LH (No.1) Bank 2nd Timing Chain and Chain Tensioner

REMOVAL
1. Disconnect negative cable at battery.
2. Drain engine oil.
3. Drain coolant.
4. Remove timing chain cover. Refer to Timing Cover.





5. Turn crankshaft to meet following condition.
^ Key (1) on crankshaft positions as shown.
^ Arrow mark on idler sprocket No.2 (2) points the center of crankshaft.
^ The marks on sprockets (3) match with marks on cylinder head.
Note that this step must be followed for reinstallation of timing chain.





6. Remove timing chain tensioner adjuster No.3. To remove it, slacken LH bank 2nd timing chain by turning intake camshaft counterclockwise a little while pushing back pad.





7. Remove LH bank intake and exhaust camshaft sprocket bolts. To remove it, fit a spanner to hexagonal part at the center of camshaft to hold it stationary.





8. Remove LH bank exhaust camshaft sprocket.

CAUTION: Removing sprocket from camshaft may cause cam to turn, resulting in damage to valve and piston. To prevent this, when removing sprocket, hold camshaft stationary by using a spanner at its hexagonal part.

9. Remove LH bank intake camshaft sprocket.
10. Remove LH bank 2nd timing chain.

INSPECTION
Timing chain guide No.4 and No.5





Check shoe for wear or damage.

Camshaft sprocket





Check teeth of sprocket for wear or damage.

Timing chain





Check timing chain for wear or damage.

Tensioner adjuster No.3





^ Check shoe for wear or damage.





^ Check that latch and tooth surface are free from damage and latch functions properly.

INSTALLATION





1. Check timing mark on crankshaft as shown in figure.





2. Check timing mark on idler sprocket No.2 as shown in figure.





3. Install timing chain guide No.4.
Tightening Torque (a): 11 Nm (1.1 kg-m, 7.5 ft. lbs.)





4. Check that knock-pins of intake and exhaust camshafts are aligned with match marks on cylinder head as shown in figure.





5. Install by aligning match marks on yellow plate of LH bank 2nd timing chain and idler sprocket No.2.





6. Install sprockets to intake and exhaust camshafts by aligning silver plate of LH bank 2nd timing chain, match marks on intake sprocket and exhaust sprocket respectively.

CAUTION: Do not turn camshaft more than necessary. If turned excessively, valve and piston may get damaged.

7. Install LH bank intake and exhaust camshaft timing sprockets, To install it, fit a spanner to hexagonal part at the center of camshaft to hold stationary.
Tightening Torque (b): 80 Nm (8.0 kg-m, 57.5 ft. lbs.)





8. With latch of tensioner adjuster No.3 returned and plunger pushed back into body, insert stopper (pin) into set hole. After inserting it, check to make sure that plunger will not come out.





9. Install timing chain tensioner adjuster No.3.
Tightening Torque
(c): 25 Nm (2.5 kg-m, 18.0 ft. lbs.)
(d): 45 Nm (4.5 kg-m, 32.5 ft. lbs.)
Tightening order: (1) -> (2) -> (3)
10. Pull out stopper (pin) from set hole.





11. Turn crankshaft two rotations clockwise then align timing mark on crankshaft and timing mark on cylinder block as shown in figure. Check each other timing marks that align them shown in figure.
12. Apply oil to timing chains, tensioner adjusters sprockets, and guides.
13. Install timing chain cover, oil pan, front differential housing, P/S system, cooling system, intake manifold with throttle body and other parts.
14. Refill cooling system, P/S system, front differential and engine with each oil/fluid.
15. Check wheel alignment, referring to Wheels, Tires and Alignment.
16. Verify that there is no fuel leakage, water leakage and oil leakage at each connection.