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. DUSTER (HS_)
2. CUBE (Z12)
3. SCENIC III (JZ0/1_)
4. GRAND SCENIC III (JZ0/1_)
5. SANDERO
6. LOGAN (LS_)
7. LOGAN MCV (KS_)
8. LOGAN EXPRESS (FS_)
9. LOGAN Pickup (US_)
10. NV200 / EVALIA Bus
11. EVALIA Bus
12. NV200 Bus
13. NV200 Van
14. KANGOO Express (FW0/1_)
15. KANGOO Rapid (FW0/1_)
16. KANGOO / GRAND KANGOO (KW0/1_)
17. KANGOO (KW0/1_)
18. CLIO III (BR0/1, CR0/1)
19. EURO CLIO III (BR0/1, CR0/1)
20. CLIO CAMPUS III (BR0/1, CR0/1)
21. See more in applications

The operation of the timing belt tensioner

The FAI AutoParts 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.