Removing
Removal in the following order:
- turn off the ignition and disconnect the wire «masses» from the storage battery;
- disconnect the electrical connectors from the ignition coils, unscrew the nuts securing the wiring harness to the cylinder head cover and take the wires to the side. Remove the ignition coils from each spark plug;
- disconnect the crankcase ventilation hose from the cylinder head cover;
Pic. 3.53. Arrangement of bolts of fastening of a cover of a head of the block of cylinders
- remove the bolts (pic. 3.53) and remove the cover and gasket from the cylinder head. If it is tight, knock it down with a mallet or insert a knife between the cylinder head and cover and pry it up. When using a knife, do not damage the mating surfaces of the cylinder head and cover, otherwise engine oil will leak at the site of damage.
Installation
Install in the following order:
- remove the gaskets and clean the mating surfaces of the cylinder head and cover;
- install new rubber gaskets around the perimeter of the cover and around the holes for the spark plugs and press them into the corresponding grooves;
- make sure that the mating surfaces of the chain front cover and cylinder head are clean and dry before installing the cover. If traces of engine oil remain on the surfaces, then after installing the cover, there may be oil leaks in these places;
- apply a layer of RTV sealant to the joints between the front chain cover and cylinder head, and install the cylinder head cover;
- screw in and tighten the cover bolts in several passes.
Further installation of the cover is carried out in the reverse order of removal.
Start the engine and check for oil leaks from under the cylinder head cover.