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 c. Cleaning, Inspection, and Repair.
(1) Clean front cover with solvent (FED. SPEC. PD-680) and dry thoroughly.
(2) Inspect for cracks, breaks, missing hardware.
(3) Replace gasket.
(4) Replace a front cover that is damaged beyond repair.
d. Installation.
(1) Install the crankshaft front cover by tightening the bolts in the sequence shown in figure 3-96.
(2) Tighten 3/8" x 24 bolts to 25-30 ft-lbs. and tighten 1/2" x 13 bolts to 80-90 ft-lbs.
3-28. Crankshaft
a. Removal.
(1) Drain engine crankcase TM 55-1905-217- 12 (para 3-2).
(2) Remove engine (para 2-8).
(3) Remove all accessories and assemblies with attaching parts as necessary to mount engine on overhaul stand.
(4) Remove oil pump (para 3-19).
(5) Remove pulley and vibration damper (para 3-22).
(6) Remove the transfer gear assembly and flywheel housing (para 3-23).
(7) Remove the transmission and flywheel (para 3-26).
(8) Remove connecting rod bearing caps (para 3-20).
(9) Remove main bearing caps and shells, and remove thrust washers from each side of rear main bearing (para
(10) Remove the crankshaft front cover (para 3-27).
(11) Remove the crankshaft, including the timing gear at the rear and the oil pump drive gear at the front.
b. Disassembly.
(1) Remove bolts (2, fig. 3-97) and lock- washers (3) and remove the crankshaft gear (4) from the crankshaft.
Key to figure 3-97.
1. Plug
2. Bolt
3. Lockwasher
4. Gear, crankshaft
5. Gear, oil pump drive
6. Key
7. Dowel pin
8. Crankshaft
3-138
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