TM 5-4320-300-14
6-11. CRANKSHAFT AND FLYWHEEL (CONT)
Location/Item
Action
Remarks
47. Main bearing
Install in their original positions.
caps (inter-
mediate)
48. Thrust washers
Install in their original positions.
(lower half)
49. Main bearing
Install in their original positions. Apply MIL-
If bearings have been
caps (rear)
T-22361 thread compound to bolt threads
installed properly
and bolt head contact area, and tighten bolts
with all main bearing
hand tight. Strike caps sharply with a soft
caps bolted tightly,
hammer to seat them properly. Torque all
the crankshaft will
bolts (except rear main bearing bolts) to 120
turn freely by hand.
to 130 ft lb (163 to 176 N.m) starting with
center bearing cap bolts and working alter-
nately towards both ends of block. Torque
rear main bearing bolts to 40 to 50 ft lb (54
to 68 N.m). Strike both ends of crankshaft
two or three sharp blows with a soft hammer
to ensure proper positioning of rear main
bearing cap. Torque all bearing bolts to 120
to 130 ft lb (163 to 176 N.m).
50. Crankshaft
Install a dial indicator near
end play
crankshaft timing pulley.
check
Check end play by moving
crankshaft toward dial in-
dicator with screwdriver.
Keep a constant pressure
on pry bar and set dial in-
dicator to zero. Move pry
bar to other side of bear-
ing cap. Force the crank-
shaft in opposite direction
and note amount of end
play on dial. The end play
should be 0.004 to 0.011
inch (0.102 to 0.279 mm)
with new parts or a maxi-
mum of 0.018 inch (0.457
mm) with used parts. If
there is insufficient end
play, check rear main
bearing for misalignment.
Check for dirt on thrust
washers. Aline bearing or
replace thrust washers if
needed.
TM 5-4320-300-14
6-108
