Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA20043.5RLREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 7 (3.5L V6)ENGINE OILINGOIL PUMP ASSEMBLYINSPECTION
2004 Acura 3.5RL
Oil Pump Assembly: Inspection
2004 Acura 3.5RLSECTION Inspection
WARNING: This page is about a different car, the 2002 Acura MDX and 2001 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.
- Using feeler gauge, check inner-to-outer rotor radial clearance. If clearance exceeds service limit, replace oil pump assembly. See OIL PUMP table under ENGINE SPECIFICATIONS.
- Using straightedge and feeler gauge, check housing-to-rotor axial clearance. If clearance exceeds service limit, replace oil pump assembly.
- Using feeler gauge, check housing-to-outer rotor radial clearance. If clearance exceeds service limit, replace oil pump assembly.
- Inspect both rotors and pump housing for scoring or other damage. Replace parts as needed. Remove old oil seal from oil pump. Gently tap NEW seals into place using appropriate driver. Ensure seals bottom in grooves on pump.
- Apply engine oil to pump rotors. Reassemble oil pump. Apply liquid thread lock to pump housing screws, and install cover. Ensure pump rotates freely.
OIL PUMP
| Application | In. (mm) | |
|---|---|---|
| Housing-To-Outer Rotor Radial Clearance | ||
| Standard | .0055-.0074 (.14-.19) | |
| Service Limit | .008 (.20) | |
| Housing-To-Rotor Axial Clearance | ||
| Standard | .0008-.0027 (.02-.07) | |
| Service Limit | .005 (.13) | |
| Inner Rotor-To-Outer Rotor Radial Clearance | ||
| Standard | .0015-.0062 (.04-.16) | |
| Service Limit | .008 (.20) | |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.