To replace the cylinder head cover gasket on a 1.6L Duratec Ti-VCT engine, follow these steps.
You will need a key "for 12".
1. Disconnect a wire from the minus plug of the storage battery.
2. Disconnect the crankcase ventilation hose from the cylinder head cover.
3. Disconnect the wiring harness pads from the two camshaft position sensors (refer to Checking and Replacing Engine Control Sensors).
4. Disconnect the wiring harness pads from the two valves of the variable valve timing system..
5.... Remove the mounting bolts and remove the phase adjustment valves.
6. Remove from spark plugs tips of high-voltage wires.
7. Turn out twelve bolts of fastening of a cover of a head of the block of cylinders, remove a cover and the lining established under it.
8. Clean the grooves of the cover and the mating surface of the head of the block from the remnants of the old gasket.
9. Install the cylinder head cover with a new gasket and all removed parts in the reverse order of removal. Bolts of fastening of a cover tighten in the order shown in fig. 5.23, in two stages: 1st - pre-tightening with a torque of 3 Nm (0.3 kgf·m); 2nd - final tightening with a torque of 9 Nm (0.9 kgf·m).
Pic. 5.23. Tightening order for cylinder head cover bolts for 1.6L Duratec Ti-VCT engine.
To replace the cylinder head cover gasket on 2.0L and 2.3L Duratec-HE engines, follow these steps.
You will need a key "for 12".
1. Disconnect a wire from the minus plug of the storage battery.
2. Disconnect the crankcase ventilation hose from the cylinder head cover.
3. Remove ignition coils (see Removing and installing ignition coils for duratec-he and duratec-v15 engines).
4. Unscrew the ball posts for fastening the decorative casing from the studs..
5.... and remove the racks.
6. Turn out eleven hairpins and three bolts of fastening of a cover of a head of the block of cylinders …
7….and remove the cover.
NOTE: When replacing the cylinder head cover gasket on a 2.3L Duratec-HE engine, it is also necessary to remove the camshaft position sensor from the cylinder head cover by disconnecting the wiring harness block and removing the bolt securing it to the cylinder head cover.
8. Remove the old gasket from the grooves of the cylinder head cover..
9.... and four gaskets for sealing candle wells.
NOTE: When replacing the cylinder head cover gasket on a 2.3L Duratec-HE engine, the valve timing solenoid valve gasket installed in the cylinder head cover must be replaced.
10. Install the cylinder head cover with a new gasket and all removed parts in the reverse order of removal. Bolts of fastening of a cover tighten in the order shown in fig. 5.24, in two stages: 1st - pre-tightening with a torque of 3 Nm (0.3 kgf·m); 2nd - final tightening with a torque of 9 Nm (0.9 kgf·m).
Pic. 5.24. Tightening order for cylinder head cover bolts for Duratec-HE 2.0L and 2.3L engines
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