TM 5-4310-451-14
5-32. MAIN BEARINGS AND CRANKSHAFT MAINTENANCE (Cont).
e. INSTALLATION
CAUTION
DO NOT handle bearing shells and thrust washers more than necessary for Installation. Oil from
hands can cause damage.
NOTE
Bearing surfaces are marked 1 to 4 from front to rear of engine block.
1.
Aline tab (22) on upper bearing shell (11) with
slot (23) on bearing cap mounting surface (24).
2.
Install upper bearing shell (11), ensuring that
both ends of upper bearing shell are flush with
bearing cap mounting surfaces (24).
3.
Repeat steps 1 and 2 for other three upper
bearing shells.
4.
Apply coat of lubricating oil to upper bearing
shells (11) after installation.
5.
Apply coat of lubricating oil to front crankshaft bearing journal (25), main bearing journals (12 and 13), and rear
crankshaft bearing journal (26).
6.
Using a suitable lifting device, position crankshaft (2) on engine block (1).
7.
Push crankshaft (2) to front and install thrust washer (18).
8.
Push crankshaft (2) to rear and Install other thrust washer (18).
TA704964
5-84