Warning! In order to prevent oil leaks developing between the cylinder barrel and the crankcase, every time the cylinder head is removed, it is essential to remove also the cylinder barrel/piston in order to be able to clean the crankcase and cylinder barrel, to renew, if necessary, damaged gaskets and O-rings and to apply new liquid gasket (Refitting the cylinder/piston assembly).
Before refitting the cylinder head assemblies, fit new head gaskets (C) and check that the locating dowels (A) and bushes (B) are installed (Cylinder/piston assemblies).
Fit the cylinder head onto the studs and lower it down onto the cylinder barrel.
Fit the special washers (12) over the stud bolts with the square edged face towards the cylinder head and the flat face towards the inside.
Grease the threads and undersides of the nuts (19) and the threads of the studs with the recommended grease.
Using tool no. 88713.2676 in conjunction with a torque wrench, gradually tighten the cylinder head nuts to the specified torque in a crosswise sequence (Engine torque settings).
Caution! Incorrect tightening could cause abnormal elongation of the studs and serious damage to the engine.
| Operation | Section reference |
| Refit the timing belt covers and the timing belts | Refitting the timing belt tensioner pulleys |
| Refit the engine to the frame | Refitting the engine |