TM 10-4320-315-24
4-13. MAINTENANCE OF CRANKSHAFT - (Cont)
c. INSTALL.
(1)
Install crankshaft gear (7) and matched pin (8) on crankshaft (5), with identification mark on gear facing away
from crankshaft.
(2)
Insert bearing shells (4 and 6) in crankcase bores and in bearing caps (3).
(3)
Lightly coat thrust ring halves (10) with grease. Install smooth side of thrust ring halves in first bearing bore
of crankcase.
(4)
Install thrust ring halves (9) on first bearing cap, with smooth side of thrust ring against bearing cap.
(5)
Coat crankshaft (5) of journals with oil.
(6)
Install crankshaft (5) in crankcase.
(7)
Install bearing caps (3) and screws in crankcase with flat washers (2) and bolts (1). Ensure slot (11) between
bearing cap and bearing shell is in the same location as when removed.
NOTE
Start torque at center bearing cap. Work from side to side with end bearing caps torqued last.
(8)
Torque bearing capscrews to 22 ft•lbs (29.8 N•m).
(9)
Using angle-of-turn indicator tighten bearing capscrews 40°. Tighten again to 65°.
(10)
Push crankshaft toward front of engine.
NOTE
Clearance can be adjusted by removing bearing cap and replacing thrust ring halves with
appropriate size thrust ring halves.
(11)
Measure end clearance at number one bearing. Correct clearance is 0.0055-0.0117 in. (0.1397-0.2972
mm).
4-30
