- Put the camshaft in V-blocks and have a dial indicator contact the inside
face of the cam gear. If run-out exceeds 0.0098 inch (0.24892mm), replace
the gear.
- Using a dial micrometer and a set of V-blocks, measure the camshaft bearing
wear and the camshaft bend; the bend limit is 0.002 inch (0.0508mm).
- Measure the cam gear-to-crankshaft backlash. Mount a dial indicator with
its stem resting on a tooth of the camshaft gear. Rotate the gear until all
slack is removed, and zero the indicator. Rotate the gear in the opposite
direction until slack is removed, and record gear backlash. Mount the indicator
with its stem resting on the edge of the camshaft gear, parallel to the axis
of the camshaft. Zero the indicator, then turn the camshaft gear one full
turn and record the run-out. If either backlash or run-out exceeds specifications,
replace the worn gear(s).
