Oil Pump Assembly: 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) | |