLED LENGTH OF VALVE SPRI...

Page 26: ...7 Install the glow plug lead wires The glow plugs are a taper sealed type they do not require gaskets Installation of Cylinder Head Assembly 1 Install the cylinder head assembly with a new gasket The...

Page 27: ...as to obtain the best contact with the cylinder bore The piston crown surface has a cavity to improve fuel combustion The piston pins are hollow carbonized forgings When con necting a piston to its r...

Page 28: ...VALVE OPENS B D C VALVE TIMING Intake valve opens BTDC 18 Exhaust valve closes ATDC 18 Intake valve closes ABDC 46 Exhaust valve opens BBDC 46 The tappet andpush rod The tubular type tappets are chilI...

Page 29: ...mbly upward out of the cylinder block Keep Hie removed parts in order for each cylinder When pushing out the piston and connecting rod assembly put a wooden block against the cap mating surface of the...

Page 30: ...ton 2 Measure the piston O D Replace the piston if exces sively worn If the piston to cylinder clearance is exces sively large machine the cylinder to an oversize bore or replace the piston The piston...

Page 31: ...5 PIN R2 5 3 Check the crankshaft end play If the specified limit is exceeded replace the flanged No 3 main bearing To check the end play install the ma n bearings crankshaft and main bearing caps the...

Page 32: ...Bearings Check each ball bearing for excessive wear or damage and for irregular or noisy rotation If there is any replace the bearing Tappets 1 Check the bottom of each tappet for cracks flaking and...

Page 33: ...Press fit to a height of 30 0 5 1 1811 0 0197 from the cylinder block surface When installing the former type of guide which is increased in diameter at the midpoint press it in until caught in the h...

Page 34: ...90 Make certain the small end of the connect ing rod rests properly on the tool body Also confirm that the front mark on the piston head and identifica tion mark on the connecting rod face up d Press...

Page 35: ...e crankshaft Install the gear on the shaft 1 GEA MATING MARKS 18 Align the mating mark 1 on the idler gear with that on the crankshaft gear install the idler gear on the idler shaft Insert the camshaf...

Page 36: ...T AND PUSH ROD 26 Install the cylinder head assembly see CYLINDER HEAD SERVICE REASSEMBLY 27 Install the injection pump assembly see Installation and Adjustment ofFuel Injection Pump under FUEL SYSTEM...

Page 37: ...move the crankshaft pulley nut and remove the pulley 3 Remove the fuel injection pump see Fuel Injection Pump under FUEL SYSTEM 4 Remove the gear case mounting bolts and remove the gear case see CA UT...

Page 38: ...ntact the fuel rack and move it fully into the shutoff position on the injection pump Do not thread the solenoid further into the boss so that the plunger against the fuel rack is pushed into the sole...

Page 39: ...cylinder No 1 rotate the front crankshaft pulley clockwise 1800 so the IDC mark on the pulley is positioned approximately in the position shown in the illustration for cylinder No 3 Now adjust the in...

Page 40: ...m 60 hertz models 1850 1880 61 5 62 0 hertz 50 hertz models 1550 1580 51 5 52 0 hertz NOTE Any adjustment ofthe throttle on a generator is done only with the linkage between the fuel solenoid and the...

Page 41: ...larly The oil filter should be replaced after the initial 50 hours of opera tion and thereafter every 100 hours of operation The trochoid gear type oilpump is mounted on the back of the fuel injection...

Page 42: ...close the oil hole with sealant 4 Apply liquid teflon sealant to the threaded portion of the oil pressure sender Take care not to close off the oil hole into the sender Thread the sender into its fitt...

Page 43: ...linder block It consists of the pump elements plunger assemblies delivery valves tappets and smoke set unit As the pump camshaft rotates the plungers are moved up and down through a fixed stroke thus...

Page 44: ...ry turning of the plunger barrels required for inter cylinder injection control is attained by turning the respective adjusting plates This adjustment is performed on a fuel shop flow bench only ADJUS...

