Section XIV. EXHAUST SYSTEM
3-54. General
The engine exhaust system includes the ex-
haust tube, muffler and exhaust manifold. The
exhaust gases are discharged from the en-
gine through the exhaust manifold and muffler
to the outside of the unit enclosure.
a. Removal and Installation. Remove and in-
as illustrated in figure 3-31.
b. Cleaning and Inspection.
(1) Clean all corrosion and scale from
exhaust tube. Remove corrosion from muffler
and manifold with a wire brush.
(2) Inspect all parts for holes, cracks,
bends, dents, distortion, or other damage. Re-
place all damaged parts.
Section XV. CONTROLS AND INSTRUMENTS
(1) Disconnect terminal leads or cables
3-56. General
a. The controls and instruments located on
from rear of control panel.
the panel consists of temperature indicator,
(2) Remove mounting hardware.
various switches, fuel and water indicators,
(3) Remove control or instrument.
oil pressure indicator, time totalizing meter,
d. Cleaning and Inspection.
(1) Clean all parts with a solvent-damp-
meters, and wiring harness.
ened cloth. Dry thoroughly.
(2) Inspect instruments and switches for
install control panel.
c. Removal and Installation. Remove and in-
corroded terminals, broken glass, wear, o r
other defects. Replace all damaged parts.
stall controls and instruments as follows:
ENGINE
Section XVI.
(1) Clean cylinder head with approved
357. General
solvent. Dry thoroughly.
The only parts of the engine assembly which
(2) Inspect cylinder head for cracks or
may be replaced by organizational mainte-
other damage. Replace cylinder head if dam-
nance are the cylinder head, valve tappet cover
aged; install new gasket.
assembly, and adjustment of valve lifters.
c. Installation.
(1) Install cylinder head as illustrated in
3-58. Cylinder Head
a. Removal.
(1) Remove oil filter and bracket (para
(2) Tighten cylinder head bolts in se-
quence shown in figure 3-33.
(3) Install thermostat housing, spark
(2) Remove spark plugs and leads (para
plugs, and oil filter and bracket.
(3) Remove thermostat housing (para
3-59. Valve Tappet Cover
a. Removal.
(4) Remove cylinder head as illustrated
(1) Remove carburetor (para 3-24).
in figure 3-32.
(2) Remove manifold (para 3-55).
b. Cleaning and Inspection.
