(4)
Repair or replace a badly damaged
(3)
Refer to figure 25 and remove the
engine oil pan from the engine.
pan.
Disassembly.
Refer to figure 26 and
b.
91.
Engine Oil Pan Reassembly and Installation
disassemble the engine oil pan.
Reassembly.
Refer to figure 25 and
a.
90.
Engine Oil Pan Cleaning, Inspection, and
reassemble the engine oil pan in the reverse order.
Repair
b.
Installation.
Cleaning. Clean all parts of the oil pan in an
a.
(1)
Refer to figure 25 and install the
approved cleaning solvent.
engine oil pan on the engine.
b.
Inspection and Repair.
(2)
Install the engine housing (TM 53820-
205-20/2).
(1)
Inspect the oil pan and access cover
plate for dents, cracks, and holes.
(3)
Install the engine assembly (par. 30).
(2)
Replace all gaskets.
(3)
Inspect all
threaded
portions
for
damage.
Section XV. ENGINE OIL PUMP ASSEMBLY
92.
General
The engine oil pump assembly is a gear-type
pump that is driven by the camshaft. The oil pump is
located in the crankcase of the engine on the center
main bearing. The oil pressure relief valve is an integral
part of the oil pump and may be adjusted through the
access hole in the oil pan. Attached to the oil pump is a
floating-type screen which filters the oil as it is picked up
by the oil pump.
93.
Engine Oil Pump Assembly Removal and
Disassembly
a.
Removal.
(1)
Remove the engine assembly (par.
(2)
Remove the engine housing (TM
(3)
Remove the engine oil pan (par. 89).
Figure 27. Engine oil pump assembly, removal and
(4)
Refer to figure 27 and remove the
installation.
engine oil pump assembly from the
94.
Engine Oil Pump
Assembly
Cleaning,
engine.
Inspection, and Repair
Disassembly.
Refer to figure 28 and
b.
Cleaning. Clean all parts of the oil pump in
a.
disassemble the engine oil pump assembly.
an approved cleaning solvent. All gaskets removed
Note. The shaft (16), gears (17 and
must be discarded and replaced.
18) and key (19) are removed from
b.
Inspection and Repair-.
the body (23) as an assembly and
(1)
Inspect the gears and pump body for
then the gears and key are removed
correct clearance. Clearance should
from the shaft.
be from 0.001 to 0.003 in., and gears
AGO 3456A
60
