Tom West's Custom PC77 PumpMaster Classic Short Rifle
Sounds like you need to spin the sealMarch 16 2011 at 11:56 PM
CO222 (Login CO222)
Crosman Forum Member
from IP address 18.104.22.168
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.
Crosman Corporation 1-800-724-7486
This forum is not affiliated with the Crosman Corporation in any way// Information presented in this forum is intended for informational purposes only; use at your own risk//Posts made to this forum are soley the opinion of the individual member