Subaru Robin Power Products EY15V, EY20V manual Mainbearing Cover

Page 26

5 - 4 - 5 MAINBEARING COVER

Install the main bearing cover to the crankcase.

Note: As the governor gear is mounted on themain

bearing coverside, installthemain bearing cover white checking that it meshes with the

teeth ofthe camgear.(See Fig. 28.) Mean- time, if the oil sealneed be replaced,press- fit a . new oil' sea/ before installing the main bearing cover.

Note: When installing main bearing cover, apply oil to the bearing and oil seal lip. Fit the oilseal guide over the crankshaft toprotect the oil seal lip from damage. Then place the main bearing cover on.

-thecrankshaft if its sideclearance is 0 0.2 mm; and if not, adjust it with the ad- justing shim. (See Fig. 29.)Check

Note: Mainbearing cover tightening torque: 80 - 700 kg-cm

Note: Fig. 30 shows one of the methods measuring the crankshaft side clearancebetween the ma- chined face o f the crankcase and adjusting col- lar. As a paper packing is used on themachin- ed face of the crankcase, adjust the clearance by taking this thickness of 0.22 mm into ac- count. (See Fig. 30.)

n

-1Pay attention to the engagement of the governor gear and cam gear.

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Fig. 28

. Main BearingCover

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Fig. 29

4Dial Indicator

1Ground Surface of Crankcase (The surface of the crankcase is to be put together with the sur- face of the main bearing cover.)

1

Fig. 30

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Contents Page Side Valve Wisconsin RobinContents Basic Theory ofT .I.C SPEC1FICATIONS ModelPerformance Continuous Rated OutputFeatures CYLINDER,CRANKCASE Crankshaft6VALVEARRANGEMENT Connecting ROD and PistonCamshaft Lubrication CylinderheadCooling 111IGNITION 112CARBURETORSectional View of Engine Model EY15VAir Cleaner Muffler Cover Model EY20V Model EY20V Preparations and Suggestions Special ToolsApplicalbeShape Model 3HOW to Disassemble OrderTool Order Exhaust valve Main bearing cover Procedures Remarks OrderProcedures MOW to Reassemble Precaution in reassembling~Sequesnceand precautionsin reassembling CrankshaftDimensions of Crankshaft Pin EY15V EyzovPeriphery.I Y20 5 Mainbearing Cover 6INTAKE and Exhaust Valves Valve and Valve Guide Clearance7TAPPET Adjustment ’ 5-4-8CYLINDER Head Kg-cm1FUEL Tank Bracket Intake Manifold14AIRCLEANER 1 7 Recoil StarterMagneto BreakerpointadjustmentTo 6-3TIMING Adjustment MagnetoTiming Adjustment See Figs ,43 Solidstate Ignition MagnetotroubleshootingSpark Testing C. TransistorignitioncircuitDiscrimination accordingto the dimensions GovernoradjustmentPoint where the governorspring is to be hooked Page Carburetor 1 Float System1 Throttle System Disassembly and Reassembly2 Pilotsystem Float System BREAK-IN Operation of Reassembledengine Basic Theory of T.I.C. See Fig FeaturesIO. Robin Solid State Ignition Engine 11- 1 Starting Difficulties 11- 1-2 Compression System11-3ENGINE Stops 11- 1-3ELECTRICAL System11-2ENGINGEMIFIRES 11- 4 Engine OverheatsEngineknocks Enginebackfires through CarburetorVENT1LATION InstallationPower Transmission to Drivenmachines Exhaust GasdischargeSolid State Ignition Type WiringBreaker Point Ignition Type Checks and Corrections Table of Correctionstandards 1.o 10*0.02 #20 220 15-3EVERY 50 Hours IO Dayschecks and Maintenance Daily Checks and MaintenanceEvery 20 Hours Checks and Maintenance Every 100 200 Hours Monthly Checks and MaintenancePREPARATiON for Longabeyance Every 500 600 Hours Semiannual Checks and MaintenanceEvery 1000 Hours Yearly Checks and Maintenance Page Page Page Page Industrial Engines