Wrangler L4-150 2.5L VIN P MFI (1993)
Oil Pump: Service and Repair
Inspection
Fig 13 - Checking Oil Pump Gear End Clearance
Fig 14 - Checking Oil Pump Gear To Body Clearance
Fig 15 - Installing Oil Pump Pickup Screen & Tube Assembly
1.
Remove oil pump cover retaining screws, then remove cover from pump body.
2.
Check gear end clearance as follows:
a.
Place straightedge across ends of gears and pump body.
b.
Check clearance using a suitable feeler gauge.
c.
Clearance should be .002 to .006 inch. If clearance is not within limits, replace oil pump assembly.
3.
Check gear to pump body clearance as follows:
a.
Insert a suitable feeler gauge between gear tooth and pump body.
b.
Clearance should be .002 to .004 inch. If clearance is not within limits, replace idler gear, idler shaft and drive gear assembly.
4.
If pressure relief valve is to be checked, move pickup tube and screen assembly out of way. Remove spring retainer, spring and oil pressure relief
valve plunger. Check pressure relief valve components for binding and clean or replace as necessary. After reinstalling relief valve components,
install a replacement pickup tube and screen assembly. When replacing relief valve plunger, ensure correct size is installed. Plungers are available
in standard size and .010 inch oversize.
5.
If a replacement pickup tube is to be installed, apply a light coating of Permatex No. 2 sealant or equivalent to end of tube. Install pickup tube and
screen using tool No. J-21882.