Page 45: ...lable Before disassembly close the fuel inlet and outlet and clean the pump s outside surfaces Keep disassem bledparts immersed in clean kerosene andkeep all parts neatly arranged in order to avoid co...

Page 46: ...el line as illustrated Fuel delivery must be 225 cc 5 pints or more every 15 seconds TESTING THE FUEL LIFT PUMP Fuel Injection Pump 1 Delivery valve seat Check the contact surface of the delivery valv...

Page 47: ...nd insert the tappet guide pin Install the lock plate before inserting the tappet guide pin and bend the lock plate after inserting the pin INST LLlNG TAPPET 9 Install the smoke set stopper return spr...

Page 48: ...o tighten the nut be sure to hold the bodyside If the retaining nut was held a defonned nozzle would result Adjustment and Installation of Nozzle Holder Assembly 1 Injection Start Pressure Test Using...

Page 49: ...quickly at a rate of 800 strokes per minute The nozzle should inject a fine atomozed mist of fuel straight in its axial direction A spray in the form of particles is cause for rejection 5 Install the...

Page 50: ...he fresh water sys tem and the raw water system The heat exchanger is a cop per tube which encloses a number of small copper tubes Raw water is pumped through the small copper tubes and fresh water co...

Page 51: ...rom the bearing side NOTE The seals flat surfaces that have printing and numbers face toward each other COVER 2 Install the shaft into the bearings Support the bearings at their center races Push the...

Page 52: ...e bushing in a freezer for 1 hour to reduce it s size Prepare the pump housing on a press to accept the bushing 2 Apply some light oil to the housing boss that the bushing will be pressed into Using a...

Page 53: ...ected by heat Voltage from the water temperature gauge is grounded through the sender to the block Depending on the resistance through the sender effected by coolant heat the gauge will indicate a tem...

Page 54: ...amage Then put it in water and raise the water temperature to test its valve open ing temperature Replace if defective A CAUTION The waxpellet type thermostat remains closed if its heat sensing part i...

Page 55: ...oJ the water temperature gauge will continue to register the last temperature reading indicated by the gauge before electrical power was turned off The oil pressure gauge will faJl to zero when the k...

Page 56: ...n ALARM THE ALARM WILL SOUND IF THE ENGINE S OIL PRESSURE FAUS BELOW 15 PSI IN THIS EVENT THE ALARM WILL EMIT A PULSATING SIGNAL THE ALARM WILL ALSO SOUND IF THE WATER TEMPERATURE IN THE FRESHWATER CO...

Page 57: ...running 1 Voltage present attempt adjusting the meter through the calibration access hole If no results repair or replace the meter 2 AC voltage not present check for proper alternator DC output volta...

Page 58: ...2V are present at the regulator terminal BATIERY RUNS DOWN 1 Oil pressure switch 1 Observe if the gauges and panel lights are activated when the engine is not running Test the oil pressure switch 2 Hi...

Page 59: ...en an PROPULSION ENGINE overheat condition ex ists and the operating temperature of the engine reaches 205 F and sounds the alarm The tachometer will register the engine speed as it takes impulses fro...

Page 60: ...rcuit are identical to conventional ones B M STARTER WIRING ADJUSTMENT AND REPAIR If any abnormality is found by the following tests the starter should be disassembled and repaired Pinion Gap Inspecti...

Page 61: ...ring out and remove the washer 6 Unscrew the bolts and remove the center bracket At the same time the washers for the pinion shaft end play adjustment will come off PINION SHAFT 3 Holding test With a...

Page 62: ...CK 2 Measure the commutator 0 0 and the depth of undercut Repair or replace it if the service limit is exceeded Also check the commutator outside surface for dirtiness and roughness If rough polish th...

Page 63: ...he folJowing 1 Pinibn shaft end play adjustment Set the end play thrust gap to between 0 5 to 2 mm by inserting an adjusting washer between the center bracket and the reduction gear a Fit the pinion s...

