Fig. 5.49. Cylinder head of the 2.2 l Duratorq-TDCi engine: 1 – fuel injector; 2 – upper part of the cylinder head; 3 – exhaust camshaft; 4 – roller pusher; 5 – valve spring cracker; 6 – upper valve spring plate; 7 – valve springs; 8 – lower valve spring plate; 9 – lower part of the cylinder head; 10 – gasket; 11 – exhaust valves; 12 – intake valves; 13 – glow plug; 14 – cylinder head mounting bolts (10 pcs.); 15 – intake camshaft; 16 – exhaust camshaft oil seal
You will need: all the tools necessary to remove the cylinder head cover and timing belt.
The camshafts are replaced in the following cases: – the pressure in the engine lubrication system has dropped; - valve knocking with normal clearances in the valve drive mechanism. Caused by increased wear of the camshaft cams due to the use of low-quality motor oil or damage to the oil filter.
1. Disconnect the wire from the negative terminal of the battery.
2. Remove the intake pipe.
3. Remove the cylinder head cover (see Replacing the cylinder head cover seals on a 2.2L duratorq-tdci engine).
4. Loosen the chain tension and remove the chain.
5. Remove the camshafts.
6. Remove the oil seals 16 (see Fig. 5.49) of the camshafts and, if necessary, replace the gasket 10.
NOTE: Replace the camshaft seals with new ones each time they are removed.
7. Inspect the camshafts. If there are signs of seizure, overheating, deep scratches or faceted wear on the working surfaces of the cams, replace the shafts.
8. Install the removed parts in the reverse order of removal.
[The original can be found on the specified resource: FORDBOOK.RU]