Agree with everyone so far. I had the same on the 996 with the bearing seizing. Also used the uprated slave cylinder to improve the clutch pull. If it is a seized bearing it could also have worh the inside on the slave cylinder where the seal seats in so might not be/wont be a good seal for the piston seal against the cylinder? Worth replacing if you can get one of the uprated slaves but the bearing would be my first check. |