Author Topic: Custom air seals  (Read 523 times)

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Offline airgunnut

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Custom air seals
« on: December 23, 2016, 09:46:55 PM »
Has anybody had an air seal from custom air seals of Australia?
https://www.customairseals.com/
Apparently they make the best seals for hw 45's
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Offline Baggawind

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Re: Custom air seals
« Reply #1 on: December 24, 2016, 10:11:57 AM »
Yes, in fact i,ve got one on order for a 99s. I fitted one to my SMK208 and it performs very well , giving very good consistency. My mate in Scotland, the airgun guru, uses them a lot and says the Aussie is a really good guy to deal with.

Offline airgunnut

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Re: Custom air seals
« Reply #2 on: December 24, 2016, 11:31:33 AM »
Intresting to read that the seal is impregnated with moly
"Men occasionally stumble on the truth, but most of them pick themselves up and hurry off as if nothing had happened"
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Offline Baggawind

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Re: Custom air seals
« Reply #3 on: January 04, 2017, 08:07:25 PM »
Yesterday I fitted one to my old 99s, the one I chopped in for the SMK , and it works extremely well , 4fps spread . That rifle, after re-making all new internals and spring, is a delight to shoot. Wish I still had it now  :'(

Offline seagate

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Re: Custom air seals
« Reply #4 on: January 04, 2017, 11:15:34 PM »
if I remember correctly did you have some ups and downs with it, did you ever get to the bottom of it's quirkiness?
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Offline Baggawind

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Re: Custom air seals
« Reply #5 on: January 05, 2017, 10:14:20 AM »
The problem was the poor machining of the breech plug and also a bad case of barrel droop. The piston seal was also too loose, a common fault with Weihrauchs these days. Hull Cartridge replaced the cylinder and piston. But the I was still unhappy with the poor machining on that one too. And the replacement seals they were also loose. This is why the Aussie seal is so good , it does the job perfectly. No sizing needed either. But, I have to say, that rifle is now so good I wish I had stuck with it.  :-[

Offline seagate

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Re: Custom air seals
« Reply #6 on: January 05, 2017, 11:38:24 AM »
Sods law ::) :D
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Offline landymick

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Re: Custom air seals
« Reply #7 on: January 05, 2017, 04:14:31 PM »
Well you will have to get another to prove it.

Incidentally my 2013 99s is still going strong & so far it has not had any of the problems that have bounced around the forums over the last couple of years but my earlier .22 99s 2010 I think developed a noise in 2013  :o I still haven't got round to investigating yet as I,ve Been using the Walther & my Lazaglided MK1 80.

Offline Baggawind

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Re: Custom air seals
« Reply #8 on: January 06, 2017, 11:01:23 AM »
Most of the problems seem to be centred around the cocking arm, i.e. galling of the cylinder. That,s why, on the latest models, the arm is fitted with a Delrin slider. But that hasn,t cured the fault. The foot of the arm needs radiusing and polishing. On my (old ) rifle I added a small Delrin plug, inserted into the front stock screw bracket so that , with the screw in place , the plug bears down slightly onto the arm, keeping it parallel to the cylinder , preventing it from " digging in " anywhere. Well, that,s the theory and it seems to work, so far.  :)

Offline seagate

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Re: Custom air seals
« Reply #9 on: January 06, 2017, 02:23:04 PM »
I had a 22 99s maybe around 10 years ago ,it had a long skinny barrel, beautifully balanced it was. I never had any issues with it. :)
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