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 TM 10-3930-660-24-2
CRANKSHAFT MAINTENANCE - CONTINUED
0271 00
INSTALLATION - CONTINUED
CAUTION
Be sure cylinder block bearing bores, backsides of bearings, and inner surface of bearing caps are clean and
dry. Oil on these areas could cause less heat transfer between the bearings and the block which, in turn,
could cause overheated bearings.
16.
If removal was necessary, install fourteen ring dowels (16).
17.
Place new lower bearing halves (15) in bearing caps (13) with tab inserted in cap groove.
18.
At main bearing positions (1 thru 5 and 7), align tab of upper bearing half (17) with groove in bearing bore (cylinder
block), and press bearing half into place.
19.
Align tab of thrust bearing (18) with groove in cylinder block at main bearing position 6, and press thrust bearing into
place.
20.
Apply lubriplate to the inside surfaces of the upper and lower bearing halves and thrust bearing.
21.
Slowly lower crankshaft into cylinder block. Be care-
A
ful not to scratch the crankshaft journals.
22.
Check that the crankshaft gear (1)-to-camshaft gear
(2) timing marks are aligned at point "A", then allow
crankshaft to firmly rest against the upper main bear-
ing halves.
1
2
409-898
23.
Install seven bearing caps (13) and fourteen capscrews (12). The number of the bearing caps must correspond to the
numbers in the cylinder block and they must be towards the oil cooler side of the engine.
24.
The main bearing capscrews (13) must be tightened
FLYWHEEL
evenly in a series of three steps, and in the sequence
12
shown in this illustration. The torque value for each
13
step is shown.
7
6
5
FAN
4
3
409-913
0271 00-11
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