Manuals / Subaru Robin Power Products / Lawn and Garden / Portable Generator

Subaru Robin Power Products EY20V 1.o 1.o, 0.04, 0.037-0.063, 0.05, 0.08, 0.15, Engine, Model

Models: EY20V EY15V

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Page 49

ENGINE

	I	ITEM		ENGINE
		ITEM	I	MODEL	I
				MODEL

		Piston pin 0 .D.		EY15
		Piston pin 0 .D.		EY20

STANDARD

SIZE

’*

CORRECTION		USE	REMARKS
	I LIMIT			TOOL
TOLERANCE		LIMIT ~
0 - -0.008	- 0.04	-0.04		Micro-
				meter

1

CORRECTIOP

METHOD

Replace

			EY15
	Large end I.D.
			EY 20
	Clearance between		EY15
	rod large end I.D.		EY15
	rod large end I.D.		EY20
	and crankpin		EY20
	and crankpin
	Small end I.D.	1	EY15	1
	Small end I.D.
	Clearance between		EY15
	small end I.D.		EY15
	small end I.D.		EY20
	and pinstonpin	I		I
	Large endside		EY15
			EY20

clearance

Parallelism between EY15 1 large end and

small end bores EY 20

betweenDistance large end and small end bores

Crankpin O.D.

Crankpin O.D. 1 E Y 1 5 1 roundness

EY20

Crankpin O.D. 1 EY15 1 cylindricity

EY20

Crankpin O.D. parallelism

II

EY15

Crankshaft journal O.D.

24dia.

26dia.

i:1

24dia.

26dia.

I

Drive s. 2 5 dia.

Mag. s. 25 dia.

Drive s. 25 dia.

Mag. s. 25 dia.

+0.013

0

0.037-0.063

0.010-0.021

0.010-0.029

0.1- 0.3

0.05

?0.1

-0.037

-0.050

Less than 0.005

Less than 0.005

Less than 0.008

-0.003

-0.01 2

0.10.1

0.20.2

0.080.08

0.1 2 0.12

1.o 1.o

0.10.1

0.15

0.15 0.5

- 0.05 - 0.05

Cylinder

gauge, Micro- meter

Cylinder PU9e

Cylinder gauge.

Micro- meter

Test bar and Dial

gauge

Micro- meter

Micro- meter

Micro- meter

Dial

gauge

Micro- meter

Replace

Replace

Replace

Replace

Re-machine or Replace

Re-machine orReplace

Re-machine or Reolace

Replace

height	Cam lobe	1	EY20	1

	Journal O . D .		~;~~1 Drive s. 15 dia.

Mag. s. 15 dia.

20.1

-0.016--0.027

- 0.25 - 0.25

-0.05 -0.05

Micro- meter

Micro. meter

Replace

~

Replace

- 45 -

Image 49

Subaru Robin Power Products EY20V 1.o 1.o, 0.04, 0.037-0.063, 0.05, 0.08, 0.15, Engine, Model, Standard Size, Correction

Contents

Page ROBIN ROBIN TO WISCONSIN ROBINEY08 EH15FEATURES CONTENTSHow To Disassemble How To Reassemble10-2 Basic Theory ofT .I.C Model 1. SPEC1FICATIONSEY15V EYPOV2 - 2 CONTINUOUS RATED OUTPUT 2. PERFORMANCE2-3 MAXIMUM TORQUE and FUEL CONSUMPTION RATIO a t MAXIMUM OUTPUT 3. FEATURES 4 - 1 CYLINDER,CRANKCASE 4. GENERAL DESCRIPTION of ENGINECONSTRUCTION4 - 2 MAINBEARINGCOVER 4-3 CRANKSHAFT4-5 CAMSHAFT 4-4 CONNECTING ROD and PISTON4-6 VALVEARRANGEMENT Exhaust Valve4 - 9 COOLING 4-7 CYLINDERHEAD4-10 LUBRICATION 4-112CARBURETOR 4-111 IGNITION4-14 SECTIONAL VIEW of ENGINE MODEL EY15V MODEL EY15V Air CleanerMuffler Cover Crankshaft MODEL EY20V’piston Pin Main Bearing Cover Oil Scraper Oil Filler’ MODEL EY20V5- 1 PREPARATIONS and SUGGESTIONS 5. DISASSEMBLY and REASSEMBLY5 - 2 SPECIAL TOOLS ApplicalbeShape Model ToolChoke Rod 5-3 HOW TO DISASSEMBLEOrder Lock BoltFlywheel Puller ToolPlastic Hammer ToolProcedures OrderProceduresRemarksTool Order Item~Sequesnceand precautionsin reassembling 0 Precaution in reassembling5 - 4 MOW TO REASSEMBLE CONNECTING ROD TO CRANK 3 Dimensions of Crankshaft PinCONNECTINGPISTON ROD TO EY15V5-4-2 PISTON and PISTON RING 5 - 4 - 4 TAPPET and CAMSHAFT 5 -4-3 CONNECTING RODE Y20 E Y I S5 - 4 - 5 MAINBEARING COVER Install the main bearing cover to the crankcase3O53 5-4-6 INTAKE and EXHAUST VALVESVALVE 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 6 -2 BREAKERPOINTADJUSTMENT Fig.41 MAGNETOto 6-3TIMING ADJUSTMENT 6-1 MAGNETONote Refer tosection 4-11 IGNITION and 4-13 CHECKS and CORRECTIONS 6-3 TIMING ADJUSTMENT See Figs. 42,43 and“SPARK TESTING 6 - 4 MAGNETOTROUBLESHOOTING6-5 SOLIDSTATE IGNITION T.I.C. TRANSISTORIGNITIONCIRCUITThe point where the governorspring is to be hooked 7. GOVERNORADJUSTMENTDiscrimination accordingto the dimensions l-”4Page 8- 1- 1 FLOAT SYSTEM 8. CARBURETOR8-2 DISASSEMBLY and REASSEMBLY air jet8-2-3 PILOT SYSTEM 8-2-5 FLOAT SYSTEM 8 - 2 - 4 MAIN SYSTEMI HP 9. BREAK-IN OPERATION of REASSEMBLEDENGINE10-1 FEATURES IO. ROBIN SOLID STATE IGNITION ENGINE10-2 BASIC THEORY of T.I.C. See Fig 11- 1 STARTING DIFFICULTIES 1 1- 1 - 1 FUEL SYSTEM11-3 ENGINE STOPS 11-2ENGINGEMIFIRES11- 4 ENGINE OVERHEATS 11-6 ENGINEBACKFIRES through CARBURETOR 11-5 ENGINEKNOCKS12-4 POWER TRANSMISSION to DRIVENMACHINES 12. INSTALLATION12-4-1 BELT DRIVE 12-2 VENT1LATIONBREAKER POINT IGNITION TYPE 12-5 WIRINGSOLID STATE IGNITION TYPE Black13. CHECKS and CORRECTIONS L-l= 14. TABLE of CORRECTIONSTANDARDSEY20 0.250.04 1.o 1.o0.037-0.063 0.050.10*0.02 0.050.25 ENGINE MODELMODEL 2.2/3000USE LIMIT cc/hr 0.56EY20 EY20EY15 5/40015-1 DAILY CHECKS and MAINTENANCE 15. MAINTENANCE and STORING15-2 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