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Home >> Jeep >> 1996 >> Grand Cherokee Limited, 5.2 Y >> Repair and Diagnosis >> External Pages >> Different car >> Section 187 (2.5L 4-CYL - VIN [P]) >> Engine Oiling >> Oil Pump >> Inspection

Oil Pump: Inspection

WARNING: This page is about a different car, the 1995 Jeep Wrangler and 1994 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspect for wear and damage. Place Plastigage across full width of each gear. Temporarily install cover, and tighten bolts to 70 INCH lbs. (8 N.m). Remove cover. Examine Plastigage to determine end clearance.
  2. Rotate gears, and measure clearance between each tooth and oil pump body, directly opposite point of mesh. Replace oil pump if not within specification. 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)