Page 64: ...oid or a ballery selector switch is usually mounted in the circuit to isolate the balleries so the starling battery is not discharged along with the house batteries Ifthe isolator is charging the star...

Page 65: ...tarting battery and become red hot when activated The glow plugs are wired through the preheat solenoid When PREHEAT is pressed at the control panel this solenoid should click on and the glow plug sho...

Page 66: ...a quick charger be sure to disconnect the battery tenninals to prevent damage to diodes NOTE The alternator connections and color coding described on the following illustrations may vary from earlier...

Page 67: ...all readings are at j 3 5 liolts OUTPUT TEST SETUP DISASSEMBLY 1 After removing the three assembly through bolts insert a screwdriver between the front bracket and stator While prying it remove the f...

Page 68: ...is easy to unsolder the stator winding leads from the rectifier quickly to avoid heat damage to the diodes and I C chips It is also easier to renew the brushes because there is no need to bend the co...

Page 69: ...ust be measured with a micrometer Replace the rings rotor assembly when wear reaches the replacement value Standard Replacement Value Required at Slip Ring 0 0 33mm 32 2 mm Runout 0 03 mm or less 0 2m...

Page 70: ...charging current S The Ie regulator is of the temperature compensation type and therefore regulated voltage varies with temperature It is necessary to measure the temperature of the rear bracket surro...

Page 71: ...marine manufacturers such as HURTH ZF BORG WARNER PARAGON and others If you require transmission parts repair work or an overhaul we recom mend contacting the transmission manufacturer directly for i...

Page 72: ...p ue s W40 N l Ir f Al S_ t iY SW PAil ce 13 N l7 1 S AII E7Y SW WA fINlie I A rs INSr f U e rs It OIWPLET S lS 11532 uPPIPE IO It lr Al 1 I 17 2 i5e1 T t Klr Ie 4 84 Al rt A AlATOte 5 A I S 23 157 SE...

Page 73: ...ROLA Iza MP IIZ3 I LecCE IoJEVlI U 5 3 P Ti JiJ5 1 4EC I NEVII U lOS AMP IGt 14 0 I ADD nONA PR I Ssu f E SWlrCH s eo I D TO srAer aAr ACCI sSOJ g s A t l l XI81 e HOSE Musr BE RUN I J OM nlE OIL P t...

Page 74: ...I 2 Z NEUrlf AI S lJ tI i r S W 1 1 21 234 NEVi l SIII ETYoSW W RNEe I 20 PANEl LUS INSrll t NENTS I I J PANEl CO PLsrs 18 j 1532 SVPPA l SS OAl 1II 1r ALI I 17 l e lS IACAI Xli Al rER ArOJ Ie 4 84 A...

Page 75: ...lIVG DIA R VfS OT OROLA 8 l AM 1 2 3 2 1 4070 01 120 Mp 1Ii 3 I LE C NII V U 3 AM S L Ce NliVlU e lOS AMP II 14 Ip ADDITIONAl 1 E lM SWlrCNES III RI t i D 0 oS rARi 80AT ACCE 1S0R II S p LEXI8J 1 HOSE...

Page 76: ...j I OIl F RESSURE SENDER PTION w TI1 5T U NT P4HElI fQl I U i l SOl ENOID w I USED SONE MODELS I PUMP PI pzl I I i t OS I t r l ARM i 0 START T H t j tO KE V5WITCH F REHEAT SWITCH e 3 if ill i 2 Ie C...

Page 77: ...OR LAMP GOES OUT RELEASE THE PREHEAT SWITCH TURN THE KEY TO TH E OFF POSITION I THIS PRODUCT IS PROTECTED BY A MANUAL RESET CIRCUIT BREAKER LOCATED NEAR THE STARTER EXCESSIVE CURRENT DRAIN WILL CAUSE...

