Checking the condition and replacing the powertrain suspension supports (Opel Corsa C)

Note: Depending on the engine brand and vehicle model, the power unit suspension can be carried out using three or four supports.

Examination

1. The engine is rigidly connected to the transmission assembly and has a common suspension with it, which is made in the form of a subframe and 4 supports - the right and left supports are attached to the side members, and the front and rear supports are attached to the subframe. The general layout of the powertrain suspension supports is shown in the accompanying illustration. Depending on the model, the appearance and attachment points of the supports may differ.



2. If necessary, jack up the front of the vehicle and support it to ensure free access. If equipped, remove the crankcase guard.

3. Check the condition of the rubber support cushions. If cracks, delamination, separation from the metal base, signs of rubber hardening, or other similar defects are detected, replace the support.



4. Using a torque wrench, check the tightening force of the support fasteners.

5. Using a crowbar, check the bearings for signs of excessive play - if necessary, ask an assistant to rock the unit in different directions and observe the behavior of the bearings. Play present in new components leads to rapid wear of the bearings. Replace defective components.

Replacement

Right support

6. To remove the right support, it is necessary to install special devices and unscrew the bolts securing the support to the side member and to the engine bracket (see Section 5).

Left support

7. To remove the left support at the service station, the same set of tools is used as for removing the right one (see Section 5). It is also possible to use a jack or winch-type lifting equipment.

8. The left support is installed in the side member niche and is attached via an adapter to the bracket attached to the transmission.

9. To remove the support, you must first unscrew the 2 bolts securing the adapter to the bracket (see accompanying illustration), and then 4 bolts (one bolt is not shown in the illustration) support fastenings to the side member. Remove the support together with the adapter. If necessary, unscrew the 3 bolts and remove the support bracket of the fasteners from the transmission.

Note: To gain access to the support on diesel engines, it may be necessary to remove the fuel filter (see Chapter 1).

10. If necessary, secure the adapter in a vice to separate the support from the support (see accompanying illustration) and remove the single bolt that goes through the center of the support cushion.



11. Installation is carried out in the reverse order. Make sure that all fasteners are tightened to the required force.

Front/rear supports

12. When removing the front (with appropriate equipment) and the rear supports must be unloaded without fail. For this purpose, you can use a trolley jack, a winch-type lifting device or a special MKM-883 kit for hanging the power plant (see Section 19).

13. When lifting the power unit, be careful - do not load the exhaust system, if necessary, disconnect the exhaust pipe (see Chapter 4).

14. To remove the front support (see accompanying illustration) first, unscrew the 2 bolts that secure it to the power unit, then loosen the nut and remove the support axle bolt.





15. The rear support mounting may vary depending on the engine model. Mounting options are shown in the accompanying illustrations. Unscrew the corresponding bolts and remove the support.

18.15a. Z14XE rear engine mount mounting bolts

18.15b. On these models, it is additionally necessary to unlock the guide (3) of the gearshift lever and move it to the side (z18XE engine): 1. Rear support mounting bolts; 2. Retainer; 4. Rear support mounting bracket

16. Check the condition of all support components. Replace worn or damaged parts.

17. Installation is carried out in the reverse order of removal, tighten the mounting bolts and nuts with the required force. Lower the car to the ground.