To replace the inner constant velocity joint (CV) seals, drain the oil from the gearbox (see "Checking the level, topping up and replacing oil in a manual transmission").
NOTE: The inner CV joint seals can be replaced without removing the transmission from the vehicle.
1. Place the vehicle on an inspection pit or lift.
2. To replace the inner joint oil seal, remove the wheel drive from the side of the oil seal being replaced (see "Removal and installation front wheel drives").
3. Remove the seal with a screwdriver.
4. Lubricate the working edge of the oil seal with transmission grease and press it in using a mandrel of a suitable diameter with the working edge inside the gearbox.
5. Replace the second seal in the same way.
6. Install the removed parts in the reverse order of removal.
The reason for the oiling of the clutch disc of a car with a manual transmission may be a leak in the primary shaft seal of the gearbox or the rear seal of the crankshaft.
Engine and transmission oils have different smells. Therefore, with a certain amount of skill, you can determine which seal is defective: the primary shaft seal or the rear crankshaft seal.
USEFUL TIP: There is another way to determine the type of oil. Drop the oil into a thin layer of water poured into a vessel (you can fall into a puddle). The transmission oil will spread across the entire surface of the water in the form of a rainbow film, and the motor oil will remain in the form of a drop, similar to a grain of lentil.
To replace the input shaft seal, you must remove the gearbox from the vehicle (see "Removal and installation of a manual gearbox").
You will need: the same tools as for replacing the clutch release slave cylinder with the clutch release bearing (see "Replacing the clutch release drive slave cylinder with the clutch release bearing"), as well as a 10 mm spanner and a screwdriver.
1. Remove the clutch release drive slave cylinder with the clutch release bearing (see "Replacing the clutch release drive slave cylinder with the clutch release bearing").
2. Use a screwdriver to remove the seal from the working cylinder housing.
3. Lubricate the working edge of the oil seal with transmission oil and press it into the working cylinder body using a mandrel of a suitable diameter, orienting it so that when installing the cylinder, the working edge of the oil seal is directed towards the inside of the gearbox.
4. Install the parts in the reverse order of removal.