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Ignition Coil Gap Adjustment

High Voltage Ignition Systems can be Dangerous

- Use Caution when Servicing Ignition Systems

1. Install the ignition coil and lightly tighten the igniting coil mounting bolts.

2. Rotate engine so ignition coil is aligned with the magnet portion of the flywheel.

3. Insert the feeler gauge between the flywheel and coil.

4. Adjust the ignition coil gap at both side of the coil.

5. Sufficiently tighten the mounting bolts.

Ignition Coil Resistance Inspection

Primary Coil

Place Ohm meter leads between the harness connection

lead and the exposed metal coil leg.

Secondary Coil

Place Ohm meter leads between exposed metal coil leg

and the spark plug terminal connection.

Ignition Coil Gap

0.011-

0.019”

(.3-.5 mm)

A -

Primary Coil Resistance

1.0-1.6

B -

Secondary Coil Resistance

10.5 KΩ +/- 15%

Содержание LC175FDS

Страница 1: ...TWO STAGE SNOW ENGINE SERVICE MANUAL LC175FDS 265cc LC180FDS 302cc RESIDENTIAL PRODUCTS...

Страница 2: ...ontents lists the systems and the related topics covered in this manual An electronic version of this service manual is available on the Toro Dealer Portal We are hopeful that you will find this manua...

Страница 3: ...Chapter 1 General Service Information 1 Chapter 2 Engine Service Maintenance 2 Chapter 3 Engine Disassembly and Service 3 Chapter 4 Electrical 4...

Страница 4: ...1 NOTES...

Страница 5: ...formation Safety 2 Service Rules 3 Engine Model Serial Number Location 3 Engine Fastener Torque Specification 4 General Specifications 5 Engine Specifications 265cc 175FDS 6 Engine Specifications 302c...

Страница 6: ...ng Avoid Fires and Explosions Avoid spilling fuel and never smoke while working with any type of fuel or lubricant Wipe up any spilled fuel or oil immediately Never remove the fuel cap or add fuel whe...

Страница 7: ...Only use genuine Toro parts and lubrication products 2 Always install new gaskets O rings and seals when assembling engine 3 Always torque fasteners to specification and in sequence 4 Always lubricate...

Страница 8: ...Nm Exhaust Pipe Nuts M8 22 ft lbs 30 Nm Air Cleaner Nuts M6 7 5 ft lbs 10 Nm Oil Drain Plug M10 17 ft lbs 23 Nm Oil Drain Tube M12 22 ft lbs 30 Nm Fuel Shut off Knob Screws M4 18 in lbs 2 Nm Switch bo...

Страница 9: ...Dry Weight 66 1 lbs 30Kg 70 5 lbs 32Kg Engine Idle RPM 1700 2000 RPM Engine Operating RPM 3200 3400 RPM Oil Capacity 30 32 oz 0 89 0 95 l Fuel Type Unleaded Gasoline 87 Octane Fuel Capacity 1 05 Gallo...

Страница 10: ...e Clearance 0 0039 0 0275 0 1 0 7 mm 0 0394 1 0 mm Crankshaft Crankpin Outside Diameter 1 2979 1 2984 32 966 32 981 mm 1 296 32 92 mm Valves Clearance cold intake 0 0059 0 15 mm Clearance cold exhaust...

Страница 11: ...Side Clearance 0 0039 0 0275 0 1 0 7 mm 0 0394 1 0 mm Crankshaft Crankpin Outside Diameter 1 2979 1 2984 32 966 32 981 mm 1 296 32 92 mm Valves Clearance cold intake 0 0059 0 15 mm Clearance cold exh...

Страница 12: ...l Spark Plug Incorrect Gap Fouled Loose or Faulty Air Intake Restriction Air Intake System Leaks Ignition Coil to Flywheel Gap Incorrect Weak No Spark Choke Linkage Operating RPM Incorrect Governor Ad...

Страница 13: ...ngine Service Maintenance Engine Oil Change Procedure 10 Spark Plug Service 11 Valve Clearance Inspection and Adjustment 12 Engine Governor Zero Point Setting 13 Engine Idle Speed 14 Fuel Filter Repla...

