Gasket - cylinder head - LH (page 2 of 2)

10. Remove cylinder head.

CAUTION: Support both ends of cylinder head on blocks of wood.

11. Remove cylinder head gasket.

Refit

1. 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. Clean mating faces of cylinder head and exhaust manifold.

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

2. Check head and block faces for warping and pitting. If out of specification, renew head.
3. Fit cylinder head gasket with the word 'TOP' uppermost.

CAUTION: Gaskets must be fitted dry.

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

6. Noting that bolts 1, 3 and 5 are longer than the remainder, fit cylinder head bolts and tighten in the sequence shown to 20 Nm (15 lbf.ft) then 90° , and finally a further 90° .

CAUTION: Do not tighten bolts 180° in one operation.

7. Models with SAI: Fit new air injection adapters and tighten to 33 Nm (24 lbf.ft).
8. Clean push rods.
9. Lubricate ends of push rods with clean engine oil.
10. Fit push rods in their removed order.
11. Clean bases of rocker pillars and mating faces on cylinder head.
12. Clean contact surfaces on rockers, valves and push rods.
13. Lubricate contact surfaces and rocker shaft with clean engine oil.
14. Fit rocker shaft assembly and engage push rods.
15. Fit rocker shaft bolts and progressively tighten to 40 Nm (30 lbf.ft).

16. Using new gaskets, position exhaust manifold to cylinder head, fit bolts and using sequence shown, tighten initially to 15 Nm (11 lbf.ft), then finally to 36 Nm (28 lbf.ft).