V-belt routing diagram
Diesel engines with air conditioning |
Diesel engines without air conditioning |
1 - Tension roller; 2 - Crankshaft; 3 - Coolant pump; 4 - Generator; 5 - Deflection roller; 6 - Compressor; 7 - Power steering pump
Removal
1. Turn the tensioner counterclockwise with a Torx head, thus loosening the V-belt.
2. Fix the tensioner in this position. To do this, insert the pin through the holes in the front part and the tensioner body. The pin can be made independently from a rod. Dimensions: length approximately 50 mm, diameter = 4 mm.
3. Remove the V-belt.
Caution! When performing further work on the engine or timing case cover, the tensioner must be loosened.
Examination
1. Check the pulley grooves for damage and dirt, clean or replace the pulley if necessary. Pay attention to wear on the tensioner supports and pulley defects.
2. If the supports are worn out, the tensioner must be replaced.
3. A V-belt with dirt inclusions between the ribs, weakened ribs, fraying, transverse cracks and rib breaks must be replaced, also refer to Chapter Routine maintenance.
Installation
1. Install the V-belt, starting with the tension roller.
2. Turn the tensioner slightly counterclockwise, thus loosening the locking pin.
3. Remove the locking pin.
4. Turn the front part of the tensioner slowly clockwise with a key and thus tighten the V-belt.
Attention! Tighten the belt slowly, do not release the tensioner.