Clutch slave cylinder — check and replacement (Opel Zafira A)

This operation requires a lot of effort and time, so we recommend performing it only if signs of a malfunction of the clutch release slave cylinder are detected during the technical condition check of the clutch (see "Clutch - checking technical condition") or when removing the gearbox (see "Gearbox - removal and installation"). In addition, removal of the clutch slave cylinder is necessary to replace the gearbox primary shaft seal and the clutch slave cylinder housing sealing ring, if they are found to be faulty (see "Manual gearbox - technical condition check").

1. Prepare the car for work (see "Preparing the car for maintenance and repair").

2. Remove the gearbox (see "Gearbox - removal and installation").

3. Check the ease of rotation and absence of play of the release bearing, as well as absence of traces of leakage of brake fluid from the clutch slave cylinder. If the above faults are detected, it is necessary to replace the clutch slave cylinder (see "Clutch slave cylinder - check and replacement"). The presence of traces of oil leakage along the primary shaft of the gearbox indicates a malfunction of the primary shaft seal of the gearbox (see "Gearbox primary shaft seal - replacement"), oil leaks between the clutch slave cylinder and the gearbox housing - a malfunction of the clutch slave cylinder housing sealing ring (see below).



4. To replace the clutch release slave cylinder, use a special 10 mm wrench for brake system nipples to unscrew the nipple of the slave cylinder tube.

Warning: If the tube starts to rotate together with the nozzle, it must be replaced.

Original posted on the website: OpelBook.ru



5. If it is necessary to replace the tube, use pliers with narrow jaws to squeeze the plastic sleeve clamps.



6. While holding the clamps in a compressed state, use a slotted screwdriver to push the sleeve upwards.



7. Using two slotted screwdrivers, hold the plastic sleeve in the upper position and push the tube down.





8. Remove the clutch slave cylinder tube.



9. Using a 5 mm Allen key, unscrew the three bolts securing the clutch release slave cylinder.

10. Remove the clutch slave cylinder by sliding it along the primary shaft tail.

Recommendation: When replacing the clutch slave cylinder, be sure to replace the sealing ring.

11. Install the parts in reverse order.

Recommendation: Apply anaerobic thread locker to the slave cylinder mounting bolts.

12. After assembly, bleed the clutch release hydraulic drive (see "Clutch release hydraulic drive - bleeding").