Quote:
Originally Posted by Fast31
Check every float valve with a manual vacuum pump. If they hold vacuum they’re good. I had 5 leaking, including 2 new ones! Then I got me a viton tipped one and that held vacuum and did not leak fuel.
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I check all of them with a hand held vacuum pump. I buy them a dozen at A time or more and honestly if 7 are ok that’s about the average, and that’s with the Viton tips units. I did a carb yesterday that had A unique shape but it was viton and it was awesome. Jim, I must not have as good a luck as you. I know it’s nit the gaskets because the valves them selves not installed won’t hold vacuum. Just my experience and I’m a pretty tentative rebuilder/restorer .
Larry shepard