TM 5-3805-262-34
4-1. ENGINE MAINTENANCE (CONT)
d. Crankshaft and Main Bearings (Cont).
INSTALLATION (SHEET 1 OF 5)
When handling heated parts, always wear heat resistant gloves to prevent
burning your hands. If you burn your hands, get medical assistance imme-
diately.
(1)
Heat crankshaft gear (19) using gear and bearing heater.
(2)
Install key (20) and crankshaft gear (19) on crankshaft (18). Be sure
that timing mark on gear is facing outward.
Don’t press on center of bearing liners when installing them. Always use
a sliding type movement. Failure to do so may cause damage to bearing
liners.
(3)
(4)
(5)
(6)
(7)
Install seven main bearing liners
(16 and 17) in cylinder block us-
ing a sliding type movement. Lu-
bricate liners using clean engine
oil.
Install crankshaft (18) in cylin-
der block, alining timing marks
on crankshaft gear (19) and
shaft gear.
Install seven main bearing l
(16 and 17) in bearing caps
12, 13, and 14) using a slid
cam-
iners
(9,
ing
type movement. Make sure bearing
liner lock lines up with bearing
cap lock groove.
Clean crankshaft (18) main
bearing journals and place a
piece of plastigage on each
journal..
Install six main bearing caps
(12 thru 14) in cylinder block.
4-26
