Repair or replace a badly damaged
engine oil pan from the engine.
Engine Oil Pan Reassembly and Installation
disassemble the engine oil pan.
Engine Oil Pan Cleaning, Inspection, and
reassemble the engine oil pan in the reverse order.
Cleaning. Clean all parts of the oil pan in an
approved cleaning solvent.
engine oil pan on the engine.
Inspection and Repair.
Install the engine housing (TM 53820-
Inspect the oil pan and access cover
plate for dents, cracks, and holes.
Replace all gaskets.
Section XV. ENGINE OIL PUMP ASSEMBLY
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.
Engine Oil Pump Assembly Removal and
Remove the engine assembly (par.
Remove the engine housing (TM
Figure 27. Engine oil pump assembly, removal and
engine oil pump assembly from the
Engine Oil Pump
Inspection, and Repair
Refer to figure 28 and
Cleaning. Clean all parts of the oil pump in
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
Inspection and Repair-.
the body (23) as an assembly and
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