X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mailout1.pacific.net.au ([61.8.0.84] verified) by logan.com (CommuniGate Pro SMTP 4.3.6) with ESMTP id 613428 for flyrotary@lancaironline.net; Sun, 24 Jul 2005 10:12:09 -0400 Received-SPF: none receiver=logan.com; client-ip=61.8.0.84; envelope-from=leonp@pacific.net.au Received: from mailproxy2.pacific.net.au (mailproxy2.pacific.net.au [61.8.0.87]) by mailout1.pacific.net.au (8.13.4/8.13.4/Debian-3) with ESMTP id j6OEBNnj015437 for ; Mon, 25 Jul 2005 00:11:23 +1000 Received: from ar1 (ppp209C.dyn.pacific.net.au [61.8.32.156]) by mailproxy2.pacific.net.au (8.13.4/8.13.4/Debian-3) with SMTP id j6OEBJhB027674 for ; Mon, 25 Jul 2005 00:11:20 +1000 Message-ID: <002801c59059$480874d0$9c20083d@ar1> From: "Leon Promet" To: "Rotary motors in aircraft" References: Subject: Mazda Factory O rings vs TES O rings was Re: [FlyRotary] Re: TES "O" Rings Date: Mon, 25 Jul 2005 00:09:17 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0025_01C590AD.18E7BEF0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 This is a multi-part message in MIME format. ------=_NextPart_000_0025_01C590AD.18E7BEF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hey Guys, Enough already! I'm with Dave on this TES O ring business, but I'm = even MORE radical ... =20 If the factory O rings were good enough to win Le Mans 24 Hr, it would = seem that they SHOULD be good enough for our purposes. Moreover, they = seem to last 20 odd years and over 500,000 km in cars that are well = looked after and serviced regularly and the cooling systems kept clean. = The only time I've EVER seen Factory O rings fail (since the mid '70s) = is if the engine has been "cooked", (and then the rotor housings are = warped), or the rotor housings have corroded (due to lack of a regular = coolant changes), and in both these failure modes, the rotor housings = are throw-aways anyhow. Not the O ring's fault that the engine leaks = water - OIF (Operator Induced Failure). So seriously, can someone PLEASE tell me WHY you all want to use TES O = rings instead of the factory ones?? Apart from price, (which seems to = be an issue with some), and the fact that the big bearded guy at that = "other" place says you should - so why don't you guys just ask HIM for = the relevant part # - he knows EVERYTHING).=20 Still, for the life of me, I just can't see what technical advantages = there are (apart from busting the O ring grooves if you happen to get = the sizing wrong). I'm afraid that it has totally escaped me. Cheers, Leon ----- Original Message -----=20 From: david mccandless=20 To: Rotary motors in aircraft=20 Sent: Sunday, July 24, 2005 11:48 AM Subject: [FlyRotary] Re: TES "O" Rings I cannot stand this any longer, "For Crying out loud" Why not get an = OEM Mazda O ring, send it to Creavey and get Jeff to make one the = goddamn same size! It was good enough for LeMans for 24 hrs, it will be = good enough for us. FWIW, Dave McC On 24/07/2005, at 9:29 AM, George Lendich wrote: Kelly, Maybe at this present point in time, but who knows down the track. =20 BTW one size I omitted for the inner "O" ring was the .093" which = was approx 1 : .77 - good for that size recess, I thought by just = looking at it,it would be too small ( thin), which Bill identified as = being a uneducated response. I ment to tell you, but forgot. I am also now thinking that the .093 may be too large for the outer = - however it won't see the same heat, nor expand as much as the inner. Their results will be interesting. George ( down under) George, It may be that only you and I are interested in the correct = size of the coolent O-rings and/or the need for a TES outer = O-ring........Housing is boxed and ready to ship to "Creavey" Monday ! -- Kelly Troyer=20 Dyke Delta/13B/RD1C/EC2 ------=_NextPart_000_0025_01C590AD.18E7BEF0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hey Guys,
 
Enough already!  I'm with Dave on = this TES O=20 ring business,  but I'm even MORE radical ...    =
 
If the factory O rings were = good enough=20 to win Le Mans 24 Hr,  it would seem that they SHOULD be good = enough for=20 our purposes.  Moreover,  they seem to last 20 odd years and = over=20 500,000 km in cars that are well looked after and serviced regularly and = the=20 cooling systems kept clean. 
 
The only time I've EVER = seen Factory O=20 rings fail (since the mid '70s) is if the engine has been = "cooked", =20 (and then the rotor housings are warped),  or the rotor housings = have=20 corroded (due to lack of a regular coolant changes),  and in = both=20 these failure modes,  the rotor housings are throw-aways = anyhow.  Not=20 the O ring's fault that the engine leaks water - OIF (Operator = Induced=20 Failure).
 
So seriously,  can someone PLEASE = tell me WHY=20 you all want to use TES O rings instead of the factory ones?? Apart = from=20 price,  (which seems to be an issue with some),  and the fact = that the=20 big bearded guy at that "other" place says you should - so why = don't you=20 guys just ask HIM for the relevant part # - he knows EVERYTHING). =
 
Still, for the life of = me,  I just=20 can't see what technical advantages there are (apart from busting = the O=20 ring grooves if you happen to get the sizing wrong).  I'm afraid = that it=20 has totally escaped me.
 
Cheers,
 
Leon
----- Original Message -----
From:=20 david=20 mccandless
Sent: Sunday, July 24, 2005 = 11:48=20 AM
Subject: [FlyRotary] Re: TES = "O"=20 Rings

I cannot stand this any longer, "For Crying out loud" = Why not=20 get an OEM Mazda O ring, send it to Creavey and get Jeff to make one = the=20 goddamn same size! It was good enough for LeMans for 24 hrs, it will = be good=20 enough for us. FWIW, Dave McC
On 24/07/2005, at 9:29 AM, George = Lendich=20 wrote:

Kelly,
Maybe=20 at this present point in time, but who knows down the = track.
 
BTW=20 one size I omitted for the inner "O" ring was the .093" which was = approx 1 :=20 .77 - good for that size recess, I thought by just looking at = it,it =20 would be too small ( thin), which Bill identified as being a = uneducated=20 response.
I=20 ment to tell you, but = forgot.
I=20 am also now thinking that the .093 may be too large for the outer - = however=20 it won't see the same heat, nor expand as much as the = inner.
Their=20 results will be = interesting.
George=20 ( down under)
George,
    It may be that only you = and I=20 are interested in the correct size of the
coolent O-rings = and/or the=20 need for a TES outer O-ring........Housing
is boxed and ready = to ship=20 to "Creavey" Monday !
--
Kelly Troyer
Dyke=20 = Delta/13B/RD1C/EC2




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