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PostPosted: Wed Jan 18, 2017 12:36 pm 
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Hi Guys
I have a 1322 and just added an 18" barrel and steel breech. When I shoot, there is a small puff of air from where the transfer port is. I am wondering if it's my fault (i.e. not tightened the bloody little breech screw enough) or I need more sealing at the barrel end of the port. Much appreciate all advice.


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PostPosted: Wed Jan 18, 2017 1:13 pm 
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Are both top and bottom seals in place? Of the breech is touching the tube....it's tight.

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PostPosted: Wed Jan 18, 2017 1:16 pm 
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You try tightening it more?

DigitalFx33 wrote:
Are both top and bottom seals in place? Of the breech is touching the tube....it's tight.

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Factory they don't come with a top seal.


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PostPosted: Wed Jan 18, 2017 2:41 pm 
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Right, I don't remember having a top seal. I hope I checked properly for left-over parts after assembly.


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PostPosted: Wed Jan 18, 2017 7:16 pm 
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adimo wrote:
Right, I don't remember having a top seal. I hope I checked properly for left-over parts after assembly.


For some reason......Crosman never put a top seal in the 1377/1322.....I found a seal at home depot and had to shave it a little to fit but its worth the time......you're losing about 30 fps without it..

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PostPosted: Wed Jan 18, 2017 10:29 pm 
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The TP is sensitive to orientation. The shorter shoulder fits into the valve, and the longer into the barrel. Upside down they will often leak.
Go easy on cranking that 4-48 screw. . . .

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PostPosted: Wed Jan 18, 2017 11:47 pm 
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Thanks for the replies. I think I‘ll try to use some plumber's tape on top of the port. It's just that I really hate the thought of fiddling with the tiny screw again. I'll end up buying a spare just for peace of mind.


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PostPosted: Thu Jan 19, 2017 10:54 am 
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Plumbers tape WILL make a good seal....but only for a few dozen shots....if that.You will find the air pressure is too great and it shreds the tape into threads and you'll be tearing it down AGAIN.Those Breech screws can only take so much abuse till the head strips out......most of us have been there.... :D

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PostPosted: Wed Feb 15, 2017 6:39 pm 
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Clamp the breech and compression tube in a vise, before tightening the small screw.


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PostPosted: Thu Feb 16, 2017 5:37 am 
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Vagrant steered you in the right direction.
Bottom of the port has the "short" bevelled edge.
They will pass a lot of air when installed upside down...

-D.S.

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