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. TOURNEO CONNECT
2. TRANSIT CONNECT
3. TRANSIT CONNECT (P65_, P70_, P80_)
4. FOCUS II (DA_, HCP, DP)
5. FOCUS II Turnier (DA_, FFS, DS)
6. FOCUS II Station Wagon (DA_, FFS, DS)
7. FOCUS II Saloon (DB_, FCH, DH)
8. GALAXY (WA6)
9. S-MAX (WA6)
10. MONDEO IV (BA7)
11. MONDEO IV Turnier (BA7)
12. C-MAX (DM2)
13. MONDEO IV Saloon (BA7)
14. 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.