<VV> Viton O rings

J. R. Read hmlinc at sbcglobal.net
Tue Jun 30 12:50:03 EDT 2015


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. 

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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