Cylinder Heads

Cylinder Head





Special Tool(s)

Disassembly
1. Remove the spark plugs.





2. Using the special tool, remove the camshaft roller followers





3. Using the special tool, remove the valve spring retainer keys, the valve spring and the retainer.
4. Remove the valve.
5. Repeat the procedure until all of the valves are removed.
6. Remove the valve stem seals.





7. NOTE: Mark the position of the camshaft bearing caps so they can be installed in the original position.

Remove the bolts in the sequence shown and remove the camshaft bearing caps.





8. Remove the camshaft.
9. Inspect the cylinder head.

Assembly

NOTE: Prior to assembly, coat all of the valve train components with clean engine oil.





1. Install the camshaft.





2. NOTE: The camshaft bearing caps must be installed in the original position. After installing the bolts, check the camshaft for free rotation.

Position the oil supply tube, the camshaft bearing caps, and bolts.
^ Tighten in the sequence shown in two stages:
^ Stage 1: Tighten to 6 Nm (53 inch lbs.).
^ Stage 2: Tighten to 16 Nm (12 ft. lbs.).
3. Install the valve.





4. Using the special tool, install the valve stem seals.





5. Using the special tool, install the valve spring. the retainer and the retainer keys.
6. Repeat the procedure until all of the valves are installed.





7. Install the spark plugs.
8. Install the camshaft roller followers only when the cylinder head is installed in the vehicle and the timing procedure has been carried out.