Conditions: The tension roller is locked with the locking tool "T10265" and fixed "1" on the right stop. Fix the camshaft hub with the locking pin of the direct injection pump of the diesel engine "3359". Screw in the bolts "arrows" by hand. The gear of the toothed belt of the camshaft should still rotate, but should not wobble. The crankshaft is fixed with the crankshaft stopper "T10050".

Secure the hub of the high-pressure fuel pump with the locking pin of the direct injection pump of the diesel engine "3359". Bolts "1" remain loosely screwed in. The gear of the toothed belt of the high-pressure pump should still rotate, but should not wobble.

If necessary, rotate the high-pressure pump toothed belt gear with the screwdriver "arrows" by the heads of the bolts "1" so that the hub can be locked with the locking pin.

Rotate the camshaft and high-pressure pump toothed belt gears in their longitudinal holes clockwise until they stop. Install the toothed belt in the specified sequence.

- 1. Crankshaft timing belt pulley
- 2. Tension roller
- 3. Timing belt gear of the camshaft
- 4. Coolant pump toothed belt gear
- 5. High pressure pump toothed belt pulley
- 6. Intermediate roller
Loosen nut "1" of the tension roller and remove the lock "T10265". Ignore the "arrow".

Pay attention to the proper fit of the tension roller in the rear timing belt housing "arrow".

Install the counter support "T10172" on the camshaft timing belt gear as shown in the figure. Turn the counter support counterclockwise "arrow" and hold in pretension. In this position, tighten bolts -1 of the camshaft timing belt gear and bolts "2" of the high-pressure pump timing belt gear. Tightening torque 20 Nm.

Now carefully rotate the tension roller eccentric with the angle screwdriver "T10264" in the clockwise direction "arrow" until the pointer "2" is opposite the recess of the support plate. Nut "1" must not be turned. Hold the tension roller in this position and tighten the nut. Remove the locking pin "3359" and the crankshaft stopper "T10050".

(The text is based on materials from the website: «AUDIMANUAL.ru»)
