Hi Max,
Problem is I keep trying, then I mix needles and caps till I get something that works. Then I ended up with a small container that I put needles that don't work, either sticking or flooding so really now I don't know what is what. Once I get a pair that work they usually are good and I don't often get people coming back with problems, I do get them but hard to tell because I haven't sold many over the last 12 months or so. They have driven me mad and I don't think I have the interest in fighting with them anymore, they are just too problematic. It is very hard to tell what the seat is like but they look almost flat with no taper on the seat which can cause either the edge to grab the viton or vise versa not seal. I polish them all but I'm not sure if that is enough with the flat seat
Last edited by NormK; 28/09/22 08:45 PM.