Install

1. Collect the spacer from the bolt on the exhaust camshaft.

3. Remove the two M6 bolts that attach the secondary timing chain tensioner to the cylinder head (refer to Figure 2).

4. Release and remove camshaft sprockets complete with timing chain and tensioner from camshafts (refer to Figure 3).

5. Remove intake sprocket housing assembly from secondary timing chain (refer to Figure 4).

Install

1. Clean the two camshaft sprockets and the tensioner.
2. Install the intake sprocket housing assembly and the exhaust sprocket into the secondary timing chain.
3. Install the secondary timing chain tensioner onto the timing chain.
4. Install the secondary timing chain assembly onto the camshafts.
5. Install the spacer onto the M12 exhaust Torx bolt.
6. Install the exhaust M12 Torx bolt to attach the exhaust camshaft sprocket. Do not tighten at this step.
7. Install the inlet M12 Torx bolt to attach the inlet camshaft sprocket. Do not tighten at this step.
8. Install and torque the two M6 bolts that attach the secondary tensioner.
9. Install the guide for the right primary timing chain.
10. Install and torque the M6 bolt that attaches the guide.
11. Make sure that the timing chain slack is on the tensioner side of the timing chain.
12. Install the primary timing chain.
13. Install the tensioner blade for the primary timing chain.
14. Install and torque the M6 bolt that attaches the tensioner blade.
15. Install the primary timing chain tensioner assembly.
16. Install and torque the two M6 bolts that attach the tensioner assembly.
17. Release the tension from the timing chain tensioner piston and remove the retaining special tool.
18. Install the timing chain tensioning tool (303-532) into the exhaust camshaft sprocket.

Apply an opposite force to the sprockets and chain while you tighten the sprocket bolts.

19. Apply a force to the tool (303-532) in a counterclockwise direction and torque the two M12 sprocket Torx bolts.
20. Remove the special tool.
21. Install the left and right primary timing chain (refer to Workshop Manual procedure 03.09.BN/03.09.BM