Страница 14: ...A in position Install the oil drain plug B torque to 17 ft lbs 23 Nm 8 Add oil through the dipstick tube Wipe the dipstick clean and fully insert it into the dipstick tube 9 Remove the dipstick and c...

Страница 15: ...oroughly clean the spark plug area 2 Remove the spark plug from the engine 3 Inspect the spark plug for excessively worn electrodes chips or cracks in the insulator or excessive deposits 4 Measure the...

Страница 16: ...the valve stem with a feeler gauge Intake 0 0059 0 15 mm Exhaust 0 0078 0 20 mm 4 To adjust valve clearance Hold the rocker arm pivot and loosen the pivot lock nut Turn the rocker arm pivot to obtain...

Страница 17: ...is position with a pair of pliers 5 Tighten the governor arm pinch bolt and nut to Specification 7 5 ft lbs 10 Nm 6 Start and warm engine 7 Run Engine at MAX RPM Adjust throttle limit screw until MAX...

Страница 18: ...t to warm to normal operating temperature 2 With the engine at low idle just before the kill switch is activated adjust the throttle stop screw to achieve the recommended engine idle speed Recommended...

Страница 19: ...contains no fuel to prevent leak when the fuel filter is replaced 2 Release the fuel filter fuel hose clamps A and slide them away from the fittings 3 Remove the fuel filter hose asm from the engine...

Страница 20: ...16 NOTES...

Страница 21: ...r Head Exploded View and Service Information 27 Cylinder Head Valves Exploded View and Service Information 28 Valve Spring Cylinder Head Specifications 29 Valve Stem and Guide Specifications 30 Valve...

Страница 22: ...18 Engine Service Upper End Heater Box Exploded View Gasket Heater Box Cover Heater Box Insert Primer Bulb Carburetor Mounting Nuts 7 ft lbs 10 Nm Ignition Switch and Key...

Страница 23: ...e throttle return spring from throttle shaft Pull Carburetor outward Align governor rod with notch in throttle shaft Remove governor rod and remove carburetor Throttle Shaft Throttle Return spring Gov...

Страница 24: ...20 Carburetor Exploded View Gasket Gasket Gasket Float Pin Needle Asm Float Main Jet and Nozzle Primer Asm Primer Hose Choke Lever Asm Jet O ring Throttle Stop Screw 7 ft lbs 10 Nm Float Bowl...

Страница 25: ...k Engine Cover Rear Panel Exploded View Fuel Tank Mounting Hardware 7 ft lbs 10 Nm Fuel Tank Mounting Hardware 7 ft lbs 10 Nm Rear Panel 7 ft lbs 10 Nm 19 ft lbs 26 Nm Clip Fuel Tank Cover Fuel Tank D...

Страница 26: ...uel Hose Exploded View Fuel Tank Mounting Bracket 19 ft lbs 26 Nm Starter Switch Bracket 7 ft lbs 10 Nm Fuel Filter Fuel Hose Fuel Hose and Sleeve Fuel Shut Off Valve 7 ft lbs 10 Nm Front Panel 18 in...

Страница 27: ...23 Muffler Heat Shield Exploded View Muffler Shield 19 ft lbs 26 Nm Muffler Protector Muffler 7 ft lbs 10 Nm 22 ft lbs 30 Nm Exhaust Pipe Gasket 7 ft lbs 10 Nm 3...

Страница 28: ...Throttle Control Asm Exploded View 7 ft lbs 10 Nm Pinch Bolt Governor Arm Governor Rod Throttle Return Spring Governor Arm Governor Spring Engine Kill Switch 7 ft lbs 10 Nm Throttle Limit Screw Throt...

Страница 29: ...25 Recoil Asm Exploded View Upper Heat Shroud 7 ft lbs 10 Nm Shroud and Recoil Asm 7 ft lbs 10 Nm 7 ft lbs 10 Nm Set Screw Guide Clip Spring Recoil Asm Ratchet Spring Reel Rope 3...

Страница 30: ...26 Starter Flywheel Coil Exploded View Starter Asm 12 in lbs 1 5 Nm Flywheel 80 ft lbs 109 Nm 7 ft lbs 10 Nm Ignition Coil Asm Stator 7 ft lbs 10 Nm Rubber Grommet Fan Cup...

