Subaru Robin Power Products EY20V, EY15V manual ’ 5-4-8CYLINDER Head, Kg-cm

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’5-4-8CYLINDER HEAD

Remove carbon fromthe cy1inde.rhead, particularly its combustion chamber, and make clean the cooling fins. Also check the head for distortion.

Note: Replace the cylinderhead gasketwith a new one. Note:DISTINCTION between the GASKET o f EY 15V and EY2OV

The pitch ofthe holes for the boltsfastening cylinder head and the outercircumference dimensions of the gasket for EY 15Vand EY20V are same. However, the inner dimensions are different each other. The gasket for E Y 15Vhas a red mark while thegasket for E Y20V has a green mark.

	Red Mark	Green Mark
	EY 15V	EY20V
	Fig. 36
Note: Cylinder head tightening torque: 220 - 260		/ Embossed Mark
	kg-cm
Note: DISCRIMINATIONo f CYLINDER HEAD
R	As stated above, the pitcho f the holes of cyl-
	inder head is common to bothEY15V and
	EY20V. For enabling to discrimate the cylin-

	der head of EYl5V from that of EY20V,an
	embossed mark 15 is given to theformer,	Fig. 37
	while no embossed mark is given to the latter.	Fig. 37
	while no embossed mark is given to the latter.

5-4-10 IGNITION COIL, FLYWHEEL and STARTER PULLEY

1)Temporarily fasten the ignition coil to the crankcase, and install the flywheel to the crankshaft. Starting pulley is fastened together with the flywheel.

Note: Before installing, wipe out oil fromthe crankshaftand the tapered portion ofthe flywheel.

Note: Flywheel tightening torque: 600 - 650 kg-cm

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Contents Page Wisconsin Robin Side ValveContents Basic Theory ofT .I.C Model SPEC1FICATIONSContinuous Rated Output PerformanceFeatures Crankshaft CYLINDER,CRANKCASE6VALVEARRANGEMENT Connecting ROD and PistonCamshaft Lubrication CylinderheadCooling 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. TransistorignitioncircuitDiscrimination accordingto the dimensions GovernoradjustmentPoint where the governorspring is to be hooked Page 1 Float System Carburetor1 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- 1-2 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 GasdischargeSolid State Ignition Type WiringBreaker Point 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 MaintenancePREPARATiON for Longabeyance Every 500 600 Hours Semiannual Checks and MaintenanceEvery 1000 Hours Yearly Checks and Maintenance Page Page Page Page Industrial Engines