justin_o_guy2
Serious Thumper
   
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What happened?
Posts: 55279
East Texas, 1/2 dallas/la.
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Dave, I just don't know what to say.. Thank You, and WOW, Not a yes or no answer, but a scientific, absolute, yes, and how much..
Ohh, and in the FWIW column. I gutted the old petcock.
I THINK the spring behind the On/Reserve/Prime lever would cut down and make two springs for the Verslavy . I saw some nasty black goo built up around the vacuum hole and on the reinforcement disk for the diaphragm. The tapered o ring that seals off the fuel when there is no vacuum looks to be deteriorating, explaining why fuel drips by. The diaphragm membrane looks intact, but seems like the seal around the metal piece in the center is just barely leaking. Grand idea, I LIKE a vacuum petcock, but, these fail.
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