2ND Timing Chain

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

LH (No.1) Bank 2ND Timing Chain and Chain Tensioner Components:

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

Removal and Installation
Reference: LH (No.) Bank 2nd Timing Chain and Chain Tensioner Components

Removal
1) Remove engine assembly from vehicle.
2) Remove timing chain cover.
3) Turn crankshaft to meet the following condition.
^ Key (1) on crankshaft positions as shown.
^ Mark on idler sprocket No.2 (2) points the center of crankshaft.
^ The marks on sprockets (3) match with marks on cylinder head.





4) Remove timing chain tensioner adjuster No.3 (1).
To remove it, slacken LH (No.1) bank 2nd timing chain by turning intake camshaft (2) counterclockwise a little while pushing back pad.





5) Remove LH (No.1) bank intake and exhaust camshaft sprocket bolts.
To remove it, fit a spanner to hexagonal part (3) at the center of camshaft to hold it stationary.





6) Remove LH (No.1) bank exhaust camshaft sprocket (1).

CAUTION:
Removing sprocket (1) from camshaft (2) 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.





7) Remove LH (No.1) bank intake camshaft sprocket.
8) Remove LH (No.1) bank 2nd timing chain.

Installation
Reference: LH (No.1) Bank 2nd Timing Chain and Chain Tensioner Inspection
1) Check timing mark on crankshaft as shown in figure.





2) Check timing mark on idler sprocket No.2 (1) as shown in figure.





3) Install timing chain guide No.4 (1).
Tightening torque
Timing chain guide No.4 bolt a: 11 Nm (1.1 kg-m, 8.0 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 (2) on yellow plate (1) of LH (No.1) bank 2nd timing chain and idler sprocket No.2.





6) Install sprockets to intake and exhaust camshafts by aligning silver plate (1) of LH (No.1) 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 (No.1) bank intake and exhaust camshaft timing sprockets.
To install it, fit a spanner to hexagonal part at the center of camshaft to hold stationary.

Camshaft timing sprocket:

8) With latch (2) of tensioner adjuster No.3 returned and plunger (1) pushed back into body, insert stopper (pin) (4) into set hole (3).
After inserting it, check that plunger will not come out.





9) Install timing chain tensioner adjuster No.3 (1) in tightening order below.
Tightening torque
Timing chain tensioner adjuster No.3 bolt c: Tighten 11 Nm (1.1 kgf-m, 7.5 ft. lbs.) by the specified procedure
Timing chain tensioner adjuster No.3 nut d: Tighten 45 Nm (4.5 kgf-m, 32.5 ft. lbs.) by the specified procedure Tightening order for tensioner bolt and nuts: "1" -> "2" -> "3"
10) Pull out stopper (pin) (2) from set hole.





11) Turn crankshaft two rotations clockwise then align timing pulley key (1) on crankshaft and oil jet (2) 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.
14) Install oil pans.
15) Install cylinder head covers.
16) Install intake manifold, intake collector and electric throttle body assembly.
17) Install engine assembly to vehicle.

LH (No.1) Bank 2nd Timing Chain and Chain Tensioner Inspection
Reference: LH (No.1) Bank 2nd Timing Chain and Chain Tensioner Removal and Installation

Timing Chain Guide No.4 and No.5
Check shoe (3) 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 (1) for wear or damage.





^ Check that latch (1) and tooth surface (2) are free from damage and latch functions properly.





RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Components





RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Removal and Installation
Reference: RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Components
1) Remove engine assembly from vehicle.
2) Remove timing chain cover.
3) For reinstallation of timing chain, align 12 timing marks as shown in figure by turning crankshaft.





4) Remove LH (No.1) bank 2nd timing chain. Refer to LH (No.1) Bank 2nd Timing Chain and Chain Tensioner Removal and Installation.
5) Remove 1st timing chain. Refer to 1st Timing Chain and Chain Tensioner Removal and Installation.
6) Remove timing chain guide No.3, referring to RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Components.
7) Loosen camshaft housing bolts in such order ("1" - "17") as indicated in figure and remove them.
8) Remove camshaft housings.





9) Remove RH (No.2) bank intake camshaft, RH (No.2) bank exhaust camshaft, and RH (No.2) bank 2nd timing chain as a set, referring to RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Components.
10) Remove timing chain tensioner adjuster No.2, referring to RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Components.

Installation
Reference: RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Inspection
1) Check timing mark on crankshaft as shown in figure.





2) Apply oil to timing chain tensioner adjuster No.2 (1).
3) Install timing chain tensioner adjuster No.2 (1).
Tightening torque
Timing chain tensioner adjuster No.2 bolt a: 11 Nm (1.1 kg-m, 8.0 ft. lbs.)





4) Apply oil to sliding surface of each camshafts and camshaft journals.
5) Install RH (No.2) bank 2nd timing chain by aligning match marks on yellow plates (1) of RH (No.2) bank 2nd timing chain, RH (No.2) bank 2nd timing chain intake camshaft sprocket and RH (No.2) bank 2nd timing chain exhaust camshaft sprocket as shown in figure.





6) Install camshaft housing pins (3) as shown in figure.





7) Check position of camshaft housings.
Embossed marks are provided on each camshaft housing, indicating position and direction for installation. Install housings as indicated by these marks.





8) After applying oil to housing bolts, tighten them temporarily first.
Then tighten them by following sequence ("1" - "17") as indicated in figure. Tighten a little at a time and evenly among bolts and repeat tightening sequence 2 or 3 times before they are tightened to specified torque below.
Tightening torque
Camshaft housing bolt: 11 Nm (1.1 kgf-m, 8.0 ft. lbs.) by the specified procedure





9) Install timing chain guide No.3 (1).





10) Install 1st timing chain.
11) Install LH (No.1) bank 2nd timing chain.
12) Install timing chain cover.
13) Install oil pans.
14) Install cylinder head covers.
15) Install intake manifold.
16) Install engine assembly to vehicle.

RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Inspection
Reference: RH (No.2) Bank 2nd Timing Chain and Chain Tensioner Removal and Installation

Timing Chain Guide No.3
Check shoe (1) for excessive wear or damage.
If any malfunction is found, replace it.





RH (No.2) Bank 2nd Timing Chain Sprockets
Check teeth of sprocket for wear or damage.





RH (No.2) Bank 2nd Timing Chain
Check timing chain for wear or damage.





Timing Chain Tensioner Adjuster No.2
^ Check shoe (1) for wear or damage.
^ Check that plunger slides smoothly.