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. COUPE (GK)
2. TIBURON (GK)
3. TIBURON / COUPE (GK)
4. TUSCANI (GK)
5. TRAJET (FO)
6. TUCSON (JM)
7. JM (JM)
8. TUCSON I (JM)
9. SPORTAGE (JE_, KM_)
10. SPORTAGE II (JE_, KM_)
11. CARENS III MPV (UN)
12. RONDO III MPV (UN)
13. CEE'D Hatchback (ED)
14. CEE'D SW (ED)
15. i30 (FD)
16. ELANTRA (FD)
17. AVANTE (FD)
18. i30 I (FD)
19. i30 Estate (FD)
20. i30 I Estate (FD)
21. See more in applications

The operation of the timing belt tensioner

The JAPANPARTS 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.