Installation

13. Cover the engine block to prevent ingress of foreign material.

Installation

Ensure all mating surfaces are clean, smooth and free of any contamination.

1. Install all lash adjusters.

Soak the lash adjusters in engine oil and ensure that they are 'pumped up' with engine oil.

Insert each lash adjuster into its correct recess in the cylinder head.

2. Install the camshaft followers to their valves.

Caution
Ensure that the dimpled end of the camshaft followers are installed to the lash adjusters.

Soak the cam followers in engine oil.

3. Lubricate the camshaft journals, camshaft bearing caps with engine oil.
4. Ensure the crankshaft key is vertical.

Caution
The crankshaft key must remain in the vertical position until the camshaft chains are correctly installed and tensioned. Movement of the crankshaft before completion of valve timing may cause contact between a piston and a valve, resulting in valve and / or piston damage.

The crankshaft key is exactly in line with No.1 crankshaft throw. With the crankshaft key vertical, No.1 piston is 30° ATDC and all pistons are below engine block surface.

5. Place the camshafts in position, with the timing marks in the positions shown.

The positions shown allow the camshafts to lay at their lowest in the journals.

6. Work on one cylinder head at a time.
7. Install all camshaft bearing caps, except the two thrust camshaft bearing caps (No.1 and No. 8 cap) at the front of each camshaft. Loosely secure each cam cap.

Bearing Caps

The bearing caps are numbered and correspond with numbers stamped on the cylinder head adjacent to the journal.

8. Test install No.1 and No. 8 bearing caps over their thrust flanges. If the bolt holes do not perfectly align, move the camshafts forward or rearward as required until the bearing caps locate correctly. Loosely secure the bearing caps.