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 TM 10-3930-660-24-2
CRANKSHAFT MAINTENANCE - CONTINUED
0271 00
INSTALLATION - CONTINUED
NOTE
End play is controlled by the dimensions of the thrust bearing and crankshaft journal at the no. 6 main bear-
ing position.
25.
Measure crankshaft end play using a dial indicator as
shown in this illustration.
FRONT OF CRANKSHAFT
26.
Push crankshaft forward, then toward rear of engine.
With a new thrust bearing, end play limits must not
exceed 0.005 to 0.010 in. (0.127 to 0.254 mm).
CRANKSHAFT END PLAY
27.
If end play measurement is greater than 0.010 in.
(0.254 mm), install a larger size thrust bearing.
CRANKSHAFT
END PLAY
409-919
28.
To determine connecting rod bearing clearance, turn crankshaft until two connecting rod bearing journals are bottom
center.
29.
Be sure crankshaft journals, bearing area on connecting rods, inner surface of connecting rod caps, and connecting rod
bearings are dry and clean.
30.
Put new upper main bearing half (10) on connecting
rod (9) and pull piston and connecting rod assembly
against crankshaft journal. Bearing tabs must be in the
9
tab grooves of the connecting rod (9).
10
11
7
8
409-902
0271 00-12
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