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TM 55-1905-220-14-7
3-172.2. CRANSHAFT - MAINTENANCE INSTRUCTIONS.
a.
The crankshaft is one-piece steel forging, heat-treated to ensure strength and durability. The main
and connecting rod bearing journal surfaces and fillers on all crankshafts are induction hardened.
b.
Complete static and dynamic balance of the crankshaft has been achieved by counterweights
incorporated into the crankshaft.
c.
The crankshaft end play is controlled by thrust wa hers located at the rear main bearing cap of the
s
engine. Full pressure lubrication to all connecting rod and main bearings is provided by drilled passages within
the crankshaft and cylinder block.
d.
Two dowels and six tapped holes are provided in the rear end of the crankshaft for locating and
attaching the flywheel. One hole is unequally spaced so that the flywheel can be attached in only one position.
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