HELP with 1377

[Trophyhunter49]

I have been workin on my sons 1377. When you shoot it you can feel air that come from under the breech. I put in a new breech seal and a new bolt seal and still feel air!! Any ideas!!!

[Crosshairs]

Make sure your barrel and valve is lined up with the breech seal also did you put the breech screw back in and is it tight. sometimes the barrel will twist and not line up right.
                 Mike

[breakfastchef]

Mike is right. Check that the transfer tube is fitting into the barrel port. I ususally center the barrel port on the breech and lightly snug the barrel set screw. Just as I marry the breech to the pump tube, I will loosenn the set screw so I can wiggle the assembly together. Also, remember that the shorter part of the transfer tube fits into the valve exhaust port.

[Trophyhunter49]

I have done all of that. I do'nt know what else to do. That's why I am beging 4 help.

[1377x]

which variant is it?

[breakfastchef]

Does the valve build pressure and hold air?

[Trophyhunter49]

It builds persure and holds air. iT JUST BLOWS AIR WHEN YOU SHOOT IT? I THINK IT IS MAYBE A PHASE 3 

[cmj21973]

What's the first four digits of serieal number?

Find an adjustable flame; disposable lighter. Unscrew the adjustable flame valve and remove the o-ring. Use this o-ring as a top seal on the transfer sleeve.

http://www.crosman-air-pistol-owners-forum.com/board/index.php/topic,721.msg57372.html#msg57372

It's the o-ring on the left.

[Tater]

Thanks CMJ, that's a great thread.

[Trophyhunter49]

Thanks  , I will try that today

[Trophyhunter49]

CMJ, Thanks for the info. It worked like a charm    No more air leaking when it shoots Thanks again for all the help

[Trophyhunter49]

  This is the greatest airgun site in the world The people on the site are the GREATEST   Everyone as been so helpful, and want to say Thanks   

[Tater]

This is the greatest airgun site in the world The people on the site are the GREATEST   Everyone as been so helpful, and want to say Thanks 

Well said, I agree.   

[Crosshairs]

This is the greatest airgun site in the world The people on the site are the GREATEST   Everyone as been so helpful, and want to say Thanks   

x1

[crossliner]

What's the first four digits of serieal number?

Find an adjustable flame; disposable lighter. Unscrew the adjustable flame valve and remove the o-ring. Use this o-ring as a top seal on the transfer sleeve.

http://www.crosman-air-pistol-owners-forum.com/board/index.php/topic,721.msg57372.html#msg57372

It's the o-ring on the left.

Imitated it myself and it does work