Cylinder Head Gasket (LH)

CYLINDER HEAD GASKET (LH) - from 99MY

Remove
1. Remove inlet manifold gasket, See INTAKE MANIFOLD.
2. Remove exhaust manifold gasket, See EXHAUST SYSTEM.




3. Remove dipstick and dipstick tube. Remove four screws securing rocker cover and remove rocker cover.




4. Remove bolt securing engine harness to rear of cylinder head.




5. Progressively remove 4 bolts securing rocker shaft and remove rocker shaft.
6. Remove push rods.

NOTE: Store push rods in their fitted order.




7. In the sequence shown remove 10 bolts securing the cylinder head to block.
8. Remove cylinder head.




9. Remove cylinder head gasket.


Refit
10. Clean mating faces of cylinder block and head using suitable gasket removal spray and a plastic scraper, ensure that bolt holes in block are clean and dry.

CAUTION: Do not use metal scraper or machined surfaces may be damaged.

11. Check head and block faces for warping and pitting.
12. Fit cylinder head gasket with the word TOP uppermost.

NOTE: Gasket must be fitted dry.

13. Carefully fit cylinder head and locate on dowels.
14. Lightly lubricate new cylinder head bolt threads with clean engine oil.

NOTE: Long bolts: 1, 3, 5.




15. Fit bolts and tighten in the sequence shown to 20 Nm (15 ft. lbs.) then 90°, then a further 90°.
16. Clean push rods.
17. Lubricate ends of push rods with clean engine oil.
18. Fit push rods in their removed order.
19. Clean base of rocker pillars and mating faces on cylinder head.
20. Clean contact surface on rockers, valves and push rods.
21. Lubricate contact surfaces and rocker shaft with clean engine oil.
22. Fit rocker shaft assembly and engage push rods.
23. Tighten rocker shaft securing bolts progressively to 38 Nm (28 ft. lbs.).
24. Fit and tighten engine harness bolt to 20 Nm (15 ft. lbs.).
25. Refit rocker cover.
26. Ensure dipstick tube and mating face on cylinder block is clean.
27. Apply Loctite 638 to end of dipstick tube and fit tube and dipstick to cylinder block.
28. Fit exhaust manifold. See EXHAUST SYSTEM.
29. Fit inlet manifold gasket. See INTAKE MANIFOLD.