Westerbeke Universal M-50 - Checking Camshaft Alignment; Checking Oil Clearance of Camshaft; Timing Gears, Camshaft

TIMING GEARS, CAMSHAFT
CHECKING OIL CLEARANCE OF CAMSHAFT
1. Measure the camshaft bearing in the crankcase with an inside micrometer.
2. Measure the camshaft journal with an outside micrometer. Calculate the clearance.
3. If the clearance exceeds the allowable limit, replace the camshaft. See engine specifications.
CHECKING CAMSHAFT ALIGNMENT
1. Gently put the camshaft on V blocks.
2. Set a dial gauge to the journal.
3. While slowly rotating the camshaft, read the dial gauge. The camshaft flexure is half of the
reading.
4. If the measurement exceeds the allowable limit, replace the camshaft.
I Allowable limit
117
0.08 mm
0.0031 in.