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. 323 S VI (BJ)
2. 323 PROTEGE VI (BJ)
3. PROTEGE VI (BJ)
4. ALLEGRO MK VIII (BJ)
5. 323 S Mk VI (BJ)
6. FAMILIA VI (BJ)
7. ETUDE VI (BJ)
8. 323 F VI (BJ)
9. 323 ASTINA VI (BJ)
10. PROTEGE5 VI (BJ)
11. 323 F/P Mk VI (BJ)
12. 626 V Hatchback (GF)
13. CAPELLA V Hatchback (GF)
14. 626 Mk V Hatchback (GF)
15. 626 V (GF)
16. 626 V Saloon (GF)
17. CAPELLA V (GF)
18. 626 Mk V (GF)
19. 626 V Station Wagon (GW)
20. CAPELLA V Station Wagon (GW)
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.