Specifications

CHAPTER 6. CAMSHAFT, BEARINGS AND SEALS

SECTION 1. CAMSHAFT

CAMSHAFT GEAR TEETH WEAR. When servicing

engines, check the camshaft at the points indicated

by the asterisks in figure. Examine the gear teeth

for wear and damage. See Specifications.

NOTE: If a damaged gear is replaced, the mating

gear should also be replaced.

Example: If the camshaft is damaged and replaced,

the crankshaft gear should be replaced.

MECHANICAL COMPRESSION RELEASE. Clean

the mechanism in a conventional parts cleaner and

dry thoroughly. Individual component parts are not

available as service replacement and cannot be obtained

from the factory. New replacement camshafts with

the compression relief mechanism are available.

VALVE TIMING. Match chamfered gear tooth on

crankshaft with mark and hobbing hole on camshaft

gear.

VALVE TIMING FOR ENGINE WITH HELICAL CUT

GEARS.

NOTE: When matching up helical gears, do so with

a slight rotating motion of the crankshaft to the right.

This way the teeth will slide together easier and the

chamfered tooth and match mark will line up.

*SEE SPECIFICATIONS

SECTION FOR

DIMENSIONS

C/S PTO END

CHAMFERED TOOTH

MARK

HOBBING HOLE

CHAMFERED GEAR TOOTH

TIMING

MARK

HOBBING

HOLE