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. SPACE WAGON (N3_W, N4_W)
2. NIMBUS (N3_W, N4_W, UF)
3. EXPO (N3_W, N4_W)
4. CHARIOT (N3_W, N4_W)
5. GALANT V Saloon (E5_A, E7_A, E8_A)
6. GALANT Mk V Saloon (E5_A, E7_A, E8_A)
7. ETERNA V Saloon (E5_A, E7_A, E8_A)
8. GALANT V (E5_A, E7_A, E8_A)
9. GALANT V (E5_A, E7_A, E8_A, HJ)
10. GALANT Mk V (E5_A, E7_A, E8_A)
11. PERSONA 400 Hatchback (C9_C, C9_S)
12. WIRA Hatchback (C9_C, C9_S)
13. PERSONA 400 (C9_S)
14. PERSONA Saloon (C9_S)
15. WIRA (C9_S)
16. SPACE RUNNER (N1_W, N2_W)
17. RVR (N1_W, N2_W)
18. GALANT VI (EA_)
19. GALANT VI Saloon (EA_)
20. GALANT / ASPIRE Mk VI (EA_)
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.