Oil Pump Chain

Removal
1. Disconnect negative cable at battery.
2. Drain engine oil.
3. Drain coolant.
4. Remove timing chain cover.
5. Remove LH bank 2nd timing chain.
6. Remove 1st timing chain.





7. Put match marks (3) to oil pump chain (1) and oil pump sprocket (2).
8. Remove oil pump chain guide.
9. Remove oil pump chain.
10. Remove oil pump drive sprocket.

Installation





1. Install oil pump drive sprocket (2) as shown in figure.





2. Install oil pump chain (1) by aligning match marks (3) on oil pump chain (1) and oil pump sprocket (2).
3. Install oil pump chain guide (1) and hand-tighten oil pump chain guide bolts.





4. To take up slack of oil pump chain, push center of oil pump chain guide with a force of 0.5 to 0.6 N (50 - 60 g, 0.11 - 0.13 lbs.) then tighten oil pump chain guide bolts to specified torque.
5. Install 1st timing chain.
6. Install LH bank 2nd timing chain.
7. Install timing chain cover.
8. Install oil pan.
9. Install front differential housing.
10. Install P/S system.
11. Install cooling system.
12. Install intake manifold with throttle body.
13. Refill cooling system with coolant, front differential with gear oil, P/S system with specified fluid and engine with engine oil.
14. Check wheel alignment.
15. Verify that there is no fuel leakage, water leakage and oil leakage at each connection.

Inspection

Oil Pump Chain Guide





Check shoe for wear or damage.

Oil Pump Drive Sprocket





Check teeth of sprocket for wear or damage.

Oil Pump Sprocket





Check teeth of sprocket for wear or damage.

Oil Pump Chain





Check oil pump chain for wear or damage.