( 2 ) Inspect inlet pipe for deep dents and
formed on the inlet side of the pump and oil is
drawn from the crankcase through the oil pump
( 3 ) Inspect mounting hardware and screen
screen and inlet pipe into the rotor compartment of
assembly for damage.
the oil pump.
(1) Install inlet pipe and oil pump screen (fig.
(1) Drain the engine oil and remove the oil pan
(2) Install oil pan (para 3-24).
(2) Refer to figure 3-2B and remove the inlet
( 3 ) Refer to current lubrication o r d e r a n d
pipe and oil pump screen.
service the engine lubrication system.
c. Disassembly. Refer to figure 3-49 and
disassemble the oil pump screen and inlet pipe.
(1) Inspect the inlet pipe and screen for
evidence of clogging.
7 Tube assembly
Figure 3-49. Oil pump screen and inlet pipe, disassembly and reassembly.
3-26. Piston, Rings, Connecting Rod, and
spray. Each piston is fitted with six piston rings.
Four compression rings are placed above the piston
pin and two, three piece oil-control rings are placed
a. General. The top of the piston forms the
below the pin to scrape off excess oil thrown onto
c o m b u s t i o n chamber bowl and is designed to
the cylinder liner. The connecting rod connects the
compress the air into close proximity to the fuel