Cylinder Head Assembly: Service and Repair

CYLINDER HEAD GASKET REPLACEMENT [AJ]

Warning:
^ Fuel vapor is hazardous. It can very easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
^ Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete the "Fuel Line Safety Procedure".

1. Drain the engine coolant.
2. Remove the water pump.
3. Remove the timing chain.
4. Install the oil pan.





5. Secure the engine and the transaxle using an engine jack and attachment as shown.
6. Remove in the order indicated in the table.
7. Install in the reverse order of removal.





Water Bypass Tube Removal Note





1. Remove the water bypass tube installation stud bolt and bolt, and disconnect the water bypass tube from the cylinder head.

Camshaft (RH) Removal Note

Caution:
^ Remove the camshaft bearing thrust caps No. 1R and 5R first. Do not loosen any of the other bolts until the thrust caps are removed, or damage to the thrust caps may occur.

Note:
^ Cylinder head and the camshaft bearing caps are numbered to make sure they are assembled in their original position. When removed, keep the bearing caps with the cylinder head from where they were removed together. Do not mix the caps.

1. Loosen bolts in several passes.

Note:
^ Do not remove bolts completely.





2. Remove the RH camshaft thrust caps 1R and 5R.





3. Loosen the remaining bolts 7 - 8 turns in the indicated sequence in several passes to allow the camshafts (RH) to be slowly raised.

Cylinder Head (RH) Removal Note





1. Loosen the cylinder head bolts in several passes in the order shown.

Camshaft (LH) Removal Note

Caution:
^ Remove the camshaft bearing thrust caps No. 1L and 6L first. Do not loosen any of the other bolts until the thrust caps are removed, or damage to the thrust caps may occur.

Note:
^ Cylinder head and the camshaft bearing caps are numbered to make sure they are assembled in their original position. When removed, keep the bearing caps with the cylinder head from where they were removed together. Do not mix the caps.

1. Loosen bolts in several passes.

Note:
^ Do not remove bolts completely.





2. Remove the camshaft (LH) thrust caps 1L and 6L.





3. Loosen the remaining bolts 7 - 8 turns in the indicated sequence to allow the camshaft (LH) to rise.

Cylinder Head (LH) Removal Note





1. Loosen the cylinder head bolts in several passes in the order shown.

Cylinder Head (LH) Installation Note





1. Tighten the cylinder head bolts in the order shown using the following 6 steps.
(1) Tighten to 32 - 38 Nm (3.3 - 3.8 kgf.m, 24 - 28 ft. lbf).
(2) Tighten 85° - 95°.
(3) Loosen 360° (one full turn) in reverse order.
(4) Tighten to 32 - 38 Nm (3.3 - 3.8 kgf.m, 24 - 28 ft. lbf).
(5) Tighten 85° - 95°.
(6) Tighten 85° - 95°.

Camshaft (LH) Installation Note
1. Install the camshaft (LH) referring to Timing Chain Component (LH) Installation Note in TIMING CHAIN REMOVAL/INSTALLATION.

Cylinder Head (RH) Installation Note





1. Tighten the cylinder head bolts in the order shown using the following 6 steps.
(1) Tighten to 32 - 38 Nm (3.3 - 3.8 kgf.m, 24 - 28 ft. lbf).
(2) Tighten 85° - 95°.
(3) Loosen 360° (one full turn) in reverse order.
(4) Tighten to 32 - 38 Nm (3.3 - 3.8 kgf.m, 24 - 28 ft. lbf).
(5) Tighten 85° - 95°.
(6) Tighten 85° - 95°.

Camshaft (RH) Installation Note
1. Install the camshaft (RH) referring to Timing Chain Component (RH) Installation Note in TIMING CHAIN REMOVAL/INSTALLATION.