Removal and installation a multi-ribbed accessory drive belt (Opel Vectra C)

1. The operations for removing and installing a multi-rib drive belt are in most cases similar for all engines, the differences are determined only by the variants of the tension roller arrangement and the associated features.

2. The multi-rib belt is designed to drive auxiliary units such as the generator, water pump and air conditioner pump unit. Depending on the engine model and configuration, the number of drive units may be different, and the belt length will be different accordingly - be careful when buying a new belt for your car. Before removing the belt, it is recommended to draw a diagram of its tension.

3. On the models covered by this Manual, the multi-rib belt is removed from below - the vehicle must first be raised on a lift.

4. On petrol models, remove the multi-rib belt cover; on diesel models, remove the engine crankcase guard.

5. If the belt is to be reused, mark it with a marker before removing it from the pulleys (in the form of an arrow) to determine the direction of rotation of the multi-rib belt during subsequent installation.

Note: The belt rotates clockwise when viewed from the belt drive side of the engine. If a previously used belt is installed without observing the direction of rotation, it will be subject to increased wear and will quickly fail.

Z16XE/Z18XE engines

6. To loosen the multi-rib belt, use the center bolt of the tension roller (see illustration), for which, using a regular wrench (15 mm), press it in the direction of the arrow and fix it with a locking rod. Then remove the belt.





7. When installing, place the multi-ribbed belt on the drive pulleys. Using a wrench, slightly press the tension roller in the direction of the arrow (see illustration 7.6) and remove the locking rod. Then slowly turn the key clockwise - the multi-rib belt will be tightened.

9. Install all removed components and lower the vehicle onto its wheels.

10. Turn the tensioner (see illustration) by the bolt in the direction of the arrow and loosen the multi-rib belt.

Engines Z20NET/Z22SE/Z22YH

11. After installing the multi-rib belt, check the position of the tensioner lever (see illustration) - when the belt is tensioned, the control mark on the lever should be between the marks limiting the position of the lever.

12. Replace the multi-rib belt cover and lower the vehicle onto its wheels.

Z32SE Engine

13. Disconnect the negative battery cable. Release the 2 power steering hydraulic lines from their holders on the subframe, then remove the air intake

14. A special feature of this engine is that to replace the multi-rib belt it is necessary to remove the right engine support

15. Before removing the belt, check the adjustment of the tensioner; the belt tensioner lever should be positioned between the stops on the base plate (see illustration)





16. Turn the multi-rib belt tensioner clockwise with a spanner and remove the belt.

17. Installation is carried out in reverse order.

Engines Y20DTH/Y22DTR/Y30DT

18. To loosen the multi-ribbed belt, turn the tensioner by the hex key (see illustration) counterclockwise and remove the belt from the pulleys.

Note: The appearance of the Y30DT engine tensioner is slightly different from that shown in the illustration.

Material copied from this website: OpelBook

19. Diagrams for installing multi-rib belts are shown in the accompanying illustrations.

Z19DT(H) Engines

19. First remove the engine crankcase guard.

20. Loosen the multi-rib belt by turning the tensioner with a special key (see illustration 7.20a) in the direction of the arrow and lock the tensioner in this position with the locking rod (see illustration 7.20b),then remove the belt.





21. Installation is carried out in reverse order.