Check a condition of laying of a cover of a head of cylinders and if necessary replace laying.
Clear the condensed surfaces of the remains of laying and grease docking surfaces with Drei Bond 1209 sealant.
Places of putting sealant
Establish a cover of a head of cylinders, center it on several bolts then tighten bolts of fastening of a cover with the required effort in the sequence from the middle to edges.