<VV> viton pump cups

[J R Read]

Hi Seth,

Yes, IIRC there was a source - not sure if it was "The Source" (AKA David 
H.) that had viton pump cups available.  Someone will likely let us know on 
that point.

Further, and again IIRC, it seems to me that there were some questions about 
using viton in this application.  They went along the lines of - potential 
greater wear on metal components of the carb....  viton resists heat better 
than neoprene (or whatever they are made of today - the black ones), but is 
heat the problem in this application......   is viton more or less resistant 
to modern gas than the current black stuff.....

I do not know the answers to any of the things above and I do not know what 
(black VS brownish) substance goes into modern pump cups.  I'm hoping for 
something (like modern 'rubber' fuel line) which is at least resistant to 
the alcohol in the gas, but I simply do not know the answers here.  I'm also 
hoping for a material that does not wear out the carbs rapidly.

Perhaps someone else on VV has looked into this more deeply than I and can 
provide some appropriate suggestions.

Perhaps you would like to participate in a genetic experiment since you 
already know the effect of alcohol on your body?
>GGGG>

Later, JR

CCE CORSA CORVANANTICS SCG member
'61 Rampside Standard 4/110
'65 Monza Convertible 4/140
"Keep the Love Alive"

----- Original Message ----- 
From: <Sethracer at aol.com>
To: <hmlinc at sbcglobal.net>; <dpleau at wavecable.com>; 
<virtualvairs at corvair.org>
Sent: Tuesday, August 30, 2011 11:03 PM
Subject: Re: <VV> FW: corvair carburetors - pump cups


> Wasn't there (pardon me) a "Source", that supplied Viton cups for the
> accelerator pumps. Are these still available? Would Viton be better 
> resistant to
> the Ethanol in the gas? I'm no chemist, but ethanol works the same way on
> me!
>
> - Seth
>