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. LAND CRUISER PRADO (_J15_)
2. LAND CRUISER 90 (_J9_)
3. LAND CRUISER PRADO (_J9_)
4. LAND CRUISER COLORADO (_J9_)
5. MERU (_J9_)
6. HIACE / COMMUTER V Bus (TRH2__, KDH2__, LH2__)
7. VENTURY V Bus (TRH2__, KDH2__, LH2__)
8. QUANTUM V Bus (TRH2__, KDH2__, LH2__)
9. HIACE V Van (TRH2__, KDH2__, LH2__)
10. QUANTUM V Van (TRH2__, KDH2__, LH2__)
11. DYNA Platform/Chassis (KD_, LY_, _Y2_, _U3_, _U4_)
12. FORTUNER (_N5_, _N6_)
13. SW4 (_N5_, _N6_)
14. HILUX SW4 (_N5_, _N6_)
15. HIACE IV Bus (__H1_, __H2_)
16. HILUX VI Pickup (_N1_)
17. TACOMA VI Pickup (_N1_)
18. HILUX MIGHTY X / HILUX TIGER VI Pickup (_N1_)
19. HIACE IV Van (__H1_, __H2_)
20. HIACE SBV IV Van (__H1_, __H2_)
21. See more in applications

The operation of the timing belt tensioner

The BLUE PRINT 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.