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. CARINA II Saloon (_T15_)
2. CARINA Mk II Saloon (_T15_)
3. CARINA II (_T15_)
4. CARINA II Liftback (_T15_)
5. CARINA Mk II (_T15_)
6. CARINA II Saloon (_T17_)
7. CARINA Mk II Saloon (_T17_)
8. CARINA II (_T17_)
9. CARINA II Liftback (_T17_)
10. CARINA Mk II (_T17_)
11. CAMRY Liftback (_V1_)
12. CAMRY Saloon (_V1_)
13. CAMRY (_V2_)
14. CAMRY Saloon (_V2_)
15. CAMRY (_V1_)
16. SCEPTER (_V1_)
17. CAMRY Estate (_V2_)
18. CAMRY Estate (_V1_)
19. SCEPTER Estate (_V1_)
20. CELICA Hatchback (_T16_)
21. See more in applications

The operation of the timing belt tensioner

The JAPKO 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.