We remove the cylinder head cover for repair and adjustment work, as well as when replacing seals.
To carry out the task, the following tools are required: 10 mm spanner, Torx E12 socket, screwdrivers, torque wrench.
We prepare the vehicle for the work, disconnect the negative battery terminal.
We remove the air filter (article – Removing and installing the air intake and resonator)
We disconnect the wiring harness connector from the intake air temperature sensor on the intake pipe resonator.
We remove the ignition coils (article – Replacing ignition coils and spark plugs)
On the F4R engine, we press the retainer of the wiring harness connector of the system valve and disconnect the connector from the valve.
We remove the intake pipe (article – Removing and installing the engine resonator)
We remove the oil separator
We remove the right power unit mounting (article – Replacing power unit mounts)
We remove the upper timing belt cover (article – Checking and replacing the timing belt)
On the F4R engine, we unscrew the bolt securing the valve of the valve timing variation system.
We remove the solenoid valve
We unscrew the twenty-four bolts securing the cylinder head cover.
We prise off the cylinder head cover with a pry bar or a sturdy screwdriver.
We remove the cover
We clean the mating surfaces of the cover and the cylinder head from old sealant.
We apply gasket sealant to the mating surface of the cylinder head.
We install the cover on the cylinder head.
We tighten the cylinder head cover bolts in four stages, in the sequence shown in the figure:
- - first stage – tighten bolts 22, 23, 20, 13 to 8 Nm;
- - second stage – tighten bolts 1 to 12, 14 to 19, 21 to 24 to 12 Nm;
- - third stage – loosen bolts 22, 23, 20, 13;
- - fourth stage – tighten bolts 22, 23, 20, 13 to 12 Nm.
We install all parts in the reverse order.
