The timing belt tensioner is a load-bearing pulley located on an adjustable axle. Its main function is belt tension; additional functions are to damp drive vibrations and increase the angle of the camshaft pulley wrap.

1. DUCATO Van (290_)
2. DUCATO Bus (230_)
3. DUCATO Van (230_)
4. DUCATO Bus (244_)
5. DUCATO Van (244_)
6. MASTER II Van (FD)
7. MASTER II Platform/Chassis (ED/HD/UD)
8. MASTER II Bus (JD)
9. DUCATO Platform/Chassis (290_)
10. DUCATO Platform/Chassis (230_)
11. DUCATO Platform/Chassis (244_)
12. DUCATO Panorama (290_)
13. DAILY I Platform/Chassis
14. DAILY II Platform/Chassis
15. DAILY I Van
16. DAILY II Van
17. DAILY II Bus
18. DAILY SCUDATO II Bus
19. MASCOTT Platform/Chassis
20. MASCOTT Van
21. See more in applications

The operation of the timing belt tensioner

The FEBI BILSTEIN brand Tensioner, timing belt is a bearing with a pulley on the outer cage. Depending on the design, the tensioning mechanism can be made in the form of an eccentric pressed into the inner bearing race, or placed on a separate bracket. The bearing cage is packed with grease and covered with a lip. You can order an automatic tensioner, it is a little more complicated, but the roller itself has no fundamental differences.

Timing belt tension is designed for a specific force and must be consistent. Selecting a timing belt tensioner pulley that is too loose can cause the belt to slip through the timing belt teeth. This is unacceptable, since it will lead to a shift in the phases of the valve operation relative to the movement of the pistons.