Intake Camshaft and Lifter Replacement

Intake Camshaft and Lifter Replacement

^ Tools Required
- J 43655 Camshaft Sprocket Holding Tool

Removal Procedure
1. Remove the camshaft cover.





2. Remove the upper timing chain guide.





3. Install the J 43655.





4. Remove both the intake and exhaust camshaft sprocket bolts and discard.
5. Slide the camshaft sprockets forward.





6. Mark bearing caps to ensure they are installed in the original position.

7. Important: Remove each bolt on each cap one turn at a time until there is no spring tension on the camshaft.

Remove the bearing caps.
8. Remove the intake camshaft.





9. Remove the camshaft roller followers.





10. Remove the hydraulic element lash adjusters.

Installation Procedure





1. Lubricate the valve tips.





2. Install the hydraulic element lash adjusters.





3. Install the camshaft roller followers.





4. Ensure that the alignment notches are aligned with the camshaft sprocket.





5. Install the intake camshaft.
6. Install the camshaft bearing caps.

7. Notice: Refer to Fastener Notice in Service Precautions.

Tighten the camshaft bearing cap bolts in increments of 3 turns until they are seated.
^ Tighten the camshaft bearing cap bolts to 10 Nm (89 inch lbs.).





8. Apply a 5 mm (0.197 inch) bead of Permatex Anaerobic Gasket Maker 51813 (or equivalent), to the rear intake camshaft bearing cap.
9. Install the rear intake camshaft bearing cap bolts.
^ Tighten the bolts to 25 Nm (18 ft. lbs.).
10. Install camshaft sprockets onto the camshafts.
11. Hand tighten NEW camshaft sprocket bolts.
12. Remove the J 43655.





13. Tighten the camshaft sprocket bolts.
^ Tighten the bolts to 85 Nm (63 ft. lbs.) plus 30 degrees.





14. Install the upper timing chain guide.
^ Tighten the upper timing chain guide to 10 Nm (89 inch lbs.).
15. Install the camshaft cover.