Subaru Robin Power Products EY44-2, EY33-2 Performance, 1MAXIMUMOUTPUT, Continuousratedoutput

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2.PERFORMANCE

2-1MAXIMUMOUTPUT

The maximum output of an engine is such standard power as developed by that engine, after its initial run-in period witha1

themovingpartsproperlyworn-in,whenoperatingwiththefullyopenthrottlevalve. Therefore,itfollowsthat a nev

enginemaynotdevelopthismaximumoutputinthebeginning,becausemovingpartsarenotin aproperly w0rn-hcondition.

2-2 CONTINUOUSRATEDOUTPUT

 

The continuous rated output of an engine is such power as developed by that engine when running at an optimum

speec

most favorable from the point of view of engine life and fuel consumption ratio. Therefore, it follows that when designing i

driving systemforanymechanism,withamodel EY33-2or EY44-2engine, as a primemover,thecontinuouspowe requirement of that mechanism must be kept below the continuous rated output specified.

2-3MAXIMUMTORQUEANDFUEL CONSUMPTION RATIOATMAX.OUTPUT

The maximum torque of an engine is that driving torque of the driving shaft at which the engine is driving an external load while the engine is developing its max. output. The fuel consumption ratio at max. output is that fuel consumption ratio o an engine while that engine is running at the max. output.

PERFORMANCECURVE

Model EY33-2

( ) f o r B type

RECOMMENDED OPERATING SPEED RANG

a

HPI 7

5

I

 

M A X .

TORQUE

 

5

 

 

1.7(3.4)

125112

-I

 

124)12 --

 

 

1.6(3.2)

 

 

 

~

ft"b (23J11.5--

 

 

kgI-rn

1.5 ( 3 . 0 )

320

300

280 g/ P.h

2000

3500

2500

3000

 

(1OOO)

 

112501

rpm -115001

11750)

- 2 -

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Contents Page Diesel FuelSystem Troubleshooting RUN-INOPERATIONSPEC1FICATIONS Continuousratedoutput Performance1MAXIMUMOUTPUT 3MAXIMUMTORQUEANDFUEL Consumption RATIOATMAX.OUTPUTFeatures Performance CurveModel EY44-2 Lighting Coil FLYWHEELCOOLI~GFANSEl Crankshaft CrankcaseMainbearing Cover CamshaftCooling 15AIRCLEANER10GOVERNOR Lubrication2VENTILATION InstallationMounting Exhaust GAS EvacuationRope Startingengine ENGINEwithSTARTINGMOTOR1PREPARATIONS and Suggestions Specialtools4MUFFLER 2BLOWER Housing and Cylinderbaffle3AIRCLEANER 5GOVERNORLEVER and CarburetorTappet Chamber with the Compressor Valve and Valvestemholeclearance 0ossAdjusting Tappet Clearance Fig 9CYLINDERBLOCK12CONNECTING ROD and Piston Camshaft and TappetPiston and Connecting ROD Assembly of Connecting RODPiston Ring See Fig 13CRANKSHAFT -3-13 Magneto 4MAGNETO Service Instructions See FigChecking Ignition Spark Governor Adjustment Carburetor Operation and Construction see Figs -1-1andFloat System Disassembly and Reassembly Pilot System4MAIN System 3ADJUSTMENT3PILOT System 5FLOATSYSTEMRUN-IN Operation of Engine after Reassembly Startingdifficulties 11 1 1 Fuel SystemCompression System Engine Misses Engine StopsEngineoverheats 11-5ENGINE Knocks 11-6ENGINE Backfires Through CarburetorChecks and Corrections Orrection Table SizeIo.1 +o.1 01500 250-300 18-2 Every 50 HOURS10DAY Checks and Maintenance Daily Checks and MaintenanceEVERY20HOURS Checks and Maintenance 134EVERY 100 200 Hoursmonthly Checks and Maintenance13-5EVERY 500 600 Hourssemianual Checks Maintenance13-6EVERY 1000 Hours Yearly Checks and Maintenance 13-7PREPARATION for Long AbeyancePage Page Industrial Engines