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Melling Oil Pump O-ring question

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Old Apr 5, 2011 | 03:09 PM
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Default Melling Oil Pump O-ring question
I have a Melling High Flow Oil pump I am installing on my 2003 Z06. The pump cam with 2 different o-rings, a black and green one. I also have a brand new blue stock o-ring. Would I be ok to use the stock blue o-ring?
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Old Apr 5, 2011 | 03:18 PM
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Originally Posted by Back
I have a Melling High Flow Oil pump I am installing on my 2003 Z06. The pump cam with 2 different o-rings, a black and green one. I also have a brand new blue stock o-ring. Would I be ok to use the stock blue o-ring?
Found this using the search function...........

http://forums.corvetteforum.com/c5-t...pump-help.html
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Old Apr 5, 2011 | 03:20 PM
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LMAO.. I just tried to post the EXACT SAME link. Something happened to it and it never posted. Must of had a busy signal!
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Old Apr 5, 2011 | 03:42 PM
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Do you guys know if there's any issues with using the stock blue one?
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Old Apr 5, 2011 | 03:47 PM
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Originally Posted by Bill Curlee
LMAO.. I just tried to post the EXACT SAME link. Something happened to it and it never posted. Must of had a busy signal!
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Old Apr 5, 2011 | 06:16 PM
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All I know is,, The one that you see in that picture is known NOT to seal very well. I know for a fact that the GREEN one worked very well.

Last edited by Bill Curlee; Apr 5, 2011 at 06:19 PM.
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Old Apr 5, 2011 | 06:22 PM
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Originally Posted by Bill Curlee
All I know is,, The one that you see in that picture is known NOT to seal very well. I know for a fact that the GREEN one worked very well.
Is that because the green ring is a different cross sectional thickness compared to the black or blue rings, or due to a difference in material (ie, silicone vs. buna-n vs. viton)?
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Old Apr 5, 2011 | 07:10 PM
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Originally Posted by leadfoot4
Is that because the green ring is a different cross sectional thickness compared to the black or blue rings, or due to a difference in material (ie, silicone vs. buna-n vs. viton)?
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Old Apr 5, 2011 | 07:12 PM
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Its a thicker round O ring, Cant confirn the material difference.

BC
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Old Apr 5, 2011 | 09:12 PM
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Originally Posted by Back
Do you guys know if there's any issues with using the stock blue one?
I am 95% sure that I used a blue GM ring when I did my H/C/I with Melling pump and I have great oil pressure.....if that helps at all!
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Old Apr 5, 2011 | 10:21 PM
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Originally Posted by vsocks1
I am 95% sure that I used a blue GM ring when I did my H/C/I with Melling pump and I have great oil pressure.....if that helps at all!
Definetly, I was hoping someone who used the blue o-ring would chime in. From everything I searched it looks like it should be fine. Thanks though!
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