Страница 31: ...sket Breather Tube Spark Plug 22 ft lbs 30 Nm Gasket 7 ft lbs 10 Nm Shroud Cylinder Head Bolt Torque Sequence 1 Initially Torque the 4 Cylinder Head Bolts in a Crisscross Pattern to 10 ft lbs 14 Nm 2...

Страница 32: ...ploded View and Service Information Exhaust Valve Intake Valve Push Rod Guide Plate Studs 23 ft lbs 31 Nm Rocker Arm Pivot Pivot Lock Nut 11 ft lbs 15 Nm Valve Keeper Valve Keeper Rotator Retainer Val...

Страница 33: ...er damage Standard Service Limit 0 03149 0 0393 0 8 1 0 mm 0 0591 1 5 mm Cylinder Head Warp Inspection Remove carbon deposits from the combustion chamber Clean off any gasket material from the cylinde...

Страница 34: ...alve Guide Inspection Ream the exhaust valve guide to remove any carbon deposits before measuring Valve Guide ID Specification Standard Service Limit 0 2598 0 2604 6 60 6 615 mm 0 2624 6 66 mm Valve S...

Страница 35: ...material to produce a smooth and concentric seat Follow the valve seat cutter manufacture s instructions Turn the cutter clockwise never counterclockwise Continue to turn the cutter as you lift it fro...

Страница 36: ...mation Bearing Seal Crankcase Cover Governor Gasket Valve Tappets Camshaft Triangular Mark to Face Down Piston Asm Rod Cap Crankshaft Governor Drive Gear Seal 14 ft lbs 19Nm 17 ft lbs 23 Nm 17 ft lbs...

Страница 37: ...33 Governor Exploded View Crankcase Shaft Washer Clip Governor Gear Pin Weight Slider Pin Washer Governor Shaft 3...

Страница 38: ...ton Arrow Top Ring Gap Second Ring Gap Oil Rings Stagger Scraper Rings 150 210 from the Oil Ring Install Piston Ring with Markings UP Triangular Mark to Face DOWN Towards Push Rods Oil Splash Spoon Co...

Страница 39: ...35 Crankshaft Camshaft Timing 3 Timing Marks Crankshaft Camshaft...

Страница 40: ...3 0 7085 17 992 17 998 mm 0 7067 17 95 mm Cylinder Inside Diameter Inspect cylinder inside diameter for taper and out of round with a bore gauge Measure in two different directions front to back and s...

Страница 41: ...8 79 97 79 98 mm 3 1437 79 85 mm Piston to Cylinder Clearance Specification Engine Standard Service Limit 175FDS 1 180FDS 1 0 00059 0 002 0 015 0 052 mm 0 0047 0 12 mm Piston Ring to Groove Clearance...

Страница 42: ...DS 1 180FDS 1 0 0079 0 0275 0 2 0 7 mm 0 0394 1 0 mm Use the piston to position the rings squarely 1 down from the top of the cylinder Connecting Rod Small End ID Engine Standard Service Limit 175FDS...

Страница 43: ...175FDS 1 180FDS 1 0 0039 0 0275 0 1 0 7 mm 0 0394 1 0 mm Connecting Rod Big End Oil Clearance Clean oil from the crankshaft and connecting rod Use plastic gauge style measuring tool in accordance to...

Страница 44: ...mm 1 2342 31 35 mm 180FDS 1 1 246 1 253 31 66 31 82 mm 1 232 31 30 mm Camshaft Journal Outside Diameter Engine Standard Service Limit 175FDS 1 180FDS 1 0 6285 0 6292 15 966 15 984 mm 0 6267 15 92 mm...

Страница 45: ...41 Chapter 4 Electrical System Information Ignition Coil Gap Adjustment 42 Ignition Coil Resistance Inspection 42 Spark Testing 43 Stator Resistance Test 43 4...

Страница 46: ...feeler gauge between the flywheel and coil 4 Adjust the ignition coil gap at both side of the coil 5 Sufficiently tighten the mounting bolts Ignition Coil Resistance Inspection Primary Coil Place Ohm...

Страница 47: ...ve the spark plug from the engine 3 Connect the negative electrode of the spark plug threaded area to ground cylinder head cover 4 Crank the engine and view the electrode gap Spark should be present w...

Страница 48: ...44 RESIDENTIAL PRODUCTS Form Number 492 9235...

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