<VV> Viton O rings

[jvhroberts at aol.com]

For Viton, the shelf life is essentially indefinite. 

Cost was a bigger thing at GM in those days. They were scrimping fractions of a penny, regardless the long term outcome. Shame...

 

 

John Roberts
 

 

-----Original Message-----
From: J. R. Read via VirtualVairs <virtualvairs at corvair.org>
To: Corvair Underground <sales at corvairunderground.com>; virtualvairs <virtualvairs at corvair.org>
Sent: Tue, Jun 30, 2015 12:50 pm
Subject: Re: <VV> Viton O rings


Lon,

I probably have 2 or more sets of the Safari O rings on the shelf.  Any
idea 
just what the shelf life might be of those babies?

You probably should
not have told me that I actually paid you $100 for them. 
<BIG GRIN>

Later,
JR

----- Original Message ----- 
From: "Corvair Underground via
VirtualVairs" <virtualvairs at corvair.org>
To: <virtualvairs at corvair.org>
Sent:
Tuesday, June 30, 2015 11:34 AM
Subject: <VV> Viton O rings


>     I can't
definitively say when Viton O rings were used in Corvairs. But 
> we know that
they re mentioned as a good idea in Bill Fisher's How To 
> Hotrod Corvair
Engines circa 1969.  The biggest obstacle was the cost.
>
>     Of the over
7000 different new parts we've sold a set of 36 Viton O 
> rings is noted
because in 1974 we sold them for $8.95 a set- Now we still 
> sell them for
$8.95 a set. If you take into account actual (as opposed to 
> government
"official") inflation that means in 1974 Corvair people were 
> paying about
$100.00 a set in 2015 money.
>
>     Older members will remember Safari
Enterprises out of Washington state 
> who sold Viton O rings and supplied
nearly all of us back in the 70's.
>
>     I can remember having a lot of
trouble talking Corvair people into 
> buying them back then.  Bill Hubbel
mentions that the Lambrecht car still 
> has neoprene O rings in it, which is
entirely possible. They're probably 
> just waiting for the first high heat
cycle and - crrrrrrrack - they'll 
> start spewing oil everywhere.    Viton
only has about 30-50 degrees higher 
> failure rate than neoprene. What Viton
has is the ability to not harden 
> with age.
>
>    And just for the fun of
it - all materials have their preferred uses - 
> so please stay away from
Viton seals like crank seals etc. The well 
> documented failure rate is right
up there.  But for O rings they are 
> unsurpassed in reliability.
>
> Lon
Wall
> www.corvairunderground.com
>
>
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