TM 5-4310-379-14
5-23. Crankshaft Group (Cont).
(2)
Installation. (figure 5-30).
(a)
Install key (1), crankshaft gear (2) and oil slinger (3) on crankshaft (4).
(b)
Install two upper thrust washers (5) and three upper bearing shells (6).
(c)
Aline the timing marks "X" on the camshaft and balance shaft gears.
(d)
Lubricate crankshaft journals and install crankshaft (4) in place so that timing mark 'O" on crankshaft
timing gear alines with timing mark "O" on camshaft gear.
(e)
Install two lower thrust washers (7) on bearing cap (8).
(f)
Install three lower bearing shells (9) in bearing caps (8).
NOTE
If the bearings have been installed properly, the crankshaft will turn freely with all of main bearing
cap bolts drawn to the specified torques.
End play should be .004-.014 in. (.010-.035 cm) with new parts or a maximum of .018in. (.045 cm)
with used parts.
(g)
Install three bearing caps (8) and secure with six bolts (10). Torque bolts to 180-190 Ib-ft (244-258
Nm).
(h)
Using dial indicator, check the crankshaft end play by moving crankshaft toward gage with a pry bar.
Keep constant pressure on pry bar and set dial indicator to zero. Then remove and insert pry bar on
other side of bearing cap. Force crankshaft in opposite direction and note the amount of end play on
dial.
(i)
Install front cover (11) with gasket (12) and secure with eighteen bolts (13) and lockwashers (14).
(j)
Slide oil seal spacer (15) over end of crankshaft and push through oil seal (16) and against oil slinger
(3).
(k)
Install pulley (17) and key (18) and secure with bolt (19) and washer (20). Torque bolt to 290-310 Ib-
ft (393-421 Nm).
FOLLOW-ON MAINTENANCE
(1) Install alternator (para. 3-33).
(2) Install piston and connecting rod (para. 5-20).
(3) Install flywheel housing (para. 4-20).
(4) Install engine assembly (para. 3-13).
Change 1 5-98
