Oil Pump Disassemble and Assemble Disassemble

1. Remove the shaft and retainer.



2. If necessary, remove the oil pump screen.

•	The oil pump screen has a press fit in to the pump cover.

•	Do not remove the screen from the pipe. The pipe and screen are serviced as a complete assembly.




3. Remove the cover bolts.



4. Remove the pump cover.



5. Remove the drive gear and the driven gear. Matchmark the gear teeth for assembly.



6. Remove the following items:

•	The retaining pin

•	The pressure regulator spring

•	The pressure regulator valve

Oil Pump Disassemble and Assemble Assemble

Tools Required

J 21882 Oil Suction Pipe Installer

Important: Replace the pressure relief valve spring when you reuse the oil pump.




1. Install the following items:

•	The pressure regulator valve

•	The pressure regulator spring

•	The retaining pin




2. Coat the drive gear, the driven gear and the housing gear surfaces with clean engine oil.
3. Install the drive gear and the driven gear into the pump body. Align the matchmarks on the gears. Install the smooth side of the gear toward the pump cover.



4. Install the pump cover.



5. Install the cover bolts.

Tighten
Tighten the bolts to 9 N·m (80 lb in).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

6. Inspect the pump for smoothness of operation by turning the oil pump driveshaft by hand.



7. Install the oil pump screen.

7.1.	If removed, replace the oil pump screen. The oil pump screen must have a good press fit into the oil pump body.

7.2.	Mount the oil pump in a soft jawed vise.

7.3.	Apply sealer to the end of the pipe.

7.4.	Use the J 21882 and a soft-faced hammer in order to tap the oil pump screen into the pump body. The screen must align parallel with the bottom of the oil pan when it is installed.




8. Install the shaft and the retainer.