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Installation - continued - TM-10-3930-673-340167
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Installation - continued - TM-10-3930-673-340169
TM 10-3930-673-34
3-8. CRANKSHAFT REPLACEMENT/REPAIR (CONT)
NOTE
If clearance exceeds tolerance listed
below proceed to Steps (m) and (n).
If clearance does not exceed
tolerance proceed to Step (3)(h).
(l)
Remove and measure plastigage.
Main bearing clearance must not
exceed 0.00474 in. (0.120 mm). If
bearing clearance exceeds clearance
measurement, use appropriate
oversize bearings.
(m) Remove lower bearing halves (14)
from bearing caps (13).
(n)
Lift crankshaft (16) from cylinder
block (4) far enough to remove upper
bearing halves (18) and thrust
bearing (19). Be careful that
connecting rods do not scratch
crankshaft.
(3)
Install upper and lower bearing
halves (14 and 18).
TR01174
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.
(a)
If removed, install 14 ring dowels (16) in bearing caps (13).
(b)
Place lower bearing halves (14) in bearing caps (13) with tab inserted in cap groove.
(c)
At main bearing positions (1 through 5, and 7), align tab of upper bearing half (18) with
groove in bearing bore (cylinder block), and press bearing half into place.
(d)
Align tab of thrust bearing (19) with groove in cylinder block at main bearing position (6) and
press thrust bearing into place.
3-66

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