TM 9-4940-549-14&P
(2) Apply a light coat of engine oil to the bushing (5), and con-
necting rod (6), and press the bushing into the connecting
rod.
(3) Fit piston assemblies (11), onto connecting rods (6), and insert
piston pins (10). Install retaining rings (9).
Installation.
e.
NOTE
Prior to installation of piston assem-
blies inspect cylinder block, cam-
shaft and cylinder head prior to in-
stallation of the piston, connecting
rods and crankshaft .
Install upper half of main bearing inserts (32 and 33, figure
(1)
NOTE
Some of the bearings partially cover
oil holes.
Carefully place crankshaft (43) into position.
(2)
Place a short strip of plastic gauge on each main bearing jour-
(3)
nal.
(4)
Install lower half of main bearings, main bearing caps (27, 28,
29, and 30), and screws (25 and 26).
Tighten screws (25) to 100 lb-ft torque. Tighten screws (26)
(5)
to 130 lb-ft torque.
Remove main bearing caps and lower half of main bearings.
(6)
Check plastic gauge against standard to determine main bearing
clearance. Clearance shall be 0.0009 to 0.0034 inch.
If clearance is not within specified limits, grind crankshaft and
(7)
install with undersized bearings (para. c(7) above).
When bearing clearances have been established, install lower
(8)
half of main bearings and main bearing caps (step (4) above).
NOTE
Apply a liberal coating of engine lu-
bricating oil to inner surface of main
bearings prior to installation.
12-36