Page 78: ...C ELECTRICAL SYSTEM ENGINE WIRING DIAGRAM 36844 WATER TEMP SENOER VOl TMETER 2 SZ 1 2 t ilII wATER TEMp SWITCH z I I I I I I I I I I I 0111 0 I OIL PRESSURE SENOER 0 ill FUEl SOLENOlO 14 LT ElI U w 0...

Page 79: ...SIVE CURRENT DRAIN WILL CAuSE THE SREAKER TO TRIP ANO THE ENGINE WILL SHUT DOWN THE BUILOEI I OWNEr I MUST BE SURE THAT THE INSTRUMENT PANEL WIJ UNG AND ENGINE ARE INSTALL ED TO PREVENT OONTACT BETWEE...

Page 80: ...STALLED BETWEEN THE BAITERY AND STARTER TO DIS CONNECT THE BAT TERY IN AN EMER GENCY AND WHEN LEAVING THE BOAT ASWITCH WITH A CONTINUOUS RATING OF 175 AMPS AT 12 voe WILL SERVE THIS FUNCTION THIS SWI...

Page 81: ...E s AND sEA UEJ z AM OIl OFF S ITCH IIOULD I IJSTAlUD IIETWEEII TilE hTT lltY AIID nUTU TO DISCOMNECT TilE eATTERY III All II II6 11CT AIID HEII LEAVIIIG THE IIOAT A SWITCH 11TH A COIiTlIIUOUS IIATI1I...

Page 82: ...13mm bolt head nut 1 5 32 5 50 6 4 5 7 0 13mm bolt head nut 1 5 57 9 86 8 8 0 12 0 14mm bolt head nut 1 5 36 2 57 9 5 0 8 0 14mm bolt head nut 1 5 72 3 108 5 10 0 15 0 14mm bolt head nut 2 34 0 55 7...

Page 83: ...168 2 1 82880 7 6 40080 2 2 18723 7 7 65529 3 2 74320 8 7 31520 3 3 28084 8 8 74891 4 3 65760 9 8 22960 4 4 37445 9 9 84252 5 4 57200 10 9 14400 5 5 46807 10 10 93614 MOVE DECIMAL POINT FOR HIGHER VAL...

Page 84: ...it supplies GENERATOR FREQUENGY ADJUSTMENT Frequency is a direct result of engine generator speed as indicated by the following D When the generator is run at 1800 rpm the AC voltage output frequency...

Page 85: ...ace components in the brush rig as needed Do not totally disassemble as this is not n eeded 4 Remove the control panel from the top of the generator housing Mark all leads as needed for proper assembl...

Page 86: ...hould be 50 to 70 volts AC If 50 to 70 volts AC is produced this should indicate that the gener ator is OK and that the bridge rectifier is defective 5 If no voltage is produced check the static capac...

Page 87: ...re good and secure and positioned away from rotating parts To ensure the field coils have been positioned properly in the generator housing and will have the correct polarity the following test must b...

Page 88: ...dbell increases above 104 F Generators in confined areas may require the ducting of cool outside air into the compartment directed toward the inlet at the generator endbell 6 Check the condition of th...

Page 89: ...23Ov ioro j Armature 60 HERTZ 4 WIRE RECONNECTABLE AC AC Field Excitation Rectifier 50 HERTZ 2 WIRE RECONNECTABLE J 220 Volts I Armature Engines Generators 83 AC AC Field Excitation Rectifier Field E...

Page 90: ...fier The rectifier produces a DC voltage to further excite the exciter stator windings enabling the generator to produce a rated AC output as the generator speed reaches its set hertz rpm An optional...

Page 91: ...TOP I I e U 1 67 I I J I I I L ___ I I L l I I WI ICB I IZOAMP L I J I I I PANEL lVDC BATTERY to BATTERY RETURN PRE HEAT S OL I I I ____ _ 1 I I PRE H T I I 1 I I r I I START I t L_ 1 I t t 0 1 I L EE...

