3-20
MD1261
5. Match the width of the plasti-gauge with the chart
found on the plasti-gauge packaging to determine
camshaft to cylinder head and valve cover clear-
ance.
CC145D
6. If clearance is excessive, measure the journals of
the camshaft.
CC287D
NOTE: If the journals are worn, replace the cam-
shaft; then measure the clearance again. If it is still
out of tolerance, replace the cylinder head.
Inspecting Camshaft Spring/Drive
Pin
1. Inspect the spring and unloader pin for damage.
CF061A
NOTE: With the weight extended, the unloader
pin should be flat-side out; with the weight
retracted, the unloader pin should be round-side
out.
CF060A
2. If damaged, the camshaft must be replaced.
Installing Top-Side
Components
A. Piston
B. Cylinder
1. Lubricate the piston pin, connecting rod, and pis-
ton pin bore with motor oil; then install the piston
on the connecting rod making sure there is a cir-
clip on each side and the open end of the circlip is
directed upwards or downwards.
NOTE: The piston should be installed so the
arrow points towards the exhaust.
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