Figure 32-Continued.
Section XIX. MAIN BEARINGS AND CRANKSHAFT
109.
Main Bearings and Crankshaft Removal and
108.
General
Disassembly
The crankshaft is supported by seven main
bearings. The end and center main bearings are
a. Removal.
different, whereas the four intermediate main bearings
are alike. The front main bearing is polished on one
(1) Remove timing gears and front end plate (par.
side to back up a brass thrust ring, which is installed
between the front main bearing and the first throw of the
crankshaft. Dowel pins in the block locate the bearing
(2)
Remove flywheel housing (par. 105).
caps accurately to the block. The journals of the
crankshaft are hardened to resist wear and scoring.
(3)
Remove connecting rod bearing caps (par.
(4)
Refer to figure 33 and remove the main
bearings, and crankshaft.
68 AGO 8456A
