Checking The Camshaft - Westerbeke 9.0 BCG Technical Manual

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7. Check the crankshaft's thrust clearance with a
feeler gauge, as shown in the figure. If it exceeds
the allowable limit, replace the thrust washer.
Specified Limit
BCG 4.0KW: 0.0008 - 0.0086 inches
(0.020 - 0.044 mm)
BCG 6.5KW and BTG 9.0KW:
0.0004 - 0.0063 inches
(0.010 - 0.160 mm)
Allowable Limit
BCG 4.0KW: 0.0118 inches (0.30 mm)
BCG 6.5KW and BTG 9.0KW:
0.0118 inches (0.30 mm)
Kinds of Thrust Washers:
Standard Repair
Over size 0.0049 inches (0.125 mm)
Oversize 0.0098 inches (0.250 mm)
Checking the Camshaft
1. Check the camshaft for cracks, wear or
damage and replace it if necessary.
2. Measure the runout. If it exceeds the allow-
able limit, replace the camshaft.
Allowable Limit of Runout: 0.0012 (0.03
mm)
99
0.0764 - 0.0783 inches (1.940 - 1.990 mm)
0.0813 - 0.0833 inches (2.065 - 2.115 mm)
0.0862 - 0.0882 inches (2.190 - 2.240 mm)
Westerbeke Generators