Quote:
Originally Posted by Alex
PDF added to that post.
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Thank you much.
Quote:
Originally Posted by choneofakind
Interesting find.
You might want to try some of that gas tank epoxy. Glob it in there, then take some time with a file to get a smooth surface for your o-ring to seal on.
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No reason not to try on the bad one once I get a replacement. I could use the old O-ring/pin ("piston") to form it while it's still malleable because that is a replaceable part.
Both rubber films were practically glued to the surfaces they contact and went through a lot of stress when I took it apart so I am still going to replace it for peace of mind and then I can play with this one without worry. The surface still looks gunky and might affect adhesion, so I may need to go ahead and remove the whole ring and clean it rigorously, which I can't do now because it's my only petcock (much bigger leak if the rest of the ring flakes off).
Edit: Perhaps
this stuff will do the trick.