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TM 9-2330-398-24
4-1.
ENGINE ASSEMBLY REPAIR (continued).
14.
Install lower half of center bearing (95) in lower center main bearing housing (96). Install Upper half of center
bearing (95) in upper center main bearing housing (94). Set upper center main housing (94) on crankshaft (10)
and rotate it into place. Install two pins (99) and lower center main bearing housing (96) on cylinder block (38) with
two bolts (98) and washers (97). Tighten bolts (98) to specifications in Table 4-2.
15.
Install one new gasket (89) on each side of shim (90) and place on rear bearing plate (86).
NOTE
• Before tightening screws, make sure that thrust washers are in position
over locating pins.
• Before installing bearing plate, tape keyway and sharp edges on
crankshaft to protect oil seal during installation.
16. Install rear bearing plate (86), two gaskets (89), and shim (90) on cylinder block (38) with six new self-locking bolts
(101) and new lockwashers (100).
NOTE
• If more than 0.010 inch total thickness is required, use steel shim of
proper thickness and 0.005-inch thick gasket on each side of shim. This
avoids excessive gasket compression and maintains bolt torque.
17. Check end play of crankshaft (10). Use enough shims (90) to provide 0.010 to 0.015 inch end play.
Table 4-2. Torque Values
Item
Torque Range (Lb.-Ft.)
Minimum
Maximum
Center main bolt
97
102
Connecting rod bolt
27
29
Rocker-box cover
8
10
Cylinder head bolt
44
46
Exhaust manifold nuts
13
'15
Flywheel mounting screw
65
70
Hub to flywheel screws
17
21
Fuel pump mounting screws
15
20
Gearcase cover
15
20
Glow plug
10
15
Injection nozzle mounting screws
20
21
Injection pump mounting screws
15
16
Intake manifold
13
15
Oil base mounting screws
45
50
Oil pump mounting screws
15
20
Rear bearing plate
40
45
Rocker arm nut
4
lot
Rocker arm stud
35
40
*
Exhaust manifold nuts must be tightened evenly.
‚
This torque is due to friction between the threads only and locks the
nuts in place. Use rocker arm nut to adjust valve lash.
4-24
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