Reassembling the cylinder head

Reassembling the cylinder head

• Turn the crankshaft to take the pistons of the 1st and 4th cylinder to the T.D.C.
• Position the gasket on the crankcase, then the cylinder head.
• Tighten the cylinder head fastening screws as described below and bearing in mind that the tightening sequence is the one shown below for each phase.

• For angle tightening use the graduated disk no. 1.820.277.000 as illustrated.

The gasket between the cylinder head and the crankcase is in aramidic fibre and cylinder head retightening is unnecessary throughout the life of the engine.

Assembling the timing gear drive belt and checking timing

• Assemble the camshaft toothed pulleys without tightening the fastening screws, the timing drive belt pulleys and the corresponding belt tensioners.

1. Install tool no. 1.825.013.000 (C.6.0183) fitted with a dial gauge in the seat of the centre spark plug of the 1st cylinder.

• Turn the crankshaft until the piston of the first cylinder reaches the T.D.C. in the bursting stroke.

1. Remove the camshaft caps illustrated and in their place insert templates no. 1.825.041.000 tightening the fastening screws to a maximum torque of 10 Nm (1 Kgm) and checking for correct coupling with th cams.

NOTE: For turning the camshafts, use tool no. 1.822.155.000 for the intake side and tools no. 1.822.146.000 and no. 1.822.156.000 for the exhaust side, to be applied on the corresponding pulleys.