Camshaft - 4.0 Liter Engine

Camshaft - 4.0 Litre Engine





REMOVAL

1. Remove tappets and retain with their respective pushrods.





2. When tappets prove difficult to remove due to damaged camshaft contact area, proceed as follows. Lift tappets in pairs to the point where damaged face is about to enter tappet bore and install rubber bands to retain tappets. Repeat until all tappets are retained clear of camshaft lobes. The tappets can then be withdrawn out the bottom of their bores when the oil pan is removed.





3. Remove 2 bolts securing camshaft thrust plate to cylinder block, remove plate.
4. Withdraw camshaft, taking care not to damage bearings in cylinder block.

NOTE: Camshafts should be color coded ORANGE.

INSTALL

NOTE: If a replacement camshaft is to be installed, ensure color coding is correct. Camshafts should be color coded ORANGE.

1. Lubricate camshaft journals with engine oil and carefully insert camshaft into cylinder block.
2. Install camshaft thrust plate, install bolts and tighten to 25 Nm.
3. Immerse tappets in engine oil. Before installation, pump the inner sleeve of tappet several times using a pushrod to prime tappet; this will reduce tappet noise when engine is first started.
4. Lubricate tappet bores with engine oil and install tappets in removed order.

NOTE: Some tappet noise may still be evident on initial start-up. If necessary, run the engine at 2500 rpm for a few minutes until noise ceases.

5. Install timing chain and gears.
6. Install rocker shaft assemblies.