TM 10-4320-307-24
3-37
FLYWHEEL AND FLYWHEEL HOUSING INSPECT/REPLACE/ALlGN CONT).
i.
Check flywheel face runout as follows:
(1)
Install contact tip of indicator against flywheel
face (11) as close to outside diameter as
possible.
(2)
Push flywheel forward to remove crankshaft end
clearance. Adjust dial on indicator until needle
points to 0 (zero).
NOTE
The flywheel must be pushed toward the front of the engine to remove the crankshaft end clearance
each time a point is measured.
(3)
Using accessory drive shaft, rotate crankshaft one complete revolution. Measure flywheel runout at four
equal points on flywheel.
(4)
Total indicator reading (TIR) must not exceed the referenced specifications.
Flywheel
Maximum (TIR)
Radius (A)
of Flywheel Face
mm
in
mm
in
203
8
0.203
0.008
254
10
0.254
0.010
305
12
0.305
0.012
356
14
0.356
0.014
406
16
0.406
0.016
(5)
If TIR is not within specifications, remove flywheel and inspect for nicks, burrs, or foreign material between
flywheel mounting surface and crankshaft flange.
j.
Install starter motor in accordance with paragraph 2-43.
k.
Install speed increaser in accordance with paragraph 3-18.
3-144
