Turbodiesel 1929 engine servicing (page 4 of 4)

1. Slacken the screw fastening the timing belt guide pulley.
2. Remove the timing belt.

Refit reversing the sequence described for removal and observing the following instructions:

• Make sure that the first cylinder is in the bursting stroke, checking the alignment of the notches on the timing belt pulleys with the corresponding references.
• Install the timing belt making sure that the teeth are correctly coupled on all the pulleys.

WARNING: To avoid harming the structure of the fibres forming the belt, never bend it sharply when assembling.

1. On tool N° 1.824.016.000 (C.2.0129) install support N° 1.824.017.000 (C.2.0130).
2. Position the weight with the knurled part, at a distance of 120 mm on the millimetred rod and lock it.

1. Install the resulting tool on the belt tensioner, as illustrated, and adjusting the joint, set the millimetred rod to horizontal.

• Settle the toothed belt turning the crankshaft twice in its direction of rotation.

2. Tighten the belt tensioner fastening nut to the specified torque.

WARNING: During the last phase, the millimetred rod might move from its horizontal position; in this case, working on the belt tensioner, it is necessary to restore the original position of the millimetred rod and repeat the operation.

37 ÷ 46 Nm, 3.8 ÷ 4.7 kgm

• Remove the belt tensioning tools.
• Tension the auxiliary component drive belts (see specific paragraphs).