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

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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 -

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Contents Page Side Valve Wisconsin RobinContents Basic Theory ofT .I.C SPEC1FICATIONS ModelPerformance Continuous Rated OutputFeatures CYLINDER,CRANKCASE CrankshaftConnecting ROD and Piston Camshaft6VALVEARRANGEMENT Cylinderhead CoolingLubrication 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. TransistorignitioncircuitGovernoradjustment Point where the governorspring is to be hookedDiscrimination accordingto the dimensions Page Carburetor 1 Float SystemDisassembly 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 System11-3ENGINE Stops 11- 1-3ELECTRICAL System11-2ENGINGEMIFIRES 11- 4 Engine OverheatsEngineknocks Enginebackfires through CarburetorVENT1LATION InstallationPower Transmission to Drivenmachines Exhaust GasdischargeWiring 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 MaintenanceEvery 500 600 Hours Semiannual Checks and Maintenance Every 1000 Hours Yearly Checks and MaintenancePREPARATiON for Longabeyance Page Page Page Page Industrial Engines