Removing
1. Disconnect the negative battery cable.
2. Remove the engine cover.
3. Disconnect the wires of the ignition coils, remove the coils and spark plugs.
4. Remove the two nuts and disconnect the wiring harnesses from the left side of the engine.
5. Disconnect the wiring harness from the timing belt cover, remove the five bolts and disconnect the wires from the right side of the engine.
6. Tighten the nuts and remove the head covers.
Installation
1. Thoroughly clean and wipe the mating surfaces of the covers and cylinder heads with acetone.
2. Install new spark plug tube gaskets.
3. Install new gaskets in the head covers, apply sealant to the areas indicated by the arrows, and install the covers.
4. Tighten the nuts to the required torque and install the remaining parts.