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From: "George Lendich" <lendich@optusnet.com.au>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-220141@logan.com>
Subject: Re: [FlyRotary] Re: TES "O" Rings
Date: Thu, 21 Jul 2005 08:50:53 +1000
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Mark,
Yes I remember that, God knows what sizes he was using!
BTW I will probably keep the 11.230, now that I have them.
George 

> George,
> If I recall, PL had to weight them down with a board overnight to
> "stretch" the o-rings a bit to get them to sit down in the grooves.  Not
> sure if this was intentional or not.  Mine laid down in the grooves as
> pretty as you please.
> 
> Mark S.
> 
> -----Original Message-----
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
> Behalf Of George Lendich
> Sent: Tuesday, July 19, 2005 6:27 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: TES "O" Rings
> 
> Gary/Kelly,
> Your figures seem more accurate given mine are too big.
> 
> The Oil rings are the same size I have now recorded.
> 
> The Inner coolant ring of 8.932 ID is indeed smaller than the 9.111 ID.
> The Outer 11.182 is also smaller than my recorded 11.230 ID ( which is
> down
> from Paul's original figure of 11.340") - I figure that yours must be
> right.
> 
> Gary, are your "O" rings red in the middle with a clear outer covering!?
> It's just that it looks different to what I've seen in photo's.
> Do Creavy take back and exchange?
> George (down under)
> 
> > Hi Kelly;
> >
> > I believe Paul's numbers worked out to be:
> >
> > Oil O-rings
> > 0.093 x 4.68
> > 0.118 x 4.33
> >
> > coolant O-rings
> > 0.093 x 8.932   (0.098 not available)
> > 0.093 x 11.182
> >
> >
> > I ordered the coolant orings with 9.00 and 11.25 ID, they fit without
> > stretching and had a bit of slack, I would get slightly smaller next
> > time.
> > I should also add these were for an '86 NA.  I assume they are all
> > supposed
> > to be the same but I have seen some casting differences between
> > housings.
> >
> > The 0.093 x 8.932 were originally listed as .098 but I was told by
> > Creavey
> > this size is not available.
> > These appear to be narrow in the wide groove but have an approximately
> > correct "nominal squeeze".
> > Biggest problem seems to be getting the oring to stay in the groove
> > with minimal hylomar during installation.
> >
> > I believe the ones you want are the SIL/PFA o-rings good to 500F.
> > Ask for them specifically.
> >
> > Haven't run the engine yet to give any real feedback.
> >
> > Cheers
> > Cary
> >
> > >>  Homepage:  http://www.flyrotary.com/
> > >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> >
> 
> 
> 
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> 
> >>  Homepage:  http://www.flyrotary.com/
> >>  Archive:   http://lancaironline.net/lists/flyrotary/List.html
> 
>