Removal

TIMING CHAIN


Removal

1. Remove front timing chain case. Refer to Removal and Installation.
2. Remove the intake manifold collector. Refer to Intake Manifold Collector.
3. Remove the engine oil dipstick.
4. Remove the rocker covers. Loosen the bolts in the numerical order as shown.






Arrow Indicates Front

5. Place paint marks on the timing chain and sprockets to indicate the correct position of the components for installation.
6. Remove the timing chain tensioner (primary).





a. Pull lever down and release plunger stopper tab. Plunger stopper tab can be pushed up to release (coaxial structure with lever).





b. Insert stopper pin into tensioner body hole to hold lever, and keep the tab released. An Allen wrench [1.2 mm (0.047 in)] is used for a stopper pin as an example.
c. Insert plunger into tensioner body by pressing the slack side chain guide.
d. Keep the slack side chain guide pressed and hold it by pushing the stopper pin through the lever hole and body hole.
e. Remove the bolts and remove the timing chain tensioner.





7. Remove the internal chain guide (1), and slack guide (2).
8. Remove primary timing chain and crankshaft sprocket.

CAUTION:
After removing timing chain, do not turn the crankshaft and camshaft separately, or the valves will strike the pistons.





9. Attach a suitable stopper pin to the right and left camshaft chain tensioners (for secondary timing chains).





10. Remove the intake and exhaust camshaft sprocket bolts.
- Apply paint to the timing chain and camshaft sprockets for alignment during installation.
- Secure the hexagonal portion of the camshaft using a wrench to loosen the bolts.





11. Remove the secondary timing chains with camshaft sprockets.
a. Rotate camshaft slightly, and slacken timing chain of timing chain tensioner -side.
b. Insert metal or resin plate [0.5 mm (0.020 in)] into guide between timing chain and chain tensioner plunger. Remove cam sprocket and secondary timing chain with timing chain removed from guide groove.

CAUTION:
Chain tensioner plunger can move, while stopper pin is inserted in tensioner. Plunger can come out of tensioner when timing chain is removed. Use caution during removal.





- Intake camshaft sprocket is two-for-one structure of primary and secondary sprockets.
- Handle the intake sprockets as an assembly.

CAUTION:
- Avoid impact or dropping the intake sprockets.
- Do not disassemble the intake sprockets (never loosen bolts (A) and (B) as shown).
12. Remove the chain tension guide.