Engine Specifications

VALVES (3B)

Spring (FL)

Free length 1-13/16 in.

70 - 80 lbs. at 29/32 in. (open) Free length 1-15/32 in.

Spring (FLH)

Free length 1-31/32 in.

70 - 80 lbs. at 51/64 in. (open) Free length 1-25/64 in.

Tappet adjustment Hydraulic tappet unit compressed 1/8 in. from fully extended position.

ROCKER ARM (3B)

Fit in bushing 0005 - .002 in. loose

End clearance 004 - .025 in.

PISTON (3C)

Fit in cylinder 001 - .002 in. loose

Compression ring side clearance . . .004 - .005 in.

Oil ring side clearance 003 - .005 in.

Piston pin fit Light hand press at 70° F.

CONNECTING ROD (3C)

Piston pin fit 0008 - .0012 in. loose

End play between flywheels 006 - .010. in.

Fit on crankpin

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