Subaru Robin Power Products EY15V, EY20V manual

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

1 I

SPEED

2,500rpm

3,000rpm

3,600rpm

rpm3,600

rpm3,600

I I

TIME

10minutes

10minutes

10minutes

30 minutes

60minutes

I I

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Image 40

Subaru Robin Power Products EY15V, EY20V manual BREAK-IN Operation of Reassembledengine

Contents

Page Side Valve Wisconsin Robin Contents Basic Theory ofT .I.C SPEC1FICATIONS Model Performance Continuous Rated Output Features CYLINDER,CRANKCASE Crankshaft Camshaft Connecting ROD and Piston6VALVEARRANGEMENT Cooling CylinderheadLubrication 111IGNITION 112CARBURETOR Sectional View of Engine Model EY15V Air Cleaner Muffler Cover Model EY20V Model EY20V Preparations and Suggestions Special Tools ApplicalbeShape Model 3HOW to Disassemble Order Tool Order Exhaust valve Main bearing cover Procedures Remarks OrderProcedures Precaution in reassembling ~Sequesnceand precautionsin reassemblingMOW to Reassemble Crankshaft Dimensions of Crankshaft Pin EY15V Eyzov Periphery.I Y20 5 Mainbearing Cover 6INTAKE and Exhaust Valves Valve and Valve Guide Clearance 7TAPPET Adjustment ’ 5-4-8CYLINDER Head Kg-cm 1FUEL Tank Bracket Intake Manifold 14AIRCLEANER 1 7 Recoil Starter Breakerpointadjustment To 6-3TIMING AdjustmentMagneto Magneto Timing Adjustment See Figs ,43 Magnetotroubleshooting Spark TestingSolidstate Ignition C. Transistorignitioncircuit Point where the governorspring is to be hooked GovernoradjustmentDiscrimination accordingto the dimensions Page Carburetor 1 Float System 2 Pilotsystem Disassembly and Reassembly1 Throttle System Float System BREAK-IN Operation of Reassembledengine IO. Robin Solid State Ignition Engine FeaturesBasic Theory of T.I.C. See Fig 11- 1 Starting Difficulties 11- 1-2 Compression System 11- 1-3ELECTRICAL System 11-2ENGINGEMIFIRES11-3ENGINE Stops 11- 4 Engine Overheats Engineknocks Enginebackfires through Carburetor Installation Power Transmission to DrivenmachinesVENT1LATION Exhaust Gasdischarge Breaker Point Ignition Type WiringSolid State Ignition Type Checks and Corrections Table of Correctionstandards 1.o 10*0.02 #20 220 Daily Checks and Maintenance Every 20 Hours Checks and Maintenance15-3EVERY 50 Hours IO Dayschecks and Maintenance Every 100 200 Hours Monthly Checks and Maintenance Every 1000 Hours Yearly Checks and Maintenance Every 500 600 Hours Semiannual Checks and MaintenancePREPARATiON for Longabeyance Page Page Page Page Industrial Engines