Oil Pump Chain

REMOVAL
1. Disconnect negative cable at battery.
2. Drain engine oil.
3. Drain coolant.
4. Remove timing chain cover. Refer to Timing Components; Timing Cover; Service and Repair.
5. Remove LH bank 2nd timing chain. Refer to Timing Chain; Service and Repair; LH (NO.1) BANK 2ND TIMING CHAIN AND CHAIN TENSIONER for removal.
6. Remove 1st timing chain. Refer to Timing Chain; Service and Repair; 1ST TIMING CHAIN AND CHAIN TENSIONER for removal.





7. Put match marks to oil pump chain and oil pump sprocket.
8. Remove oil pump chain guide.
9. Remove oil pump chain.
10. Remove oil pump drive sprocket.

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.

INSTALLATION





1. Install oil pump drive sprocket as shown in figure.





2. Install oil pump chain by aligning match marks on oil pump chain and oil pump sprocket.





3. Install oil pump chain guide 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 lb) then tighten oil pump chain guide bolts to specified torque.
Tightening Torque (c): 11 Nm (1.1 kg-m, 7.5 ft. lbs.)
5. Install 1st timing chain. Refer to Timing Chain; Service and Repair; 1ST TIMING CHAIN AND CHAIN TENSIONER for installation.
6. Install LH bank 2nd timing chain. Refer to Timing Chain; Service and Repair; LH (NO.1) BANK 2ND TIMING CHAIN AND CHAIN TENSIONER for installation.
7. Install timing chain cover. Refer to Timing Components; Timing Cover.
8. Install oil pan, front differential housing, P/S system, cooling system, intake manifold with throttle body and other parts.
9. Refill cooling system with coolant, front differential with gear oil, P/S system with specified fluid and engine with engine oil.
10. Check wheel alignment referring to Wheels, Tires and Alignment.
11. Verify that there is no fuel leakage, water leakage and oil leakage at each connection.