MAIN BEARING AND CRANKSHAFT REPAIR (CONT) -726030075

TM 9-2320-360-34-2

19-8.

MAIN BEARING AND CRANKSHAFT REPAIR

(CONT)

(16) Repeat step (15) for crankshaft main bearing

Journals no. 3 (20) and no. 4 (21).

(17) Read runout of main bearing journals (18, 20,

and 21) with dial indicator (3) while assistant

turns screw (14) to turn crankshaft.

(18) Maximum allowable runout for journals (18 and

21) is 0.002 in. (0.05 mm). Maximum allowable

runout for journal (20) is 0.004 in. (0.10 mm).

(19) Remove four screws (10) and two bearing caps

(11 and 12) from crankshaft (2).

(20) Remove lower bearing shell (17) from bearing

cap (11).

NOTE

Tag and mark thrust bearing before

removal.

(21) Remove lower bearing shell (16) and two lower

thrust bearings (22) from bearing cap (12).

19-60