TM 9-1803A
16
ORDNANCE MAINTENANCE - ENGINE AND ENGINE ACCESSORIES FOR ‘/4.TON
4x4 TRUCK (WILLYS.OVERLAND MODEL MR AND FORD MODEL GPW)
/
RA PD 2
Figure 31
- Flywheel Ring Gear and Pilot Bushing
16. FLYWHEEL ASSEMBLY.
a. Cleaning. Wash the flywheelthoroughly in dry-cleaning solvent.
b. Inspection and Repair. A flywheel (fig. 3 1) with an exces-
sively scored or worn friction face must be replaced. A flywheel ring
gear with broken, chipped, or excessively worn teeth must be replaced
(subpars. c and d below). Measure the inside diameter of the main
drive gear pilot bushing. If more than 0.632 inch, it must be replaced
(subpars c and d below). If a new crankshaft or flywheel is being
used, it must be fitted as outlined in subparagraph e below.
c. Disassembly. Drive the main drive gear pilot bushing out of
the flywheel. Heat the flywheel ring gear until it can be driven off the
flywheel.
d. Assembly. Clean the fl_ywheel ring gear recess on the fl_ywheel.
Apply heat evenly to the ring gear. When the ring gear is thoroughly
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