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. OMEGA B (V94)
2. OMEGA B Estate (V94)
3. 900 II
4. 900 II Convertible
5. 9000
6. 9000 Hatchback
7. VECTRA B Hatchback (J96)
8. VECTRA B (J96)
9. VECTRA B Estate (J96)
10. 900 II Coupe
11. OMEGA (B) Saloon (V94)
12. OMEGA (B) Estate (V94)
13. 9-5 (YS3E)
14. 9-5 Saloon (YS3E)
15. VECTRA (B) Saloon (J96)
16. VECTRA (B) Hatchback (J96)
17. VECTRA (B) Estate (J96)
18. 9-5 Estate (YS3E)
19. See more in applications

The operation of the timing belt tensioner

The VAICO 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.