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Page Title:
OIL PRESSURE RELIEF VALVE HOUSING |
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 (2) Inspection. Inspect oil drain plugs (KK)
and oil pan drain hole in oil pan for
damaged threads. Check oil pan gasket
surface for nicks and damage that might
cause an oil leak. Check oil pump drive
gear oil trough (fig. 357) in front por-
tion of oil pan for damage.
A-
3/8-in. hex head plug
B-
Plain washer (gasket)
Oil pressure relief plunger spring
C-
Oil pressure or piston oil cooling relief
D-
plunger
FIGURE 357. FRONT SECTION OF OIL PAN
E-
3/8 x 2 cap screw
SHOWING OIL PUMP IDLER GEAR
F-
3/8- in. lock washer
TROUGH.
Oil pressure relief valve housing assembly
G-
1- 3/8-in. pipe plug
c. Repair. Remove all nicks, raised metal,
2- Oil pressure relief valve housing
and warpage on oil pan gasket surface using a
Housing gasket
H-
fine mill file. Repair damaged drain plug threads
J-
Piston oil cooling relief plunger spring
in pan and on drain plugs (KK). Replace oil pan
when damaged beyond minor repairs.
HOUSING AND RELATED PARTS -
d. Assembly. Loosely install drain plugs
EXPLODED VIEW.
(KK) in threaded holes in oil pan using new
gaskets (JJ).
-- . Cleaning and Inspection.
b
192. OIL PRESSURE RELIEF VALVE HOUS-
(1) Cleaning. Clean oil pressure relief
ING
valve housing (G-2) and components as
directed in paragraph 152c and d.
Note. The key letters shown below in paren-
theses refer to figure 358 except where other-
(2) Inspection. Inspect oil pressure relief
wise indicated.
valve housing (G- 2) for cracks, stripped
threads, nicks, scratches, and burs on
a. Disassembly. Remove plug (A), plain
mounting faces. Check oil passages for
washer (gasket) (B), oil pressure relief plunger
cleanliness and freedom from obstruc-
spring (C), and oil pressure relief plunger (D)
tions. Inspect plunger bores for scoring
from oil pressure relief valve housing assembly
or evidence of wear. Inspect plugs (A)
(G). Remove plug, plain washer (gasket), piston
for damaged threads and cracks. Inspect
oil cooling relief plunger spring (J), and piston
the springs (C and J) for cracks and
cooling relief plunger (D) from oil pressure
wear and against limits specified in
relief valve housing assembly. Remove two
repair and rebuild standards (par. 293).
3/8-inch pipe plugs (G-1) from housing (G-2).
Inspect plungers (D) for cracks, burs,
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