Disassembly and Assembly

Cylinder Head

Special Tools And Equipment:

Special Tool(s)

Material:

Material

Disassembly
1. Remove the spark plugs.





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






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

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





7. Remove the camshaft.
8. 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 their original positions.

Position the camshaft bearing caps, the oil supply tube, and the bolts.






3. NOTE: After installing the bolts, check the camshaft for free rotation.

Tighten the camshaft bearing cap bolts in two stages in the sequence shown.
^ Stage 1: Tighten to 6 Nm (53 inch lbs.).
^ Stage 2: Tighten to 16 Nm (12 ft. lbs.).

4. Install the valve.





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





6. Position the valve spring and the valve spring retainer.





7. Install the special tool between the valve spring coils to prevent valve stem seal damage.





8. Using the special tool to compress the valve spring, install the valve spring retainer keys.
9. Repeat the procedure until all of the valves are installed.





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