6-11. OIL PUMP, FILTERS, AND COOLER MAINTENANCE (Continued).
Compressed air used for cleaning or drying
can create airborne particles that may enter
the eyes. Pressure shall not exceed 30 psi
(206 kPa). Wearing of goggles is required to
avoid injury to personnel.
(4) Dry all parts with compressed air.
(5) Visually inspect the inlet and outlet pas-
sages in the filter base for restrictions.
(6) Visually inspect the by-pass valve for wear
or damage. Replace if necessary.
(7) Check by-pass valve spring using a valve
spring load tester. Free length of 2.075 in
(52.71 mm) and a test length of 0.927 in
(23.55 mm) under 6.12 ft-lb (27.2 N.m)
should be maintained. Replace if necessary.
a. Lubricating oil pump installation.
(1) Press a new oil seal into the pump housing.
(2) Install a new seal washer with the larger
diameter facing out (toward pulley), onto
(3) Install a new O-ring into the groove in the
crankcase front cover; then install the plate.
(4) Install the inner and outer rotors onto the
(5) Using the new O-ring in the groove in the
housing, position the outer rotor in the
housing and install the housing onto the
crankcase front cover.
(6) Secure the housing to the cover.
b. Oil filters installation.
(1) Install the valve and spring into the bore of
the filter base. Install the plug and torque to
50 ft-lbs (67.8 N.m).
(2) Using a new gasket, install the filter base
onto the crankcase. Secure in place with the
hardware previously removed.
(3) Connect the turbocharger oil supply line to
(4) Lubricate filter gasket with oil (Appendix
D, Item 37) hand torque filter 1/2 to 3/4
turn after gasket contacts filter head. Do
not over torque.
c. Oil cooler installation.
(1) Install new O-rings on tubes from cooler to
(2) Using new gaskets, install the oil cooler to
d. Install vibration damper (paragraph 6-7).