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. ASTRA F Hatchback (T92)
2. ASTRA F (T92)
3. OPTIMA F (T92)
4. ASTRA F Estate (T92)
5. ASTRA G Hatchback (T98)
6. ASTRA G Estate (T98)
7. VECTRA A Hatchback (J89)
8. ASTRA F Estate Van (T92)
9. ASTRA G Estate Van (F70)
10. ASTRA G Delvan (F70)
11. 323 III Hatchback (BF)
12. ASTINA / ETUDE III Hatchback (BF)
13. FAMILIA MK V Hatchback (BF)
14. FAMILIA III Hatchback (BF)
15. ETUDE III Hatchback (BF)
16. 323 III (BF)
17. 323 III Saloon (BF)
18. FAMILIA MK V (BF)
19. FAMILIA III (BF)
20. ETUDE III (BF)
21. See more in applications

The operation of the timing belt tensioner

The ASHIKA 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.