X-Mozilla-Keys:                                                                                 
Ed Anderson wrote:

Marc Pedings wrote:

. Either Haynes is wrong or the factory had
a problem> The Hayes Rotary Engineering teflon coated O-rings solve the

problem

by having the teflon coating all around the O-ring.

Our man Ed Anderson now has them in his 13B powered RV6.

Paul Lamar

Yes, and the Hayes "O" rings do eliminate the orientation question of the
coolant 'O' rings.  The Hayes rings are round, and as Paul mentioned,
surrounded by a Teflon sheathing.  They are considerably stiffer than the
stock Mazda 'O' rings which resemble large rubber bands in texture and
stiffness.  The Hayes Rings do want to stay in a circular shape so Hylomar
or some similar sticky gasket material is needed to keep them in the "O"
ring groove when you reassemble the engine.  Thus far the Hayes "O" rings
are doing the job and would appear to offer a better seal and longer life.
Hayes even states they expect them to be reusable  which is good as they run
around $25 apiece.

Ed Anderson
RV-6A N494BW 50 hours
13B Rotary Powered

 
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