TM 5-3805-248-23-2
CRANKSHAFT MAIN BEARINGS MAINTENANCE - CONTINUED
0347 00
CENTER AND INTERMEDIATE BEARINGS ADJUSTMENT
1.
Install main bearing removal and installation tool in oil hole in crankshaft journal.
2.
Use clean engine oil to lubricate one of five new upper half main bearings (10) and its corresponding journal on crank-
shaft.
3.
Position one of five new upper half main bearings (10) in cylinder block above crankshaft journal with bearing tab
toward tab locator in block.
CAUTION
When installing upper half main bearings in cylinder block, crankshaft must be rotated in opposite direction
from normal engine rotation. Viewed from rear, turn clockwise. Failure to follow this procedure could result
in damage to block, crankshaft, or both.
4.
Rotate crankshaft clockwise to push one of five new upper half main bearings (10) into position.
5.
Remove main bearing removal and installation tool from oil hole in crankshaft.
6.
Repeat steps 1 through 5 to install remaining four of five new upper half main bearings (10).
ROTATION DIRECTION
FOR INSTALLATION OF
UPPER HALF OF BEARING
10
TOOL
BLOCK
CRANKSHAFT
BEARING TAB
REAR
TOOL
10
394-1147
0347 00-5