Chrysler neon 1997 Service Manual page 1216

PL
CLEANING AND INSPECTION (Continued)
OIL PUMP
(1) Clean all parts thoroughly. Mating surface of
the oil pump should be smooth. Replace pump cover
if scratched or grooved.
(2) Lay a straightedge across the pump cover sur-
face (Fig. 101). If a 0.076 mm (0.003 inch.) feeler
gauge can be inserted between cover and straight
edge, cover should be replaced.
Fig. 101 Checking Oil Pump Cover Flatness
(3) Measure thickness and diameter of outer rotor.
If outer rotor thickness measures 7.64 mm (0.301
inch.) or less (Fig. 102), or if the diameter is 79.95
mm (3.148 inches) or less, replace outer rotor.
Fig. 102 Measuring Outer Rotor Thickness
(4) If inner rotor measures 7.64 mm (.301 inch) or
less replace inner rotor (Fig. 103).
(5) Slide outer rotor into pump housing, press to
one side with fingers and measure clearance between
rotor and housing (Fig. 104). If measurement is 0.39
mm (0.015 inch.) or more, replace housing only if
outer rotor is in specification.
Fig. 103 Measuring Inner Rotor Thickness
Fig. 104 Measuring Outer Rotor Clearance in
INNER FEELER GAUGE ROTOR
(6) Install inner rotor into pump housing. If clear-
ance between inner and outer rotors (Fig. 105) is .203
mm (.008 inch) or more, replace both rotors.
Fig. 105 Measuring Clearance Between Rotors
2.0L SOHC ENGINE
OUTER ROTOR
Housing
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