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. LANCER III Station Wagon (C1_V, C3_V)
2. LANCER III Break (C1_V, C3_V)
3. LANCER Mk III Station Wagon (C1_V, C3_V)
4. LANCER IV Hatchback (C6_A, C7_A)
5. LANCER IV Hatchback (C6_A, C7_A, CA, CB)
6. LANCER Mk IV Hatchback (C6_A, C7_A)
7. GALANT IV Saloon (E3_A)
8. GALANT IV Saloon (E3_A, HG, HH)
9. GALANT Mk IV Saloon (E3_A)
10. ETERNA IV Saloon (E3_A)
11. GALANT IV (E3_A)
12. GALANT IV (E3_A, HG, HH)
13. GALANT Mk IV (E3_A)
14. ETERNA IV (E3_A)
15. SPACE WAGON (D0_V/W)
16. NIMBUS (D0_V/W, UA, UB, UC)
17. CHARIOT (D0_V/W)
18. L 300 / DELICA II Bus (LO3_P/G, L0_2P)
19. EXPRESS II Bus (LO3_P/G, L0_2P, SA, SB, SC, SD, SE)
20. DELICA II Bus (LO3_P/G, L0_2P)
21. See more in applications

The operation of the timing belt tensioner

The FEBI BILSTEIN 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.