Gearbox primary shaft seal — replacement (Opel Zafira A)

The primary shaft seal of the gearbox is installed in the housing of the clutch slave cylinder. When the primary shaft seal wears out, oil from the gearbox gets into the clutch housing. This can cause the clutch discs to become oily. The first sign of a malfunction is the presence of oil leaks at the bottom of the joint between the clutch housing and the engine cylinder block (see "Manual gearbox - technical condition check"). However, a final judgement about the oil seal malfunction can only be made after removing the gearbox, in which case it is advisable to check the clutch slave cylinder and release bearing and, if they are found to be faulty, replace the oil seal assembly with the clutch release slave cylinder (see "Clutch slave cylinder - check and replacement").

Sequence of execution

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

2. Remove the clutch release slave cylinder (see "Clutch slave cylinder - check and replacement").

3. Using a slotted screwdriver, remove the gearbox primary shaft seal.



4. Lubricate the working edge of the new seal with transmission oil and press it in using a mandrel of a suitable diameter.





5. Install the parts in reverse order.