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Subaru Robin Power Products EY15V, EY20V manual BREAK-IN OPERATION of REASSEMBLEDENGINE, I Hp

Models: EY20V EY15V

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9.BREAK-IN OPERATION of REASSEMBLEDENGINE

An overhauled engine must be operated at low speed break-in the parts. A thorough break-in is indispensable particularly when the cylinder, piston, pistonrings or valves are replaced with new ones.

The recommended break-in schedule is shownbelow.

		LOAD
	EY15V		EY20V
		NO LOAD
		NO LOAD
r		NO LOAD
r	1.35 HP	I	1.75 HP
I	2.7 HP	I HP	3.5

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SPEED

2,500rpm

3,000rpm

3,600rpm

rpm3,600

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TIME

10minutes

30 minutes

60minutes

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Subaru Robin Power Products EY15V, EY20V manual BREAK-IN OPERATION of REASSEMBLEDENGINE, I Hp

Contents

Page ROBIN TO WISCONSIN ROBIN ROBINEY08 EH15CONTENTS FEATURESHow To Disassemble How To Reassemble10-2 Basic Theory ofT .I.C 1. SPEC1FICATIONS ModelEY15V EYPOV2 - 2 CONTINUOUS RATED OUTPUT 2. PERFORMANCE2-3 MAXIMUM TORQUE and FUEL CONSUMPTION RATIO a t MAXIMUM OUTPUT 3. FEATURES 4. GENERAL DESCRIPTION of ENGINECONSTRUCTION 4 - 1 CYLINDER,CRANKCASE4 - 2 MAINBEARINGCOVER 4-3 CRANKSHAFT4-4 CONNECTING ROD and PISTON 4-5 CAMSHAFT4-6 VALVEARRANGEMENT Exhaust Valve4 - 9 COOLING 4-7 CYLINDERHEAD4-10 LUBRICATION 4-111 IGNITION 4-112CARBURETOR4-14 SECTIONAL VIEW of ENGINE MODEL EY15V MODEL EY15V Air CleanerMuffler Cover Crankshaft MODEL EY20V’piston Pin Main Bearing Cover Oil Scraper MODEL EY20V Oil Filler’5- 1 PREPARATIONS and SUGGESTIONS 5. DISASSEMBLY and REASSEMBLY5 - 2 SPECIAL TOOLS Tool ApplicalbeShape Model5-3 HOW TO DISASSEMBLE Choke RodOrder Lock BoltTool Flywheel PullerTool Plastic HammerOrderProcedures ProceduresRemarksTool Order Item~Sequesnceand precautionsin reassembling 0 Precaution in reassembling5 - 4 MOW TO REASSEMBLE 3 Dimensions of Crankshaft Pin CONNECTING ROD TO CRANKCONNECTINGPISTON ROD TO EY15V5-4-2 PISTON and PISTON RING 5 -4-3 CONNECTING ROD 5 - 4 - 4 TAPPET and CAMSHAFTE Y20 E Y I SInstall the main bearing cover to the crankcase 5 - 4 - 5 MAINBEARING COVER5-4-6 INTAKE and EXHAUST VALVES 3O53VALVE and VALVE GUIDE CLEARANCE EY15VFit t-heoil seal to the valve stem. Only for EY201 5-4-7 TAPPET ADJUSTMENTFront should be this side kg-cm 5-4-1 FUEL TANK BRACKET 5 -4-1 3 CARBURETOR and ITS RELATIVE PARTS MAGNETO 6 -2 BREAKERPOINTADJUSTMENT Fig.41to 6-3TIMING ADJUSTMENT 6-1 MAGNETO6-3 TIMING ADJUSTMENT See Figs. 42,43 and Note Refer tosection 4-11 IGNITION and 4-13 CHECKS and CORRECTIONS6 - 4 MAGNETOTROUBLESHOOTING “SPARK TESTING6-5 SOLIDSTATE IGNITION T.I.C. TRANSISTORIGNITIONCIRCUIT7. GOVERNORADJUSTMENT The point where the governorspring is to be hookedDiscrimination accordingto the dimensions l-”4Page 8. CARBURETOR 8- 1- 1 FLOAT SYSTEM8-2 DISASSEMBLY and REASSEMBLY air jet8-2-3 PILOT SYSTEM 8 - 2 - 4 MAIN SYSTEM 8-2-5 FLOAT SYSTEM9. BREAK-IN OPERATION of REASSEMBLEDENGINE I HP10-1 FEATURES IO. ROBIN SOLID STATE IGNITION ENGINE10-2 BASIC THEORY of T.I.C. See Fig 1 1- 1 - 1 FUEL SYSTEM 11- 1 STARTING DIFFICULTIES11-3 ENGINE STOPS 11-2ENGINGEMIFIRES11- 4 ENGINE OVERHEATS 11-5 ENGINEKNOCKS 11-6 ENGINEBACKFIRES through CARBURETOR12. INSTALLATION 12-4 POWER TRANSMISSION to DRIVENMACHINES12-4-1 BELT DRIVE 12-2 VENT1LATION12-5 WIRING BREAKER POINT IGNITION TYPESOLID STATE IGNITION TYPE Black13. CHECKS and CORRECTIONS 14. TABLE of CORRECTIONSTANDARDS L-l=EY20 0.251.o 1.o 0.040.037-0.063 0.050.05 0.10*0.020.25 ENGINE MODEL2.2/3000 MODELUSE LIMIT cc/hr 0.56EY20 EY20EY15 5/40015. MAINTENANCE and STORING 15-1 DAILY CHECKS and MAINTENANCE15-2 EVERY 20 HOURS CHECKS and MAINTENANCE 15-3 EVERY 50 HOURS IO DAYSCHECKS and MAINTENANCE15-6 EVERY 1000 HOURS YEARLY CHECKS and MAINTENANCE 15-5 EVERY 500 - 600 HOURS SEMIANNUAL CHECKS and MAINTENANCE15-7 PREPARATiON for LONGABEYANCE Page Page Page Page Industrial Engines