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. GALANT II (A16_)
2. GALANT II Saloon (A16_)
3. GALANT Mk II (A16_)
4. GALANT II Station Wagon (A16_V)
5. GALANT II Break (A16_V)
6. GALANT Mk II Station Wagon (A16_V)
7. PAJERO I Canvas Top (L04_G)
8. MONTERO � Canvas Top (L04_G)
9. PAJERO/SHOGUN Mk II Canvas Top (L04_G)
10. PAJERO/SHOGUN I Canvas Top (L04_G)
11. PAJERO I (L04_G, L14_G)
12. PAJERO I (L04_G, L14_G, NA, NB, NC, ND, NE, NF, NG)
13. MONTERO � (L04_G, L14_G)
14. PAJERO/SHOGUN � (L04_G, L14_G)
15. PAJERO/SHOGUN I (L04_G, L14_G)
16. L 300 / DELICA II Bus (LO3_P/G, L0_2P)
17. EXPRESS II Bus (LO3_P/G, L0_2P, SA, SB, SC, SD, SE)
18. DELICA II Bus (LO3_P/G, L0_2P)
19. L 300 III Van (P0_V, P1_V, P_2V)
20. EXPRESS III Van (SF, SG, SH, SJ, WA, P0_V, P1_V, P_2V)
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.