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PostPosted: Fri Apr 01, 2016 1:55 pm 
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Joined: Fri Aug 20, 2010 4:30 pm
Posts: 403
Location: SW, Ont
My friend picked one up to shoot rodents and keep in his back shed, cheap gun so he doesn't really care if about it (rust etc.). He actually swapped out the spring and is getting into the 600fps range
now. One thing he wants to know is what can he use to replace the original leather breech seal. (o-ring, size etc) Quite a bit of air leaks out when doing the Kleenex test.
He knows he can take it and measure but usually taking out a leather breech seal means destroying it making the gun useless.


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PostPosted: Sun Apr 03, 2016 2:06 am 
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Joined: Wed Oct 17, 2007 3:27 am
Posts: 2586
Location: Winnipeg, Canada
I was looking at one at Peavey Mart last night, and it appears to be a Chinese B-1.
That leather appearing seal isn't leather at all- it's a mix of wax, floor sweepings, sand, miscellaneous animal matter(Yak-fat?), and god only knows what else. It will not last long. The seal channel will clean out to a fair depth. I stacked some O-rings in my B-1 and (IIRC) a 13-XX TP seal. I adhered the whole mess together with some clear silicone caulking, and it still works, even after 4 years. The tolerances in that sleeve area are generous, to put it mildly...

The hinge pin/screw is in there incredibly tight. Access to a compressor and impact driver are highly recommended for that over-tightened screw. You may want to true up/clean the mating surfaces while you are at it- the angles on the grizzly marked sample I looked at were pretty scary.

Regards,

Doc Sharptail

_________________
"Ain't no half-way"
-S.R.V.


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PostPosted: Sun Apr 03, 2016 10:06 pm 
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Joined: Fri Aug 20, 2010 4:30 pm
Posts: 403
Location: SW, Ont
Thanks Doc, My friend is a big PB collector and shooter but also loves his airguns. He has a lot of nice older airguns, HW, BSA, Diana's etc, but likes anything that shoots. I laughted when he bought this gun but he likes to tinker.


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