The figures show an engine block removed from the frame, but the operation can also be performed with engine on the frame.
Loosen the screws (6) securing the timing side belt rollers.
Make sure that the reference points on the timing layshaft pulley matches those on the clutch cover.
Fit on generator cover the tool (B) no. 88713.2011 in the generator seat to prevent the rotation of the crankshaft and block it with the suitable pin. Then tighten the screw
of the tool.
Fit tools (A) no. 88765.1623 in the belt rollers to prevent them from rotating.
Use the tool to insert pins (C) in seats (D) of the camshafts.
To install the vertical head belt (5) let it adhere against the head pulleys, pass it behind the fixed tensioner (7) and then
follow the same procedure to fit belt (5) of the horizontal piston/cylinder.
Note
If the used belts are to be refitted, position them in their original direction of rotation and on their original cylinder.
Fit the mobile tensioner (3) and the washer (2) on the cylinder head pin.
Apply recommended grease on mobile tensioner pin threads, and on nut (1) mating surface.
Start the nut (1).
Check the tensioning value and adjust the vertical head and horizontal head belt.
After reaching the required tension make sure that nuts (1) retaining mobile tensioners (3) are tightened to 25 Nm (Min. 22
Nm - Max. 28 Nm) and screws (6) of head belt rollers to 10 Nm (Min. 9 Nm - Max. 11 Nm).
Remove the pulley and crankshaft blocking tools.
Note
If the above operations have been carried out with the engine installed in the frame, refit the previously removed parts.