A BLUE PRINT brand Tensioner Pulley, timing belt is a part of the timing belt drive, which serves to bypass the belt in a certain place or several places and is a freely rotating pulley of small diameter.

The composition of the roller is small: it is the roller mount, the internal rolling bearing with a protective oil seal, and the working body of the roller itself, which is in contact with the belt.

1. SPACE WAGON (N3_W, N4_W)
2. NIMBUS (N3_W, N4_W, UF)
3. EXPO (N3_W, N4_W)
4. CHARIOT (N3_W, N4_W)
5. SONATA III (Y-3)
6. SONATA III Saloon (Y-3)
7. SONATA Mk II (Y-3)
8. SONICA III (Y-3)
9. CARNIVAL / GRAND CARNIVAL III (VQ)
10. SEDONA III (VQ)
11. GRAND SEDONA III (VQ)
12. SEDONA Mk II (VQ)
13. CARNIVAL / GRAND CARNIVAL II (VQ)
14. VQ III (VQ)
15. GALANT VI (EA_)
16. GALANT VI Saloon (EA_)
17. GALANT / ASPIRE Mk VI (EA_)
18. ASPIRE VI (EA_)
19. GALANT VI Estate (EA_)
20. GALANT Mk VI Estate (EA_)
21. See more in applications

The principles of the timing belt tensioner work

Excessive tension leads to intensive wear of the timing parts - pulley bearings (water pump, generator, tensioner, etc.), the belt itself, and others. In addition, a tight belt stretches faster and shortens its service life. Too little preload is fraught with more serious problems - slipping of the belt along the toothed pulleys of the camshafts, which leads to a violation of the valve timing and deterioration of the entire engine.

Therefore, a tensioning device is introduced into the timing drive in the form of rollers of one design or another, which, during engine operation, maintain an optimal belt tension.