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 49. TROUBLESHOOTING ENGINE ASSEMBLY - Continued
Malfunction
Probable causes
Corrective action
d.
Defective valve tappet.
--.
d
Remove fuel filter as-
8.
Engine noises -
sembly (par. 117). Re-
Continued.
move fuel injection tube
assemblies (par. 118).
Remove oil filter ele-
ments (par. 119). Re-
move oil filter and oil
cooler housing and tappet
chamber cover (par.
rear sets of rocker arms,
valve rocker arm push
rods, and valve tappets
(par. 132). Replace
damaged tappets. Install
tappets, rocker arm
push rods, and rocker
arm sets (par. 268b
through d). Install-oil
cooler and oil filter
housing and tappet cham-
ber cover (par. 280).
Install fuel injection tube
assemblies (par. 284c).
Install fuel filter assem-
bly (par. 285).
Worn crankshaft and
Remove crankshaft and
e.
e.
--
camshaft gears (par. 98).
camshaft gears.
Inspect and replace when
worn or broken. Install
crankshaft and camshaft
gears (par. 98).
f.
Remove water pump as-
f.
Defective water pump
sembly (par. 77a). Over-
causing engine to
haul water pump (par.
overheat.
water pump assembly
(par. 77d).
a.
--.
a
Crank engine by hand.
(3) Grinding or
Damaged engine acces-
-.
If squealing noise per-
squealing
series.
noise.
sists, check engine
accessories and com-
ponents as follows:
44
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