This is exactly what happened on my exedy clutch; mine had the four springs as yours. Ended up getting just the friction plate and it looked stronger and also had six springs. Done roughly 30,000 miles on it so far but suspect it is nearing the end of its life :sad:First off I'd like to thank Jim Jones for helping me out! top job by a top bloke
but the route of the problem was that the spring had came out of the friction plate and had become lodged between the pressure plate and clutch plate
:chained: