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TM 5-4210-220-34
(3)
Examine bearings by holding the inner race stationary, and slowly spinning the outer race by hand If the
bearing is worn or does not roll freely, replace the bearing.
(4)
If gear assembly is damaged, refer to REPAIR section following for detailed repair procedures.
INSTALLATION
NOTE
The two camshaft gears mesh with each other and run at the same speed as the crankshaft gear. Since the
camshaft gears must be in time with each other, and the two as a unit in time with the crankshaft gear, timing
marks have been stamped on the face of the gears to facilitate correct gear train timing. The symbol system
of marking the gears makes gear train timing a comparatively easy operation.
Using the following illustration, line up the appropriate symbols on the gears as each gear assembly is installed on the
engine. There is not advance timing (A) on the V-92 engine group. After installation, check the backlash between the
various mating gears.
New Gear Backlash 0.002 - 0.008 in. (0.051 - 0.203 mm)
Worn Gear Backlash 0.010 In. Maximum (0.254 mm maximum).
If the engine was completely disassembled, it is easier to install the crankshaft gear first. Then working from the
crankshaft gear to the idler gear and to the camshaft gears, line up the appropriate symbols to time the gear train.
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