Westerbeke 9.0 BCG Technical Manual page 106

\
3. Measure the camshaft's lobe height. Replace the
camshaft if the wear limit is exceeded.
Cam Height (Both Intake and Exhaust)
Specified Limit
BCG 4.0KW: 1.559 - 1.563 inches
(39.604 - 39.704 mm)
BCG 6.5KW and BTG 9.0KW
1.5743 - 1.5822 inches
(39.987 - 40.187 mm)
Allowable Limit
BCG 4.0KW: 1.557 inches
(39.550 mm)
BCG 6.5KW and BTG 9.0KW
1.563 inches
(39.7 mm)
4. Measure the camshaft journal-to-cylinder
head journal clearance. Replace the part that
exhibits the most wear.
BCG 4.0KW Engine only
Camshaft Diameter
Specified Limit
Front: 1.2578 - 1.2586 inches
(31.950 - 31.970 mm)
Rear: 1.8872 - 1.8882 inches
(47.935 - 47.960 mm)
Allowable Limit
Front: 1.2559 inches (31.900 mm)
Rear: 1.8850 inches (47.880 mm)
Cylinder Head Bearing Diameter
Specified Limit
Front:
1.2598 - 1.2608
inches
(32.000 - 32.025
mm)
Rear: 1.8902 - 1.8911 inches
(48.010 - 48.035 mm)
Aliowable.Limit
Front: 1.2626 inches (32.070 mm)
Rear: 1.8929 (48.080 mm)
Westerbeke Generators 100