Performance | Subaru Robin Power Products EY15V, EY20V instruction

2.PERFORMANCE

2 - 1 MAXIMUM OUTPUT

The maximum output of an engine is such standard power asdeveloped by the engine, after its initial break- in period with all the moving parts properly worn in, when operating with a fully open throttlevalve. There- fore, a new engine may not develop the maximum outputin the beginning because the moving parts are not in a properly worn-in condition.

2 - 2 CONTINUOUS RATED OUTPUT

The continuous rated output of an engine is such power as developed by that engine when running continu- ously at an optimum speed, and most favorable from the viewpoint of engine life and fuel consumption ratio, with the governor in operation. It is suggested., therefore, that when designing a driving system for anymech- anism, with this engine as prime mover, the continous power requirement of that mechanism be kept below the continuous rated output specified.

2-3MAXIMUM TORQUE and FUEL CONSUMPTION RATIO a t MAXIMUM OUTPUT

These mean the maximum torque of the output shaft andfuel consumption ratio at the maximum output of an engine.

PERFORMANCE CURVE

MODEL EY15V

Kg-rn

HP

'If+	Recommended1			-				j
'If+	Recommended1			Operatings	Speed Range			j
1	I	I	I	I	I	I	I	J
2000				3000				3600

r.p.rn.

Revolution

- 2 -

Image 6

Subaru Robin Power Products EY15V, EY20V manual Performance, Continuous Rated Output

Contents

Page Side Valve Wisconsin Robin Contents Basic Theory ofT .I.C SPEC1FICATIONS Model Performance Continuous Rated Output Features CYLINDER,CRANKCASE Crankshaft Connecting ROD and Piston Camshaft6VALVEARRANGEMENT Cylinderhead CoolingLubrication 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 MOW to Reassemble Precaution in reassembling~Sequesnceand precautionsin reassembling 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 Magneto BreakerpointadjustmentTo 6-3TIMING Adjustment Magneto Timing Adjustment See Figs ,43 Solidstate Ignition MagnetotroubleshootingSpark Testing C. Transistorignitioncircuit Governoradjustment Point where the governorspring is to be hookedDiscrimination accordingto the dimensions Page Carburetor 1 Float System Disassembly 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 Starting Difficulties 11- 1-2 Compression System 11-3ENGINE Stops 11- 1-3ELECTRICAL System11-2ENGINGEMIFIRES 11- 4 Engine Overheats Engineknocks Enginebackfires through Carburetor VENT1LATION InstallationPower Transmission to Drivenmachines Exhaust Gasdischarge Wiring Breaker Point Ignition TypeSolid State 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 Maintenance Every 500 600 Hours Semiannual Checks and Maintenance Every 1000 Hours Yearly Checks and MaintenancePREPARATiON for Longabeyance Page Page Page Page Industrial Engines