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 TM 5-4320-258-34
c.
Reassembly and Installation.
b.
Cleaning and Inspection.
(1) Reassembly is the reverse of
(1) Discard and replace all gaskets.
disassembly. Use new gaskets. Refer to figure 4-6.
(2) Clean the intake manifold and heat
When tightening the manifold mounting nuts, torque
control valve and related parts with cleaning solvent
them to 25 to 30 foot-pounds.
(FED. Spec. P-D-680). Dry thoroughly.
(3) Clean the exhaust manifold with a wire
(TM 5-4320-258-12).
brush.
Remove greasy or gummy deposits with
(3) Install the carburetor (TM 5-4320-258-
cleaning solvent.
12).
(4) Inspect the intake and exhaust
(4) After the engine has been run at
manifolds for cracks, distortion, broken mounting
operating temperature and has cooled, recheck the
flanges, damaged threads, and other damage; replace
torque of the mounting nuts. If necessary, retighten
damaged manifolds.
them to 25 to 30 foot-pounds torque.
(5) Inspect the heat control valve parts for
4-6.
Oil Pan and Filler Blocks
corrosion and burning. Check the fit of the heat control
a. Removal.
valve shaft in the bushings. There shall be no binding,
nor shall there be excessive bushing-to-shaft play.
(1) Remove the drain plug (1, fig. 4-7) and
Replace bushings or shaft if necessary to correct
drain the engine oil into a suitable container. Remove
defects.
the oil drain piping (items 2 through 5).
(6) Remove and replace any damaged
studs.
KEY to fig. 4-7:
1.
Oil drain plug
2.
Gasket
3.
Coupling
4.
Nipple
5.
Elbow
6.
Cap screw
7.
Lock washer
8.
Oil pan
9.
Oil pan gasket
10.
Cap screw
11.
Lock washer
12.
Front filler block seal
13.
Front filler block
14.
Cap screw
15.
Lock washer
16.
Rear filler block seal
17.
Rear filler block
18.
Oil guard seal
19.
Rear oil guard
4-11
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