You mean it leaks out of the side of it I assume?
Yeah piece of the proverbial
There was a thread I responded to a while back but can’t seem to find it.
Pull it apart again & clean the face of the back of the tap against a fine oil stone or v.fine sandpaper on a flat surface (glass). Bend the wavy washer thingy a bit to put more preload on it. This is the main key I think.
My 91 only had 2 of the possible 3 or 4 screws holding it together so I added the others (M3 bolts) so don’t know if this is std or not.
Obviously look at the rubber bits to see any damage which I guess you have already done.
Stopped the leak ever since.