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What size Orings for pump top

post #1 of 12
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I have this pump top for my swiftech D655 pump.

http://www.frozencpu.com/products/14197/ex-res-306/FrozenQ_Acetal_D5_MCP655_Pump_Mount_Bracket_-_Liquid_Fusion_Dual_Bay_Reservoir_.html

I went to actually install it tonight and found that I have no O-rings shipped with the unit. I really don't feel like sending emails and trying to get new orings shipped (taking the o-ring out of original pump top and trying to apply it to this unit failed miserably and is responsible for a nice steady leak). Does anyone know the correct size oring I need so I can go to home depot tomorrow and get this fixed without having to deal with emailing and shipping and hopefully having a useable computer by the weekend?

I mainly need to know what size for the bigger O-ring, but both sizes would be welcome if someone knows.
    
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post #2 of 12
I know it's not what you want to hear, but you would be best sending both FrozenCPU and FrozenQ emails and hope for a response on Friday. If you get an answer from them, drive to the nearest hardware store.
 
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post #3 of 12
may sound obvious, but take to pump top with you to home depot and try the different sizes until you find one that fits.

the o-ring should drop in without stretching. it will compress/flatten a bit when you asemble the top to the pump
    
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post #4 of 12
yes I understand you're using Laing 655 --- o-rings are specified using I.D. & cross section diameter --- + "hardness", you need A70 shore / durometer AND material, you need NBR / Buna N - common plumbing fixture compound

as I don't use Laing 655 pump(s), I don't know size, but I would take pump to automotive supply near you - they usually have large assortment of standard o-rings - make sure A70 "hardness" NOT A90 and bring original o-ring with you.

buy molded one-piece not glued together o-ring,

good luck
post #5 of 12
this is the original Laing tech brochure:

http://www.laing.cz/info/industrial/Laing_Industrial_pumps_english.pdf you will need pdf reader

I found o-ring size listed as 57 x 3.5 in epdm rubber compound (also suitable compound material)

cheers

I'm afraid that while I can google and view this pdf doc, the above link will not take you there - google the above address for pdf doc
Edited by buildtoexcess - 4/27/12 at 7:33am
post #6 of 12
Quote:
Originally Posted by buildtoexcess View Post

o-ring size listed as 57 x 3.5 in epdm rubber compound (also suitable compound material)

57mm = 2-1/4 inches. wink.gif

Also, I've seen FrozenCPU carry the Laing DDC o-rings on their site. So, it's not a lose to find more.
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post #7 of 12
PS, .....


To bad NO ONE carries replacement Laing DDC or D5 impellers. This would save so many people from having to buy a new pump if the impeller ran dry or seized up.
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post #8 of 12
Thread Starter 
I have sent emails out over the weekend and still waiting on responses. I can't find on frozen CPU a link to the orings. I plan on going to autozone tonight to trh to find one that will work. Will update if anything does.
    
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post #9 of 12
 
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post #10 of 12
Idk what happened but when i got a new top for my 655 i reused the old o-ring. Are you sure you are puting it on correctly?
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