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 TM 5-2410-237-23
CRANKSHAFT AND BEARINGS ASSEMBLY MAINTENANCE - CONTINUED
0245 03
INSTALLATION - CONTINUED
NOTE
Install bearing caps with the part number toward the front of engine. Be sure that the mark on the bearing
cap corresponds with the mark on the cylinder block.
4.
Place main bearing caps (5) in position. Lubricate threads of 14 capscrews (3) and face of washers (4) with clean oil.
Install capscrews and washers. Tighten capscrews to 27-33 lb-ft (37-45 Nm).
CAUTION
Do not use an impact wrench to tighten main bearing cap capscrews or damage may result.
5.
Mark each bearing cap (5) and capscrew (3). Use a
5
wrench to tighten capscrews another 90 degrees.
6.
Use a wrench to remove all capscrews (3) and washers
(4), then remove bearing caps (5).
421-0091
3,4
7.
Remove bearing clearance gage piece and measure for
6
new bearings; the main bearing clearance must be
0.0030 to 0.0065 in. (0.076 to 0.165 mm). Replace the
upper and lower bearing halves if measurement is less
than 0.010 in. (0.25 mm). If satisfactory bearing clear-
ance cannot be achieved, replace engine block.
8.
Lubricate thrust plates (7) with clean oil. Install thrust
plates for the rear main bearing (15) with words
9
"BLOCK SIDE" toward cylinder block (9). Make sure
thrust plate tabs are correctly inserted.
7
15
421-0092
0245 03-9
Change 1
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