Refit

REFIT
1. Fit a new gasket, dry, on the cylinder block ensuring that the side marked 'TOP' is uppermost. Be sure that #6 cylinder (front) is at TDC position, with the distributor rotor arm pointing approximately forward along the engine.
2. Fit timing tool C3993 in the slots in the front flanges.

CAUTION: Ensure that the inlet and exhaust valves do not foul each other.

3. Lower the cylinder head into position on the cylinder block.
4. Fit the spark plug lead bracket and lifting brackets to appropriate cylinder head studs.
5. Place the washers on the cylinder head studs and fit the fourteen large cylinder head domed nuts.
6. Fit six nuts and washers to secure the forward end of the cylinder head.

Fig. 6 Cylinder head bolt tightening sequence.:

7. Tighten large cylinder head nuts to:

Initial assembly 67.8-70.5 Nm (50-52 ft lb)
Check & retorque 70.5-73.2 Nm (52-54 ft lb)

8. Fully tighten the six small nuts at front of head.

CAUTION: Do not rotate the engine or camshaft until the camshaft sprockets have been connected.

9. Locate the sprockets on the camshaft flanges and ensure that both holes in each flange are in alignment with the holes in the adjuster plates.

Camshaft Gear Bolts:

NOTE: If necessary, remove the circlip, disengage the serrations and re-position the adjuster plate as necessary. Refit the circlip.

10. Secure each adjuster plate to the camshaft, using two bolts and lockplate.
11. Rotate the engine until the remaining holes on each camshaft are accessible and fit the bolts.
12. Turn up the tabs.
13. Tension the timing chain by using service tool JD2B rotated in an anti-clockwise direction.

NOTE: When correctly tensioned there should be slight flexibility on both outer sides of the chain.

14. Securely tighten the locknut.
15. Ensure that No 6 cylinder is at TDC firing (with the pointer opposite '0' on the timing scale) and re-check the position of the camshafts using gauge C3993.
16. Reverse the removal operations as appropriate, to complete the reassembly.
17. Check ignition timing.