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TM 10-3930-638-24&P
4-2. ENGINE MAINTENANCE (cont)
d. Crankshaft and Main Bearing (cont}.
7
STEP
LOCATION
ITEM
ACTION -
REMARKS
INSPECTION (cont)
(con:t)
8
Main bearing
Main bearing liners
a. Remove
Slide out
caps (4, 5,
(11, 12, and 14)
and 7)
b. Inspect
Inspect for cracks, scoring, pitting, flaking,
or signs of overheating. Check liner back
for bright spots. Replace if any of these
conditions observed
9
Main bearing caps
Inspect
Check for cracks, damage, wear, scoring,
(4, 5,6 and 7)
and pitting. Replace if any of these con-
ditions observed
NOTE
Perform step 10 for each main bearing cap (4, 5,6, or 7) requiring
replacement. Proceed to installation (step 11) if original main
bearing caps (4, 5,6 or 7) are being installed.
10
Cylinder block,
a. Replacement main
Position
In correct location. Be sure lock notches
bottom
bearing cap (4, 5,
are on same side as shown
6, or 7)
4-30
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