 |  | | | |  | |  |  | Piston seal question. |  | |  |  | |
 Posted: Tue Mar 31, 2009 1:24 pm |
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| TerrySpringer |
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| Joined: 06 Jul 2008 |
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Hello guys,
so i bought a new pistonseal for my quest 1000,
it's a gamo tesla seal made by maccari.
since i got a new chrony i'm kinda tinkering with
it a bit to see if i can get any more juice out of
this gun. you guys must know what i mean  .
after i finally got the darn thing on the piston i
noticed that the seal was not flush with the "button"
on the piston, like my factory seal was. they are
the same diameter though.
is this a bad thing? i'm a noob at tuning these rifles
so i thought i'd post it on the forum before i
really screw it up.
also i got some piston buttons too. i'm curious to see
how the gun will fire after i install everything and lube'r up  . |
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| Posted: Tue Mar 31, 2009 2:40 pm |
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| broommaster2000 |
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| Joined: 10 Mar 2007 |
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| Location: City of Groningen, Groningen, The Netherlands |
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Welcome aboard Terry!
Aftermarket piston seals are often a bit oversized because they have to go with several different rifles.  I think you'll have to size it down a bit.
How? I think other members will help you with that. |
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| Posted: Tue Mar 31, 2009 3:21 pm |
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| Slavia |
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_________________
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| Posted: Tue Mar 31, 2009 4:53 pm |
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| TerrySpringer |
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ok i got a pic..
i also noticed some rough spots on the piston in need of a polish.
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| Posted: Tue Mar 31, 2009 8:14 pm |
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| kanyon |
| Silver Status Member |
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| Joined: 09 Aug 2008 |
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| Location: New Zealand |
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Thats all good most of my guns have the seal potruding passed the button
1 or 2 mill.....
May be a bit quiter if you are unlucky enough to
dry fire it.     |
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| Posted: Wed Apr 01, 2009 4:44 am |
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| Alstone |
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It's supposed to be like that otherwise the piston button would slam in to the compression chamber end on each shot, by sitting proud the seal act's like a shock absorber.
Al |
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| Posted: Wed Apr 01, 2009 9:31 am |
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| Slavia |
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| Quote: |
| by sitting proud the seal act's like a shock absorber |
But do avoid very light pellets and never dry-fire - cushioning is good; mashing is bad.
I suppose if there were metal-to-metal contact between the piston and the cylinder head you could eventually hammer the transfer port closed. |
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| | | | | | | | | Piston seal question. | | | | | |
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