2.4L DOHC Engine: Pump-Oil: Inspection

Fig 1: Checking Oil Pump Cover Flatness

Courtesy of DAIMLERCHRYSLER CORP.

1 - STRAIGHT EDGE

2 - FEELER GAUGE

3 - OIL PUMP COVER

1. Inspect the mating surface of the oil pump. Surface should be smooth. Replace pump cover if scratched or grooved.
2. Lay a straightedge (1) across the pump cover (3) surface. See Fig 1. If a 0.025 mm (0.001 in.) feeler gauge (2) can be inserted between cover and straight edge, cover should be replaced.
   Fig 2: Measuring Outer Rotor Thickness

   Courtesy of DAIMLERCHRYSLER CORP.
3. Measure thickness and diameter of outer rotor (1). If outer rotor thickness measures 10.699 mm (0.421 in.) or less, or if the diameter is 85.924 mm (3.383 in.) or less, replace outer rotor (1). See Fig 2.
   Fig 3: Measuring Inner Rotor Thickness

   Courtesy of DAIMLERCHRYSLER CORP.
4. If inner rotor (1) measures 10.699 mm (0.421 in.) or less replace inner rotor (1). See Fig 3.