Camshaft: Service and Repair

REMOVAL
1. Remove cylinder head cover using procedure outlined in this section.
2. Remove timing belt, sprockets and covers. Refer to Timing Belt Service outlined in this section.





3. Bearing caps are identified for location. Remove the outside bearing caps first.





4. Loosen the camshaft bearing cap attaching fasteners in sequence shown one camshaft at a time.

CAUTION: Camshafts are not interchangeable. The intake cam number 6 thrust bearing face spacing is wider.

5. Identify the camshafts before removing from the head. The camshafts are not interchangeable.

CAMSHAFT END PLAY
1. Oil camshaft journals and install camshaft WITHOUT cam follower assemblies. Install rear cam caps and tighten screws to specified torque.
2. Using a suitable tool, move camshaft as far rearward as it will go.





3. Zero dial indicator.
4. Move camshaft as far forward as it will go.
5. End play travel: 0.05 - 0.15 mm (0.002 - 0.010 inch).
6. If end play is excessive check cylinder head and camshaft for wear; replace as necessary.

CAUTION: Ensure that NONE of the pistons are at top dead center when installing the camshafts.

INSTALLATION





1. Remove camshaft retaining caps and lubricate bearing journals. Install cam followers and camshafts with clean oil. Install right and left camshaft bearing caps #2 thru #5 and right #6. Tighten M6 fasteners to 12 Nm (105 inch lbs.) in sequence shown.





2. Apply Mopar Gasket Maker, or equivalent to No. 1 and No. 6 bearing caps. Install bearing caps and tighten M8 fasteners to 28 Nm (250 inch lbs.).
3. Bearing end caps must be installed before seals can be installed.
4. Install timing belt, sprockets and covers.
5. Install cylinder head cover.