GTA
All Springer/NP/PCP Air Gun Discussion General => European/Asian Air Gun Gates => China/Asian AirGun Gate => Topic started by: StevenG on June 06, 2014, 10:19:03 AM
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I have a leaking valve seal, Mike sent me a new valve stem and the gun now works fine. Since I am not smart enough to leave well enough alone I want to know how to fix the old valve stem/seal. I have nothing to base this on other than google image search, but I suspect it is not a concept unique to the FDPCP, since it appears all these guns work in a similar manner, striker hits valve, knocks it back and air goes past.
I need to get the old seal out without damaging the brass and find out what the heck to use as a replacement seal, ideas?
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Some of the early Crosmans were threaded, others were pressed together. These, being a copy of the C160 valve stem, could be either way. Once the brass is removed from the stem, making a Delrin seal to replace the urethane is easy. Then just reassemble the stem and finish cut the seat.
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Sounds like I would need way more tools then I have to cut a piece of delrin like that. I guess I will keep it for the future.
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:-[ :-[ :-[ OOops, I got the impression you had a Mini-Lathe. :-[ Try using a dental pick to gently remove the old seal, and possibly a 90 Duro urethane or Viton O-ring to replace it. ;)
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Not yet, that is another toy I will need. Thanks.
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If you hit Craigslist for you area, you may find a larger lathe for about the same money as you'd spend on a Mini. Like this one (http://buffalo.craigslist.org/tls/4497514683.html). My old 10" Atlas was a C-note at an estate sale. (with bench and tooling). ;D ;D ;D
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You sir, are a gentleman and a scholar.
I shall be looking for one of those soon enough. Not today though, wife's due date is tomorrow so kinda waiting on that before buying any more toys just yet.
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Well then, Congratulations. Toys and hobbies are definitely going on the back burner for a while.
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Congrats... I hope it wasn't another leaky seal issue...
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Congrats... I hope it wasn't another leaky seal issue...
LOL... Best post, all day!
I'm just glad I finished swallowing my coffee before I saw this. I love shooting the keys out of dead keyboards, but I prefer not killing them in the first place.
;D ;D ;D ;D ;D
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If you hit Craigslist for you area, you may find a larger lathe for about the same money as you'd spend on a Mini. Like this one (http://buffalo.craigslist.org/tls/4497514683.html). My old 10" Atlas was a C-note at an estate sale. (with bench and tooling). ;D ;D ;D
How I envy you. I keep looking, but one day............. the right one will show up!! I even considered an HF but NOT.
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John, on C-list just search "lathe" I just did for the SFbay area and there were two nice oldies for less than a grand each. The Sheldon is the better of the two. ;D One's in Petaluma.
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StevenG. to remove seals, orings etc. I use this: http://www.harborfreight.com/4-piece-pick-and-hook-set-66836.html (http://www.harborfreight.com/4-piece-pick-and-hook-set-66836.html) . Cheap and doesn't damage whatever you are working on, if you are careful. I find dental picks are a bit too sharp.
And congratulations on the soon to be addition.
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Congrats on the new addition...good thing is you'll be so tired you'll already have one eye closed when you sneak out to get a couple of shots in between feeding and pamper changings! Grand kids are great-just hand them them back to their parents and go- until they're old enough to teach how to shoot!