Page 92: ...c tifier The rectifier produces a DC voltage to further excite the exciter stator windings enabling the generator to produce a rated AC output as the generator speed reaches its set hertz rpm An optio...

Page 93: ...than an equipment fault Bring basic repair parts with you on the initial trip to the problem equipment such as a regulator board when installed diodes and a bridge rectifier so that if the problem sh...

Page 94: ...exciter B 2 shorted 1 Check B 1 and B 2 in the rotating exciter as explained in load is applied voltage drops this manual 2 Bridge rectifier defective 2 Follow test procedure for the bridge rectifier...

Page 95: ...omponents that can produce this same no voltage output are the pozi resistor in the exciter rotor and 4 or more failed diodes in the exciter rotor a Apply 12 volt DC excitation to the exciter stator w...

Page 96: ...n the rectifier 4 Touch point 5 with the lead No deflection of the needle should occur 5 Place the lead of the meter on point 1 and the on point 3 No deflection of the needle should occur infi nite re...

Page 97: ...5 5 8 A I I as l II 4 i 1 11111 8 6 7 2 _ b 2 1 2 3 I I GREEN F I YElLOW i BLACK A Windings 1 2 Resistance readings for exciter windings A I and A 2 with the selector switch in the COMP position are t...

Page 98: ...y this DC voltage to the rotating field windings Resistance value 11 ohms through the diode Infinite blocking 11 ohms _ t I I l nfin ta The diodes can be easily checked in place with the use of a comm...

Page 99: ...terminal stud below the transformer and lead 7 lifted off the AC terminal block 2 Group 2 Resistance value is measured between the lift ed lead 1 from the red insulated terminal stud below the transfo...

Page 100: ...d the transformer core Varying shim thickness by 001 inch 0 025 mm will change the no load voltage by 4 6 volts Adding shim thickness will raise voltage lessening shim thickness will lower voltage VOL...

Page 101: ...at the changed hertz setting In the event it needs adjustment adjust the shim thickness under the laminated steel bar of the trans former 60 hertz no load voltage 121 124 volts 50 hertz no load volta...

Page 102: ...on two red terminals below the compound transformer N t J 7 04 L1 110V 50 Hz 6 5 8 4 4 II 220V 50 Hz 6 5 4 4 8 N f j Ll 120V 60 Hz 6 5 4 s 1 1 N 4 l2 240V GO Hz 8 6 TERMINAL BLOCK winding connections...

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Page 104: ...I SEE iNOTE 3 I I r I I L_ DC ELECTRICAL SYSTEM BT GENERATOR WIRING DIAGRAM 34651 I I BATTERY RETURN 1 GNO TO BLOCK REMOTE CONTROL PANEL oPTIONAL i I I rr II I TB4 IJ r I i t tU I LED I L ___ __ _ _...

Page 105: ...l RqTH FROI1 THfi STANDflRb START SWITcH To fiN REMors SWITCHeS liNt BAC To Til Sf NC A C ST iRTER S IrCIf IF THIS RE U RE JNPRIlCTICIILLY LARGe CONDUCTORS iI eN A RelA M4Y Bt qOPeO To CONTROl Tlfe S1...

Page 106: ...EL RED 114 TAN tl4 BLU tl4 aRN 4 PUR WIlT z o CIL PRESSURI o wmB TURE z GROUND TO ENG I HE BLOCK II REMOVE TH IS JUMPER WHEN CONNECT I NG A REMOTE PAIIEL 10 ltD 4 Y l 10 ItD NT WATER TEMP o VOLT METER...

Page 107: ...SCHEMATIC 36412 PREHEAT SOLENOID r I L ___ I START SWITCH 11 PREHEAT SWITCH STARTER SOLENOID r I L ___ I STARTER I I 10 AMP I CIRCUIT BREAKER GLOWPLUGS ALTERNATOR B FUEL PUMP I SWITCH I FUEL SOLENOID...

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