Subaru Robin Power Products R1200 HAssembly sequence and precautions 9-4-lCRANKSHAFT

HAssembly sequence and precautions 9-4-l CRANKSHAFT

(1)Fit the crankshaft oil seal guide onto the crankshaft tip and assemble it with the crank case as shown in Fig. 9-4-l.

Note: When the oil seal guide is not used, be careful not to damage the oil seal lip.

(2)Mount the woodruff key (for the mag- neto).

(3)Dimentional tolerance of the crankpin.

I

Oil Seal Guide

External Diameter 24~) Z-03;

.Crankshaft

Crankcase

I

Fig. 942

WTolerances of new installed parts

I

Thrust directional

tolerance

between

the

cylinder and

piston

skirt

0.02OL

-

0.059L

Clearance

between

the

piston

ring

joints

0.2L

-

0.4L

1

i

Top ring

0.09OL

-

0.135L

Clearance

between

the

piston

rings

!

Second ring

0.060L

-

0.105L

I

Oil ring

O.OlOL

-

0.065L

/

1

Clearance

between the internal and

s

0.037 L -

0.063 L

Clearance

between

the

connecting

rod

’

external

diameters

major ring and crank pin

1

Side clearance

0.1 L -

0.3L

Clearance

between

the

connecting

minor

rod

edge and

piston

pin

O.OlOL

-

0.029L

Clearance

between

the

piston

pin

and

piston

hole

i

0.009L

-

0.01 OL

Table

94

7

Note: The clearance between the piston and cylinder is checked by measuring the clearance between the piston and cylinder skirt.

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