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 Post subject: 2240 valve leak
PostPosted: Mon Apr 08, 2013 6:13 pm 
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Joined: Thu Mar 15, 2012 6:38 pm
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Location: Near London Ontario
Hi Folks,

Been having issues with one of my 2240 valves, and I think I hit the nail on the head. Only, I don't know what to do about it. I was thinking the valve seal was the culprit, but now I'm thinking it's the seal on the back of the stem. It looks pretty chewed. Where do I get a replacement for this, or, do I have to get a new stem?

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what your looking at is back side of the valve stem, straight down it, from the back, or opposite the piercing stem. It looks all smushed and ratty.

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 Post subject: Re: 2240 valve leak
PostPosted: Mon Apr 08, 2013 6:30 pm 
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hey chewy read this thread not a 2240 but sound like the same problem you have hope it helps.

http://www.network54.com/Forum/275684/t ... -+or+not+-

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 Post subject: 2240 valve leak
PostPosted: Mon Apr 08, 2013 7:04 pm 
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Location: Near London Ontario
Yup same problem. Read to try and shave it with an exacto while its spinning slowly in a drill.

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 Post subject: Re: 2240 valve leak
PostPosted: Mon Apr 08, 2013 7:10 pm 
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Location: toronto
something like this happened to me, i ended buying a new pin and valve(half of the valve only), the valve damaged the pin's seal so i had to replace both, check you valve where the pin seats just to make sure the valve isnt damaged too

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 Post subject: Re: 2240 valve leak
PostPosted: Mon Apr 08, 2013 7:13 pm 
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Is that the 2240 that uses the Hipac? Just get a Disco valvestem seal from Eric and be done with it. No more trouble.


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 Post subject: 2240 valve leak
PostPosted: Mon Apr 08, 2013 7:21 pm 
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Location: Near London Ontario
Disco. Eric. Got it. Thanks!

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 Post subject: Re: 2240 valve leak
PostPosted: Tue Apr 09, 2013 11:57 am 
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magnumair wrote:
Is that the 2240 that uses the Hipac? Just get a Disco valvestem seal from Eric and be done with it. No more trouble.


Ah, is the standard stem too soft for the higher pressures?


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 Post subject: Re: 2240 valve leak
PostPosted: Tue Apr 09, 2013 1:09 pm 
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Location: Canada
EverHopeful wrote:
Ah, is the standard stem too soft for the higher pressures?


Yes.


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 Post subject: Re: 2240 valve leak
PostPosted: Tue Apr 09, 2013 7:37 pm 
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Gippeto wrote:
EverHopeful wrote:
Ah, is the standard stem too soft for the higher pressures?


Yes.

So what do we do about it?

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 Post subject: Re: 2240 valve leak
PostPosted: Tue Apr 09, 2013 7:52 pm 
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Hi Chewy,

That would be why the recommendation to use the seal from a disco - which is designed for 2000 psi if I remember correctly. Probably made of a harder material. I had a similar problem with the o-rings on the valve of my p17. I chewed up 6 or 7 until I got some dura 90 rings which are harder than the cheap o-rings I got from princess auto. The damage to the o-rings looked a bit like the damage on your valve stem.


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 Post subject: Re: 2240 valve leak
PostPosted: Tue Apr 09, 2013 8:02 pm 
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Location: Canada
Chewy wrote:
So what do we do about it?


If you need the piercing stem...you keep replacing them with stock parts.

Otherwise, you buy a disco stem, or find someone who can make you a Delrin stem. Delrin survives 3000psi without issue.

FYI....could have some grief getting delrin to seal initially if your valve body isn't perfect. A simple sanding tool along with some peel 'n stick sandpaper makes short work of fixing the seat. :wink:

Al


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 Post subject: Re: 2240 valve leak
PostPosted: Tue Apr 09, 2013 8:10 pm 
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talking with Eric about the disco stems. If they fit I'm in like a flea at the pound.

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