Woowee. Did you have it resurfaced and blue-printed?
Maybe? I don’t know for sure LOL. I sent it to Doug at http://www.type356a.com and explained what problems the sediment in my fuel line seemed to be causing, and he sent it back saying it is now holding vacuum and making a constant 2.5 psi with no leaks. Pretty sure it got new valve seats pressed in and cut, as he seems to insist on that in any pump he handles. His website is a pretty neat read.