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. ASTRA J (P10)
2. ASTRA G Hatchback (T98)
3. CRUZE (J300)
4. CRUZE Hatchback (J305)
5. CIVIC VII Hatchback (EU, EP, EV)
6. MERIVA A MPV (X03)
7. ASTRA G Saloon (T98)
8. ASTRA G Estate (T98)
9. CORSA D (S07)
10. ZAFIRA / ZAFIRA FAMILY B (A05)
11. MOKKA / MOKKA X (J13)
12. CRUZE Station Wagon (J308)
13. TRAX
14. TRACKER
15. TRAX SUV
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The operation of the timing belt tensioner

The ASHIKA 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.