Dodge ram truck 3500 1996 Service Manual page 1074

9 - 84 5.2L ENGINE — _ _ _ _ _
C L E A N I N G AND I N S P E C T I O N (Continued)
B R
PISTON PIN BORE DIAMETER
A
PISTON
SIZE
A D!A = PISTON DIAMETER BORE DIAMETER
PISTON
SIZE MIN, mm (IN.)
MAX. min (IN.) MIN. mm (IN.) MAX. mm (IN.)
A
9 9 . 2 8 0 ( 3 . 9 0 8 7 ) 9 9 . 2 9 4 ( 3 . 9 0 9 2 ) 9 9 . 3 0 6 ( 3 . 9 0 9 7 ) 9 9 . 3 1 9 ( 3 . 9 1 0 2 )
B 9 9 . 2 9 4 ( 3 . 9 0 9 2 ) 9 9 . 3 0 6 ( 3 . 9 0 9 7 ) 9 9 . 3 1 9 ( 3 . 9 1 0 2 ) 9 9 . 3 3 2 ( 3 . 9 1 0 7 )
C
9 9 . 3 0 6 ( 3 . 9 0 9 7 ) 9 9 . 3 1 9 ( 3 . 9 1 0 2 ) 9 9 . 3 3 2 ( 3 . 9 1 0 7 ) 9 9 . 3 4 4 ( 3 . 9 1 1 2 )
D 9 9 . 3 1 9 ( 3 . 9 1 0 2 )
9 9 . 3 3 2 ( 3 . 9 1 0 7 )
9 9 . 3 4 4 ( 3 . 9 1 1 2 )
9 9 . 3 5 7 ( 3 . 9 1 1 7 )
E 9 9 . 3 3 2 ( 3 . 9 1 0 7 ) 9 9 . 3 4 4 ( 3 . 9 1 1 2 ) 9 9 . 3 5 7 ( 3 . 9 1 1 7 )
9 9 . 3 7 0 ( 3 . 9 1 2 2 )
J9509-80
Fig. 60 Piston Measurements
Trim or remove excess sealant film in the rear
main cap oil pan gasket groove. DO NOT remove
the sealant inside the rear main 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. 61). I f a 0.038 mm (0.0015 inch) feeler gauge
can be inserted between cover and straightedge,
pump assembly should be replaced.
Measure thickness and diameter of OUTER rotor.
If outer rotor thickness measures 20.9 mm (0.825
8020cd6e
Fig. 61 Checking Oii Pump Cover Flatness
inch) or less or i f the diameter is 62.7 mm (2.469
inches) or less, replace outer rotor (Fig. 62).
Fig. 62 Measuring Outer Rotor Thickness
If inner rotor measures 20.9 mm (0.825 inch) or
less, replace inner rotor and shaft assembly (Fig. 63).
Fig. 63 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. 64). I f clearance