6-11. CRANKSHAFT AND FLYWHEEL (CONT)
Location/Item
Action
Remarks
CAUTION
Equipment damage could occur if bearing caps or shells are not returned to their original
positions. Follow directions noted during disassembly.
NOTE
When a new or reground crankshaft is installed, ALL new main and connecting rod (upper and
lower) bearing shells and new thrust washers must also be installed.
43. Main bear-
Install shells in their original positions. Ensure
Upper main bearing
ing shells
that bearing tangs fit into grooves in bearing
shells have oil
(upper)
supports.
grooves.
WARNING
Make sure that hoists and other lifting equipment are in good repair and of sufficient capacity to
safely handle loads without injury to personnel or damage to equipment. Securely attach lifting
equipment to crankshaft. Before lifting, be sure load is balanced.
44. Crankshaft
Apply clean MIL-L-2104 oil to
all crankshaft journals. Lower
crankshaft in place with a suit-
able lifting device equipped with
heavy rope or a sling, so that
timing marks on crankshaft
timing gear and idler gear match.
6-106
