Perry Casson wrote:

Here's what Ed Anderson reported a few weeks back:

 Looks like the second try on the Teflon coated silicon "O" rings from
McMaster was successful.

Their part number is 9319K239.  The Teflon-Encapsulated
Silicone O-ring is
AS568A Dash No. 175 for $9.94 each.  I received the one I ordered and
compared it to the Hayes and I can not tell any difference.
The Dia is 9"
and the thickness is 3/32" and it lays in the groove just
like the Hayes
ones meaning you have to work it a bit to get it to stay in
the groove and a
little Hylomar to make it stick there.

So this is a price savings of $15.06 per ring or a $60.24
savings for a set
of four over the Hayes O rings.  I have used the Hayes in two
rebuilds and
find them much more substantial that the Mazda Stock inner
coolant "O" ring.
In fact, when I took apart my 86 the "O" rings looked like
they could be
reused with no problem as Hayes has claimed the rotary racing
crowds does.

Their Web site is:

http://www.mcmaster.com/  search for O-rings and select
"Teflon-Encapsulated" and enter their part number.

Ed

If you assume the slot is two half circles with straight
sections you can calculate
the length and call McMaster Carr with the slot dimensions.
It is not a catalog item
anyway so in any event you will have to call. Do you have the
Creavey catalog?
http://www.creavey.com
The ring section diameter should be about 20% greater than
the slot depth.

Paul Lamar

I misspelled Creavey.  Creavey is the proper spelling.

Paul Lamar
 
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