Oil Pump: Inspection
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1995 Jeep Wrangler, 1995 Jeep Grand Cherokee, 1995 Jeep Cherokee, 1994 Jeep Wrangler, and 1994 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Inspect for wear or damage. Place Plastigage across full width of each gear. Install cover temporarily and tighten bolts to 70 INCH lbs. (8 N.m). Remove cover. Examine Plastigage to determine end clearance. Measure clearance between each tooth and oil pump body directly opposite point of mesh. Replace oil pump if not within specifications. See OIL PUMP SPECIFICATIONS table.
OIL PUMP SPECIFICATIONS
| Application | In. (mm) |
|---|---|
| Gear End Clearance | .002-.006 (.05-.15) |
| Gear-to-Body Clearance | .002-.004 (.05-.10) |