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Sounds like you need to spin the seal

March 16 2011 at 11:56 PM

CO222  (Login CO222)
Crosman Forum Member
from IP address 199.27.130.186


Response to 1377c - Was Leaking Down, now it isn't(sort of), does this make sense?!?!?

Acetal is a hard seal material so it's not forgiving of eccentricity. Nothing's to say
that either the valve seat or seal are perfectly concentric. It's common practice to
apply some lapping paste and spin the seal on the seat (e.g. with drill).
To make your own lapping paste, scrape some of that 1200 grit off with a blade and mix
with cutting oil or other.

 
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