HiI've just put new seals in the pressure tubes of my 500cc Sumatra and after the second set it looked like it was holding air. I was away for a few days and when I got back it looked like the gun had lost 20 bar in about two weeks. I have sprayed wd40 around the sight clamp fill end and the valve area and can see no bubbles. The only place it may be leaking is through the transfer port hole of the valve. Do you think this air loss is acceptable or would you strip it down again to improve and try and make perfect ?Many thanks.
Thanks for the replies I know you're right so out will come the seals for inspection and replacement. When the valve holder is bolted in the top air tube I (using a long screwdriver) didn't tighten the valve return spring holder up very tight I wonder how tight this should be to compress the "o" ring ?