Dodge ram truck 3500 1996 Service Manual page 1109

BR
5.9L ENGINE I - 119
CLEANING AND INSPECTION (Continued)
OIL PAN
CLEMMING
Clean the block and pan gasket surfaces.
Trim, or remove excess sealant film in the rear
main cap oil pan gasket groove. DO NOT remove
the sealant inside the rear m a i n cap slots.
If present, trim excess sealant from inside the
engine.
Clean oil pan in solvent and wipe dry with a clean
cloth.
Clean oil screen and pipe thoroughly in clean sol­
vent. Inspect condition of screen.
INSPECTION
Inspect oil drain plug and plug hole for stripped or
damaged threads. Repair as necessary.
Inspect oil pan mounting flange for bends or distor­
tion. Straighten flange, i f necessary.
OIL P U i P
INSPECTION
Mating surface of the oil pump cover should be
smooth. Replace pump assembly i f cover is scratched
or grooved.
Lay a straightedge across the pump cover surface
(Fig. 60). I f a 0.038 mm (0.0015 inch) feeler gauge
can be inserted between cover and straightedge,
pump assembly should be replaced.
STRAIGHT E D G E
COWER
Fig. 60 Checking Oii Pump Cover Flatness
Measure thickness and diameter of OUTER rotor.
If outer rotor thickness measures 20.9 mm (0.825
inch) or less or i f the diameter is 62.7 mm (2.469
inches) or less, replace outer rotor (Fig. 61).
If inner rotor measures 20.9 mm (0.825 inch) or
less, replace inner rotor and shaft assembly (Fig. 62).
RH176
Fig. 61 Measuring Outer Rotor Thickness
RHl
77
Fig. 62 Measuring Inner Rotor Thickness
Slide outer rotor into pump body. Press rotor to the side
with your fingers and measure clearance between rotor and
pump body (Fig. 63). If clearance is 0.356 mm (0.014 inch)
or more, replace oil pump assembly.
OUTER ROTOR
PUHP BODY
Fig. 63 Measuring Outer Rotor Clearance in
Housing