TM 10-4320-315-24
4-9.
MAINTENANCE OF CONNECTING RODS - (Cont)
Figure 4-11. Connecting Rods
(7)
Using micrometer, measure inside diameter of connecting rod bearing bore at points 1 and 2 in the
planes of a and b (Figure 4-12). Correct measurement is 2.6792-2.6799 in. (68.0-68.019 mm).
(8)
Replace a defective connecting rod.
(9)
Remove connecting rod capscrews and cap.
(10)
Check connecting rod bearing clearance as follows:
(a)
Measure crankshaft journals. Correct measurement is 2.485-2.521 in. (63.071-63.990 mm).
(b)
Install bearing shell (5, Figure 4-11) in bore of connecting rod (4).
(c)
Install bearing shell (5) in rod cap (2).
(d)
Install rod cap (2) on connecting rod (4) with capscrews (1).
(e)
Torque capscrews to 22 ft • lbs (29.8 N•m).
4-20
