Originally Posted by Lawpass
Are you sure its the cupseal and not the valve o-ring thats leaking? You might try putting some oil in there and see if it does anything.
I'm sure, because the valve o-rings were perfect and I re-oiled them before I but the valve back in, also when I messed with the cupseal the leak stopped for a bit and came back. This happened once before and I just swapped the cupseal and it stopped but now its back