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George,
The 11.230 o-rings ought to fit, provided that this dimension represents
the ID and not CL.
Mark S.
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of George Lendich
Sent: Wednesday, July 20, 2005 5:51 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: TES "O" Rings
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
>
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>
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