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Posted: Fri May 29, 2009 3:56 pm |
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| dalew59 |
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| Joined: 29 May 2009 |
| Posts: 7 |
| Location: Grass Valley, CA |
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| I was given a 1077 rifle the other day and have no idea when it was used last. I bought new CO2 cartridges and was excited to start plinking gophers in the yard. I put in a new cartridge, tightened the piercing cap and the entire cartridge discharged into the body of the rifle. Put in another cartridge and same thing. I got online and found this website and was wondering if anyone might be able to help me with this problem. The diassembly instructions and pictures are excellent and I have taken the gun apart, but I don't know what I'm looking for as far as the problem. Thanks in advance! |
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Posted: Fri May 29, 2009 4:20 pm |
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| Rogerflat |
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The seal was probably damaged. I'm not an expert on those or how to repair/replace them. But others here are.
Btw, was it a 12g or 88g co2 cannister? |
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_________________ I done been assisted by the trees and rivers. Never needed any minister to figure my divinity. |
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Posted: Fri May 29, 2009 4:25 pm |
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| AirGunEric |
| Site Admin |

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| Joined: 20 Jan 2007 |
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| Location: "Out There" |
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Look at the seals and piercing pin area of the rifle- where the Co2 cartridge connects and at the ends of the copper gas tube between it and the valve.
Could you determine what area (by valve or by Co2 caplet) where the leak was coming from? |
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Posted: Fri May 29, 2009 4:37 pm |
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| dalew59 |
| New Member |

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| Joined: 29 May 2009 |
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| Location: Grass Valley, CA |
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| I'ts a 12g cartridge. I couldn't tell exactly where it was leaking, but the cartridge emptied almost immediately. Not being familiar with the part names or numbers yet, part of the assembly is still in the valve tube, how do I remove it? |
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Posted: Fri May 29, 2009 5:02 pm |
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| yourdaddyjoe |
| Supporting Member |

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| Joined: 26 May 2008 |
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| Location: Tatorville, USA |
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Remove the Stock by taking out the 3 screws on the under side.
There is a little oblong hole in the bottom of the gas tube which you can see the Co2 powerlet and the seal as they come together.
Carefully place a new powerlet in and tighten it down. Now you can see if the co2 is leaking at the seal.
If this is the case...
Order a new seal from crosman. Part #38-128
1-800-724-7486 Ask for Kim Yaddow
Eastern Standard Time...
Shipping will cost you more than the part.
Installation is a little tricky but if you are handy you can do it yourself.
There is a little keeper ring that you can un-screw with a curved pick through the access hole to remove the seal. The ring does not have to be tourqued down... it only keeps the seal from falling out....
Instalation is the reverse... be careful not to slip with you pick or you will have to get another seal... There cheep enough... so order a couple extras...
I have done it the hard way before and it is a poop load more work disasembling the gun...
Get er' done and go have some fun....
Joe |
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Posted: Fri May 29, 2009 5:21 pm |
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| dalew59 |
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| Location: Grass Valley, CA |
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Just tried Joe's approach and it doesn't seem to be leaking at the seal, it's discharging from the brass tube outlet. The brass tube doesn't seem like a real solid fit, but again, I don't know how the fit shold be. Any other suggestions? Thanks,
Dale |
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Posted: Fri May 29, 2009 7:23 pm |
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| sniper |
| Silver Status Member |

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| Joined: 28 Nov 2008 |
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| Location: Star, Idaho |
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| that sounds like the problem with mine. |
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_________________ I believe in gun control,
If there's a gun around I
want to be controlling it....... |
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Posted: Fri May 29, 2009 7:57 pm |
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| dalew59 |
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| Joined: 29 May 2009 |
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| Location: Grass Valley, CA |
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Posted: Fri May 29, 2009 8:01 pm |
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| ThatGuy |
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| Location: nor cal |
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Posted: Fri May 29, 2009 8:06 pm |
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| yourdaddyjoe |
| Supporting Member |

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| Joined: 26 May 2008 |
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| Location: Tatorville, USA |
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| dalew59 wrote: |
Just tried Joe's approach and it doesn't seem to be leaking at the seal, it's discharging from the brass tube outlet. The brass tube doesn't seem like a real solid fit, but again, I don't know how the fit shold be. Any other suggestions? Thanks,
Dale |
Hey Dale, Your a local. Bring it by tomorrow... I am just down the road from ya. just before Joeger... Email me yourdaddyjoe@hotmail.com |
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Posted: Fri May 29, 2009 8:10 pm |
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| yourdaddyjoe |
| Supporting Member |

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| Joined: 26 May 2008 |
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| Location: Tatorville, USA |
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| Dale, We are also shooting on Sunday... but you better be good... 100+ yards... |
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Posted: Fri May 29, 2009 8:13 pm |
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| sniper |
| Silver Status Member |

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| Joined: 28 Nov 2008 |
| Posts: 3752 |
| Location: Star, Idaho |
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i'm not invited joe?  |
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_________________ I believe in gun control,
If there's a gun around I
want to be controlling it....... |
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Posted: Fri May 29, 2009 8:19 pm |
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| yourdaddyjoe |
| Supporting Member |

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| Joined: 26 May 2008 |
| Posts: 4027 |
| Location: Tatorville, USA |
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| Sniper, You have been invited before... So when are you coming up? |
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Posted: Fri May 29, 2009 8:34 pm |
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| sniper |
| Silver Status Member |

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| Joined: 28 Nov 2008 |
| Posts: 3752 |
| Location: Star, Idaho |
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. 550 miles is to far for an afternoon shoot.  |
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_________________ I believe in gun control,
If there's a gun around I
want to be controlling it....... |
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Posted: Fri May 29, 2009 8:41 pm |
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| dalew59 |
| New Member |

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| Joined: 29 May 2009 |
| Posts: 7 |
| Location: Grass Valley, CA |
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Joe,
I'd like to come on Sunday, when and where? As far as 100+ yards, I need a rifle that is operational first! If I bring it down, would someone mind taking a look at it for me? I have plenty of ammo and cartridges.
Thanks, Dale |
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