Subaru Robin Power Products EY20V, EY15V manual 1.o

Page 49

I

ITEM

 

ENGINE

 

I

MODEL

I

 

 

 

 

Piston pin 0 .D.

EY15

 

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.

 

 

 

EY20

 

and crankpin

 

 

 

 

 

Small end I.D.

1

EY15

1

 

Clearance between

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 -

Page 48 Page 50
Image 49
Page 48 Page 50
Contents Page Wisconsin Robin Side ValveContents Basic Theory ofT .I.C Model SPEC1FICATIONSContinuous Rated Output PerformanceFeatures Crankshaft CYLINDER,CRANKCASECamshaft Connecting ROD and Piston6VALVEARRANGEMENT Cooling CylinderheadLubrication 112CARBURETOR 111IGNITIONModel EY15V Sectional View of EngineAir Cleaner Muffler Cover Model EY20V Model EY20V Special Tools Preparations and SuggestionsApplicalbeShape Model Order 3HOW to DisassembleTool Order Exhaust valve Main bearing cover Procedures Remarks OrderProcedures ~Sequesnceand precautionsin reassembling Precaution in reassemblingMOW to Reassemble CrankshaftEY15V Eyzov Dimensions of Crankshaft PinPeriphery.I Y20 5 Mainbearing Cover Valve and Valve Guide Clearance 6INTAKE and Exhaust Valves7TAPPET Adjustment Kg-cm ’ 5-4-8CYLINDER HeadIntake Manifold 1FUEL Tank Bracket1 7 Recoil Starter 14AIRCLEANERTo 6-3TIMING Adjustment BreakerpointadjustmentMagneto MagnetoTiming Adjustment See Figs ,43 Spark Testing MagnetotroubleshootingSolidstate Ignition C. TransistorignitioncircuitPoint where the governorspring is to be hooked GovernoradjustmentDiscrimination accordingto the dimensions Page 1 Float System Carburetor2 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- 1-2 Compression System 11- 1 Starting Difficulties11-2ENGINGEMIFIRES 11- 1-3ELECTRICAL System11-3ENGINE Stops 11- 4 Engine OverheatsEnginebackfires through Carburetor EngineknocksPower Transmission to Drivenmachines InstallationVENT1LATION Exhaust GasdischargeBreaker Point Ignition Type WiringSolid State Ignition Type Checks and Corrections Table of Correctionstandards 1.o 10*0.02 #20 220 Every 20 Hours Checks and Maintenance Daily Checks and Maintenance15-3EVERY 50 Hours IO Dayschecks and Maintenance Every 100 200 Hours Monthly Checks and MaintenanceEvery 1000 Hours Yearly Checks and Maintenance Every 500 600 Hours Semiannual Checks and MaintenancePREPARATiON for Longabeyance Page Page Page Page Industrial Engines
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