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 Post subject: Re: Hipac Won't hold air
PostPosted: Tue Apr 30, 2013 8:25 am 
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Joined: Tue Jun 03, 2008 5:46 pm
Posts: 2814
Location: Canada
Rick, no reason nylon won't work...very common as a sealing material in regulators.

Bonded washer still holding. :)

Al


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 Post subject: Hipac Won't hold air
PostPosted: Tue Apr 30, 2013 1:34 pm 
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Joined: Thu Mar 15, 2012 6:38 pm
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Location: Near London Ontario
Love where this going. Feel free to send me samples to test :D

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 Post subject: Re: Hipac Won't hold air
PostPosted: Tue Apr 30, 2013 1:42 pm 
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Joined: Thu Apr 01, 2010 2:28 pm
Posts: 317
Chewy, if you like, send me your address and I'll send you over a black hipac seal to keep you shooting, while you figure out a longer term solution.


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 Post subject: Re: Hipac Won't hold air
PostPosted: Tue Apr 30, 2013 8:27 pm 
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Joined: Thu Mar 20, 2008 2:29 am
Posts: 16
Location: BC
I never had a problem with mine leaking until I ordered up some new face seals some months after buying my first Hipac. Couldn't get over 1800-2000 psi without air leaking past the face seal. What I ended up doing was putting a drop of cyanoacrylate (crazy glue) under the black seal, quickly installing the seal and screwing in the Hipac. Left it alone for 10 minutes or so and then filled it. It hasn't leaked since, and that's filling up to 2900 psi. I have 3 Hipac guns, and one of them had been sitting on a shelf for at least 3 months. I hooked it up to my Benji pump and it still had over 2k pressure in it.


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 Post subject: Hipac Won't hold air
PostPosted: Tue Apr 30, 2013 8:57 pm 
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Location: Near London Ontario
Crazy!! Good idea though, seals it on the bottom. Anyone have any bad thoughts about doing that?

I got one more trick to try V30 and then you may here from me - thanks for the kind offer!

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 Post subject: Re: Hipac Won't hold air
PostPosted: Wed May 01, 2013 4:15 am 
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Joined: Sun Jul 15, 2012 10:49 am
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Location: Victoria, BC and Clarkston, WA
Making washers tonight Chewy! I'll send you a couple thicknesses. I'll include the other item also in the shipment! Just having it welded up.

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-Rick
Pardini K10
Brocock Concept .22
3 Custom Crosman 2260
Benjamin Discovery .22 w/Joe Hickey stock!
Crosman 150 pistol .22
4 Crosman MK 1 pistol .22
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 Post subject: Re: Hipac Won't hold air
PostPosted: Wed May 01, 2013 10:40 am 
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Joined: Fri Aug 06, 2010 3:58 pm
Posts: 45
Location: Jefferson, Oregon
This is a little late in the process, but since you put a disco stem in the valve, are you sure that's not where it's leaking? If air is coming out the barrel, it is common to have to seat the disco stem with a drill and some toothpaste or light abrasive. Just a thought. Regards, Tom

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tkerrigan Jefferson, Oregon


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 Post subject: Re: Hipac Won't hold air
PostPosted: Wed May 01, 2013 11:06 am 
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Location: Coalmont BC
You usually don't even need toothpaste.... I just chuck the stem in a protable drill and spin it 2 sec. in each direction while pulling gently on the stem, repeating twice.... 99% of the time they seal right up.... If you inspect the seat in the valve and on the poppet with a magnifier and see a nice bright, continuous ring on both, you should be OK.... I agree that without doing that, Disco stems leak ~50% of the time....

Bob

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Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
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Too many! Springers, Pumpers, CO2, but I love my PCPs and developing them!
Proud Member of the 2000+fps Club!


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 Post subject: Hipac Won't hold air
PostPosted: Wed May 01, 2013 7:09 pm 
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Joined: Thu Mar 15, 2012 6:38 pm
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Location: Near London Ontario
Damn maybe my valve seal was ok. I will check the stem out this weekend im outta gun time - thank god for work i can hit the forum!!

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 Post subject: Hipac Won't hold air
PostPosted: Wed May 01, 2013 7:11 pm 
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Location: Near London Ontario
Thanks Rick!! Cant wait!

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 Post subject: Re: Hipac Won't hold air
PostPosted: Wed May 01, 2013 8:12 pm 
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Location: Victoria, BC and Clarkston, WA
Whitewolf wrote:
0.371 x 0.070 x hole size. :D :D :D

About ready to make some, but don't know the hole size???

Thanks Anyone! :D

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-Rick
Pardini K10
Brocock Concept .22
3 Custom Crosman 2260
Benjamin Discovery .22 w/Joe Hickey stock!
Crosman 150 pistol .22
4 Crosman MK 1 pistol .22
Mrodair CP-1M .22 and .177


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 Post subject: Re: Hipac Won't hold air
PostPosted: Wed May 01, 2013 9:07 pm 
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Location: Coalmont BC
1/8" will work.... not critical....

Bob

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Dominion Marksman Silver Shield - 5890 x 6000 in 1976, and downhill ever since!
Airsonal;
Too many! Springers, Pumpers, CO2, but I love my PCPs and developing them!
Proud Member of the 2000+fps Club!


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 Post subject: Re: Hipac Won't hold air
PostPosted: Wed May 01, 2013 9:19 pm 
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Joined: Tue Jun 03, 2008 5:46 pm
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Location: Canada
Piercing stem measures .123".


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 Post subject: Re: Hipac Won't hold air
PostPosted: Wed May 01, 2013 9:25 pm 
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Joined: Sun Jul 15, 2012 10:49 am
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Location: Victoria, BC and Clarkston, WA
Thanks you two! :D

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-Rick
Pardini K10
Brocock Concept .22
3 Custom Crosman 2260
Benjamin Discovery .22 w/Joe Hickey stock!
Crosman 150 pistol .22
4 Crosman MK 1 pistol .22
Mrodair CP-1M .22 and .177


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 Post subject: Hipac Won't hold air
PostPosted: Thu May 02, 2013 8:03 am 
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Joined: Thu Mar 15, 2012 6:38 pm
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Location: Near London Ontario
Try smooth out the disco stem and try again with some soft plastic of some kind. It could very well be the stem.

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