Subaru Robin Power Products EY20V, EY15V manual OrderProcedures

Page 21

OrderProcedures

(1)Removethecamshaftfromthecrankcase.

Tappet(1) Remove the tappets from the crankcase.

RemarksTool

To prevent the tap- pets from falling or damaging, place the crankcase on the side. (See Fig. 20.)

Before removing put a mark of intake or

exhaust on each tappet.

Fig. 20

I

Order Item

18Connectingrod and piston

19Pistonand piston pin

20Crankshaft

Procedures

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(1)Scrape off carbon and other foreign de- posits from the upper parts of the cylin- der and piston, and then straighten out the bent tabs of the lock washers on the connecting rod, and remove two pieces of the bolt.

(2)Removethelockwashersandconnecting rod cap from the crankshaft.

(3)Turn the crankshaft until the piston is raised up to the hightest position, push the connecting rod up, and remove the piston o u t of the top of the cylinder.

(1)Remove the two clips, pull out the piston pin, and take the piston off from the small end of the connecting rod.

(2)Spread the open ends of the piston rings and remove them from the piston.

( 1 ) Remove the woodruff key (for the mag- neto).

(2)Lightlyhammerthemagnetoendofthe crankshaft, and pull it out of the crank- case.

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Remarks

Be careful not to damage the inside of the small end the connecting rod. Be careful not to break the rings by spreading too much.

Be careful not to damage the rings by spreading too much.

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Tool

10 mm box spanner

3r 10 mm spanner

- 1 1 -

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Contents Page Wisconsin Robin Side ValveContents Basic Theory ofT .I.C Model SPEC1FICATIONSContinuous Rated Output PerformanceFeatures Crankshaft CYLINDER,CRANKCASEConnecting ROD and Piston Camshaft6VALVEARRANGEMENT Cylinderhead CoolingLubrication 112CARBURETOR 111IGNITIONModel EY15V Sectional View of EngineAir Cleaner Muffler Cover Model EY20V Model EY20V Special Tools Preparations and SuggestionsApplicalbeShape Model Order 3HOW to DisassembleTool Order Exhaust valve Main bearing cover Procedures Remarks OrderProcedures ~Sequesnceand precautionsin reassembling Precaution in reassemblingMOW to Reassemble CrankshaftEY15V Eyzov Dimensions of Crankshaft PinPeriphery.I Y20 5 Mainbearing Cover Valve and Valve Guide Clearance 6INTAKE and Exhaust Valves7TAPPET Adjustment Kg-cm ’ 5-4-8CYLINDER HeadIntake Manifold 1FUEL Tank Bracket1 7 Recoil Starter 14AIRCLEANERTo 6-3TIMING Adjustment BreakerpointadjustmentMagneto MagnetoTiming Adjustment See Figs ,43 Spark Testing MagnetotroubleshootingSolidstate Ignition C. TransistorignitioncircuitGovernoradjustment Point where the governorspring is to be hookedDiscrimination accordingto the dimensions Page 1 Float System CarburetorDisassembly and Reassembly 2 Pilotsystem1 Throttle System Float System BREAK-IN Operation of Reassembledengine Features IO. Robin Solid State Ignition EngineBasic Theory of T.I.C. See Fig 11- 1-2 Compression System 11- 1 Starting Difficulties11-2ENGINGEMIFIRES 11- 1-3ELECTRICAL System11-3ENGINE Stops 11- 4 Engine OverheatsEnginebackfires through Carburetor EngineknocksPower Transmission to Drivenmachines InstallationVENT1LATION Exhaust GasdischargeWiring Breaker Point Ignition TypeSolid State Ignition Type Checks and Corrections Table of Correctionstandards 1.o 10*0.02 #20 220 Every 20 Hours Checks and Maintenance Daily Checks and Maintenance15-3EVERY 50 Hours IO Dayschecks and Maintenance Every 100 200 Hours Monthly Checks and MaintenanceEvery 500 600 Hours Semiannual Checks and Maintenance Every 1000 Hours Yearly Checks and MaintenancePREPARATiON for Longabeyance Page Page Page Page Industrial Engines