Removing
1. Remove the gearbox from the car (see "Gearbox - removal and installation").
2. Remove the clutch parts from the crankcase (see "Clutch release drive elements installed in the crankcase - removal and installation").
3. Carefully, so as not to scratch the input shaft of the gearbox, we break through the oil seal with a small chisel or center punch.
4. Using thin pliers, remove the input shaft oil seal from the seat.
Installation
We lubricate the working edge of the new gearbox input shaft oil seal with gear oil and press it in, using the old oil seal as a mandrel.