TM 9-4310-397-14
6-11. CRANKSHAFT, PULLEY, IDLER GEARS, AND MAIN BEARINGS INSPECTION, REPAIR AND
REPLACEMENT.
This task covers:
a.
Removal
b.
Inspection
c. Repair
d.
Installation
INITIAL SETUP
Tools:
Equipment Conditions:
Automotive Maintenance and Repair
Oil pump removed. (See para 6-8.)
Item 2, Section III, Appendix B
Rocker arm cover, rocker arm assembly, push rods,
and cam followers removed. (See para 6-6.)
Personnel Required:
Fan belt removed. (See para 4-65.)
Fuel injection and transfer pumps removed.
Two
(See para 6-4.)
Timing gear cover, timing gear train (including
camshaft), and front plate removed. (See para 6-9.)
Connecting rod caps removed. (See para 6-11.)
Staring motor removed. (See para 4-66.)
Flywheel and flywheel cover removed.
(See para 6-5.)
a.
Removal.
(1)
Remove main bearings.
NOTE
When crankshaft is to be removed, leave front and rear main bearing caps
installed until all of the connecting rod caps have been removed. Push pistons
and rods away from crankshaft.
(a)
Check main bearing caps for arrows (Figure 6-97, 1) (cast in main bearing cap) and numbers (2) stamped
on cap and oil pan rail. Arrow points toward camshaft side of engine. If there are no numbers, stamp
corresponding numbers on cap and oil pan rail. This will assure correct placing of main bearing caps
during reassembly.
Figure 6-97. Main Bearing Caps
6-81
