Lubricate the cylinder head screw threads and the
washers then fit and tighten the screws. The tightening
force is 90 Nm (9 kpm) (66 lbf. ft.). The tightening
is to be carried out in two stages.
1. 60 Nm (6 kpm) (44.2 lbf. ft.)
2. 90 Nm (9 kpm) (66 lbf. ft.).
The screws are to be re-torqued after the engine
has been warmed up and allowed to cool for 30
minutes. When retorquing, screws must first be
loosened sufficiently so that they turn when being
re-torqued. (Static friction must be overcome).
