TM 9-2320-272-24-4
5-29. CRANKSHAFT AND GEAR MAINTENANCE (Contd)
Install thrust bearing (11) in No. 4 main bearing seat (13).
5.
Install crankshaft (7) in engine block (14).
6.
NOTE
Perform step 7 if inspection required replacement of lower main
bearings.
Align tangs (4) of seven lower main bearings (1) with slots of main bearing caps (3) and install
7.
seven lower main bearings (1) in main bearing caps (3).
Apply clean engine oil to main bearing journals (6) and install seven main bearing caps (3) on
8.
engine block (14).
Using soft-head hammer, tap main bearing caps (3) until seated against main bearing journals (6).
9.
Apply clean engine oil to threads of fourteen screws (2) and install on main bearing caps (3).
10.
Tighten screws (2) as follows:
11.
a.
Tighten screws (2) 125 lb-ft (170 Nm) in sequence shown. Loosen screws (2).
Tighten screws (2) to 70 lb-ft (95 Nm) in sequence shown.
b.
c.
Using torque angle gauge, tighten screws (2) an additional 45-75.
Rotate crankshaft (7) and check for freedom of movement.
12.
Check crankshaft (7) end play (task a).
13.
5-203
