Cylinder Head Assembly: Service and Repair

Cylinder Head LH (12.29.04)

Removal
1. Disconnect the battery ground cable.
2. Remove the fuel rail.
3. Remove the LH bank camshafts.
4. Remove the camshaft position (CMP) sensor. Remove the Torx screw. Disconnect the electrical connector.





5. CAUTION: The bolts can be used only twice, mark the bolts with a center punch.

NOTE: Remove the bolts in the indicated sequence.

Remove the 12 cylinder head bolts.





6. With assistance remove the cylinder head.
7. Remove and discard the cylinder head gasket.





8. NOTE: Do not disassemble further if the component is removed for access only.

Remove the exhaust manifold.
^ Remove the 8 bolts.
^ Discard the gasket and the bolts.





Installation
1. Clean the component mating faces.
2. Check cylinder head face for distortion, across the center and from corner to corner.





3. For cylinder head face distortion data, refer to specifications.
4. Install the exhaust manifold.
^ Clean the component mating faces.
^ Install a new gasket.
^ Tighten the bolts to 20 Nm (15 ft. lbs.).

5. CAUTION: The head gasket must be installed over the cylinder block dowels.

Install a new cylinder head gasket.
^ Clean the cylinder head locating dowels.
6. With assistance install the cylinder head.

7. NOTE: Note: Tighten the bolts 1 to 12 in the sequence shown.

Install the cylinder head bolts.
^ Lubricate the new cylinder head bolt threads with clean engine oil.
^ Tighten the bolts 1 to 10, to 20 Nm (15 ft. lbs.).
^ Tighten the bolts 1 to 10, to 35 Nm (26 ft. lbs.).
^ Tighten the bolts 1 to 10, a further 90°.
^ Tighten the bolts 1 to 10, a further 90°.
^ Tighten the M8 bolts 11 and 12, to 25 Nm (18 ft. lbs.).





8. Install the (CMP) sensor.
^ Tighten the Torx screw to 7 Nm (5 ft. lbs.).
^ Connect the electrical connector.
9. Install the LH bank camshafts.
10. Install the fuel rail.
11. Connect the battery ground cable.