Oil Pump: Service and Repair

Oil Pump





Removal

1. With the engine in NEUTRAL, position it on a hoist.

2. Remove the engine front cover. For additional information, refer to Engine Front Cover Service and Repair.

3. Drain the engine oil, then install the drain plug.
- To install, tighten to 28 Nm (21 lb-ft).


4. Remove the 4 oil pan-to-bellhousing bolts.

5. Remove the 13 bolts and the oil pan.

6. NOTE: Discard the gasket and clean and inspect the gasket mating surfaces.
Remove the 2 bolts and the oil pump screen and pickup tube.


7. Remove the oil pump drive chain tensioner.
1. Release the tension on the tensioner spring.

2. Remove the 2 shoulder bolts and the tensioner.






8. Remove the chain from the oil pump sprocket.

9. Remove the bolt and oil pump sprocket.

10. Remove the 4 bolts and the oil pump.

Installation

1. NOTE: Clean the oil pump and cylinder block mating surfaces with metal surface prep.
Install the oil pump assembly. Tighten the 4 bolts in the sequence shown in 2 stages:

- Stage 1: Tighten to 10 Nm (89 lb-in).

- Stage 2: Tighten to 20 Nm (177 lb-in).






2. Install the oil pump sprocket and bolt.
- Tighten to 25 Nm (18 lb-ft).


3. Install the chain onto the oil pump sprocket.

4. Install the oil pump drive chain tensioner shoulder bolt.
- Tighten to 10 Nm (89 lb-in).






5. Install the oil pump drive chain tensioner and bolt. Hook the tensioner spring around the shoulder bolt.
- Tighten to 10 Nm (89 lb-in).






6. Install the oil pump screen and pickup tube and the 2 bolts.
- Tighten to 10 Nm (89 lb-in).


7. NOTICE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These tools cause scratches and gouges, which make leak paths. Use a plastic scraping tool to remove traces to sealant.

Clean all mating surfaces with metal surface prep.


8. NOTE: If the oil pan is not secured within 4 minutes of sealant application, the sealant must be removed and the sealing area cleaned with metal surface prep. Allow to dry until there is no sign of wetness, or 4 minutes, whichever is longer. Failure to follow this procedure can cause future oil leakage.
Apply a 2.5 mm (0.09 in) bead of sealant gasket and sealant to the oil pan.






9. Position the oil pan onto the engine and install the 2 rear oil pan bolts finger-tight.

10. Using a suitable straight edge, align the front surface of the oil pan flush with the front surface of the engine block.





11. Install the remaining oil pan bolts.
- Tighten in the sequence shown to 25 Nm (18 lb-ft).






12. Install the 4 oil pan-to-bellhousing bolts.
- Tighten to 48 Nm (35 lb-ft).


13. Install the engine front cover. For additional information, refer to Engine Front Cover Service and Repair.

14. Fill the engine with clean engine oil.