Refitting and tensioning timing belt

1. With tools 1860992000 aligned and springs of tool 1860985000 positioned in the plug seats on the cylinder head extension, pin (2) should click into position in groove (1) on the camshafts. Camshaft timing is correctly adjusted in this position.

If tools 1860985000 do not fit into the camshaft grooves, remove the belt and then turn the camshafts slightly until the pin and groove fit together properly.

Tools 1860985000 may be used as reaction tools to loosen the bolts of the camshaft rear gears (if these require attention).

2. Loosen the timing belt tensioner retaining nut, then remove the belt.

Refitting and tensioning timing belt

3. The camshaft drive pulley is slotted. To ensure the pulley teeth and timing belt are properly coupled, loosen the pulley retaining screw by using reaction tool 1860831000.