b. Cleaning and Inspection.
(1) Clean oil pump.
(2) Inspect for obvious damage and other
defects. Replace damage or defective pump.
(3) Measure clearance between spur gears
and body. Clearance should be 0.001-to 0.003-inch.
(4) Check end play between spur gears and oil
pump cover. With cover gasket installed, the
clearance should be 0.0015-to 0.006-inch.
(5)Check backlash between spur gears.
Backlash should measure 0.003-to 0.0065-inch.
c. Installation.
NOTE
Be sure to install I/16 inch flat spacer washer
between oil pump mounting and bearing cap.
Failure to do this will cause interference between
oil pump and camshaft.
(1) Refer to figure 5-6 and install oil pump in
reverse order of removal procedure.
(2) Install oil pan (para 5-5).
Figure 5-6. Oil pump removal
Section IV. VALVES AND PISTONS
5-7. Valves, Guides, and Lifters
(3) Remove valves, guides, and lifters as
a. Removal
shown in figure 5-7.
(1) Remove valve lifter cover (TM 10-3950
(4) Disassemble valves, guides, and lifters as
203-20).
shown in figure 5-8.
(2) Remove cylinder head (TM 10-3950-203-
20).
5-6
