TM 5-3805-261-34
ENGINE MAINTENANCE. (cont)
13-5.
Crankshaft Main Bearings. (Sheet 4 of 12)
REMOVAL (Front, Center and Rear Main
Bearings and Thrust Bearings) (cont)
CAUTION
Crankshaft must be rotated in
direction of normal engine
rotation when removing main
bearings. Engine rotation is
counterclockwise when viewed
from rear. Failure to follow
this procedure could result
in damage to block,
crankshaft, or both.
11.
Rotate crankshaft and tool
against upper main bearings (6)
in direction of normal engine
rotation.
12.
Remove and discard upper half of
three main bearings (6, Figure
13-19).
CLEANING
Clean all parts. Refer to Chapter 2.
INSPECTION (Front, Center and Rear Main Bearings)
1.
Coat three new lower main
bearings (4, Figure 13-20) with
clean engine oil.
2.
Install in crankshaft bearing
caps (3) with bearing tab toward
tab locator in block.
Go to Sheet
5
13-24
Figure 13-19.
Figure 13-20.
