Pump - Oil: Inspection
WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
DO NOT inspect the oil relief valve assembly. If the oil relief valve is suspect, replace the oil pump.
| 1 - STRAIGHT EDGE |
| 2 - FEELER GAUGE |
| 3 - OIL PUMP COVER |
- Disassemble oil pump. (Refer to ENGINE/LUBRICATION/OIL PUMP - DISASSEMBLY) .
- Clean all parts thoroughly. Mating surface of the oil pump housing should be smooth. Replace pump cover if scratched or grooved.
- Lay a straightedge (1) across the pump cover (3) surface. If a 0.025 mm (0.001 in.) feeler gauge can be inserted between cover and straight edge, cover should be replaced. See Fig 1.
- Measure thickness and diameter of outer rotor. If outer rotor thickness measures 14.299 mm (0.563 in.) or less or if the diameter is 79.78 mm (3.141 inches.) or less, replace outer rotor. See Fig 2.
- If inner rotor measures 14.299 mm (0.563 in.) or less replace inner rotor. See Fig 3.
1 - FEELER GAUGE 2 - OUTER ROTOR - Slide outer rotor (2) into body, press to one side with fingers and measure clearance between rotor and body. If measurement is 0.39 mm (0.015 inch.) or more, replace body only if outer rotor is in specifications. See Fig 4.
1 - FEELER GAUGE 2 - OUTER ROTOR 3 - INNER ROTOR - Install inner rotor into body. If clearance between inner (3) and outer rotors (2) is 0.20 mm (0.008 inch.) or more, replace both rotors. See Fig 5.
1 - STRAIGHT EDGE 2 - FEELER GAUGES - Place a straightedge (1) across the face of the body, between bolt holes. If a feeler gauge of 0.077 mm (0.003 in.) or more can be inserted between rotors and the straightedge, replace pump assembly See Fig 6.ONLY if rotors are in specs.
- Assemble oil pump. (Refer to ENGINE/LUBRICATION/OIL PUMP - ASSEMBLY) .