Tensioner, timing belt - 500601 CAFFARO

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. TRAFIC Bus (TXW)
2. 131 (131_)
3. SUPERBRAVO (131_)
4. ARGENTA (132_)
5. ARGENTA Saloon (132_)
6. DUCATO Panorama (280_)
7. DUCATO Bus (230_)
8. 131 Familiare/Panorama (131_)
9. DUCATO Van (230_)
10. DUCATO Van (280_)
11. DUCATO Panorama (290_)
12. DUCATO Van (290_)
13. TRAFIC Platform/Chassis (P6)
14. TRAFIC Rodeo (P6)
15. TRAFIC Van (TXX)
16. ARENA Combi (A97)
17. ARENA Van (TB, TF)
18. MOVANO Van (X70)
19. MOVANO Platform/Chassis (X70)
20. MOVANO Bus (X70)
21. See more in applications

The operation of the timing belt tensioner

The CAFFARO 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.