Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Oil Pump Assembly






1. Install pressure relief valve and pressure relief valve spring.
2. Install oil pump pressure relief valve plug.
- Torque: 40 Nm (30 ft. lbs.)
3. Lubricate drive and driven rotors with clean engine oil.

IMPORTANT: Align marks on drive and driven rotors.

4. Install drive and driven rotors into pump body.
5. Fill oil pump with petroleum jelly to prim oil pump.

NOTICE: Fill the oil pump cavities with petroleum jelly prior to installation. This will ensure that there is oil pressure immediately on initial start up and will prevent engine damage.





6. Lubricate drive and driven rotors with clean engine oil.
7. Install oil pump gear cover plate screws.
- Torque: 6 Nm (53 inch lbs.)