Checking The Flywheel And Ring Gear - Westerbeke 7.0 KW BGC -60Hz Technical Manual

5. Assemble the oil strainer.
Tightening torque bolt, nut: 4.62 - 6.93 ft-Ib
(0.64 - 0.96 kg-m)
Checking the Flywheel and Ring Gear
1. Checktheflywheelfordamage or wear. Check the ring
gear's teeth for wear. Replace the ring gear
if it
is
badly worn.
2. Check the runout limit on the flywheel.
Runout Umit: 0.0039 in. (0.10 mm)
2. Replace the ring gear by the following procedure:
a. Heat the ring with a torch.
b. Remove the ring gear by striking its circumference.
c. Heat the new ring gear to 250 - 300
0
C (480 - 570
0
F) on a hot plate or in an oven. Before Slipping it onto
the flywheel, make sure that the chamfered side of the ring gear is directed toward the engine.
NOTE: Excessive heat may destroy the original heat treatment and cause premature failure
of the ring gear.
Westerbeke Generators
80