X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [199.185.220.224] (HELO priv-edtnes40.telusplanet.net) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 942149 for flyrotary@lancaironline.net; Thu, 12 May 2005 20:09:27 -0400 Received-SPF: pass receiver=logan.com; client-ip=199.185.220.224; envelope-from=echolakeresort@telus.net Received: from boucher-oddle24 ([207.194.26.126]) by priv-edtnes40.telusplanet.net (InterMail vM.6.01.04.04 201-2131-118-104-20050224) with ESMTP id <20050513000840.PJPD13189.priv-edtnes40.telusplanet.net@boucher-oddle24> for ; Thu, 12 May 2005 18:08:40 -0600 Received: from 127.0.0.1 (AVG SMTP 7.0.308 [266.11.6]); Thu, 12 May 2005 17:08:38 -0700 Message-Id: <4283F003.00001C.02748@BOUCHER-ODDLE24> Date: Thu, 12 May 2005 17:08:35 -0700 (Pacific Standard Time) X-Mailer: IncrediMail (3001609) From: "Echo Lake Fishing Resort (Georges Boucher)" References: To: Subject: Re: [FlyRotary] Re: Soft Seals Sloppy slots S^4 X-FID: FLAVOR00-NONE-0000-0000-000000000000 X-Priority: 3 Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=======AVGMAIL-4283F00642DD=======" --=======AVGMAIL-4283F00642DD======= Content-Type: Multipart/Alternative; boundary="------------Boundary-00=_B2JEZJA1VA4000000000" --------------Boundary-00=_B2JEZJA1VA4000000000 Content-Type: Text/Plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable =0D Hi! Rusty=0D I was talking to a couple of guys who build race engines(13b) they had po= or results with Hurley seal, lost 3 engines in a row (NA0 9500rpm max. I don= 't know what Atkins uses but they didn't think much of his as well. They hav= e been using a Canadian seal (very hidh pice) They are going to try Tracy's now.=0D Georges B.=0D -------Original Message-------=0D =0D From: Rotary motors in aircraft=0D Date: 05/12/05 15:08:58=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: Soft Seals Sloppy slots S^4=0D =0D Mark,=0D I am behind in my mail but feel had to respond.=0D I have a feeling that the Hurley Seals are pretty good, as they are the s= eal of choice by many local Aussie rebuilders - however may suffer premature wear, in older rotors with worn apex seal grooves, where the wear hasn't been recognised before rebuild, as in Ed's case.=0D George( down under)=0D =0D Rusty,=0D =0D Just to let you know where I=92m coming from on this. First, I have 3mm Hurley seals installed in my 20B, and don=92t relish the thought of teari= ng it apart to change out the apex seals. (At the time I was rebuilding my eng= ine Hurley seals were the seal of choice.) If they actually are too soft, t= hen I would like to know about it now, not after they ruin my day. The comme= nt was made that Hurley seals are so soft that they are wearing out pre-maturely. It would be a good yardstick to have the numbers on the st= ock Mazda seals as well to use as a reference point to know how the Hurley se= als compare.=0D =0D Mark =0D =0D =0D =0D =0D From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell Duffy=0D Sent: Monday, April 25, 2005 1:30 PM=0D To: Rotary motors in aircraft=0D Subject: [FlyRotary] Re: Soft Seals Sloppy slots S^4=0D =0D Rusty, Mark=0D I have access to the equipment to perform a Rockwell Hardness test. If y= ou want you can send the old seals to me and I could have the test run the d= ay after I receive them. Let me know .=0D =0D Hi Bob,=0D =0D If Ed wants to send a piece of his broken seal, I'm certainly game to sen= d one of my seals also. I'm not really sure what we'll prove by this, othe= r than finding out if Ed's seal was sub-Hurley-standard hardness. We don't know what hardness is required, or desired, so having a figure for the standard Hurley wouldn't seem to serve any purpose to me. =0D =0D BTW Ed, I would absolutely not install those odd plugs until you get home= =2E=20 It certainly sounds like they weren't hitting anything, but do you know t= hat the ground electrode wasn't glowing red, and causing pre-ignition, or causing some other odd problem that we don't understand? Even if you don= 't believe those plugs will cause any problems at all, why take even a sligh= t chance until you get home and can circle your own field for testing?=0D =0D Rusty=0D =0D =0D =0D =20 --------------Boundary-00=_B2JEZJA1VA4000000000 Content-Type: Text/HTML; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
 
 Hi! Rusty
I was talking to a couple of guys who build race engines(13b) they h= ad poor results with Hurley seal, lost 3 engines in a row (NA0 9500rpm ma= x. I don't know what Atkins uses but they didn't think much of his as wel= l. They have been using a Canadian seal (very hidh pice) They are going t= o try Tracy's now.
Georges B.
-------Original Message-------
 
Date: 05/12/05 15:= 08:58
Subject: [FlyRotar= y] Re: Soft Seals Sloppy slots S^4
 
Mark,
I am behind in my mail but feel had to r= espond.
I have a feeling that the Hurley Seals a= re pretty good, as they are the seal of choice by many local Aussie rebui= lders - however may suffer premature wear, in older rotors with worn apex= seal grooves, where the wear hasn't been recognised before rebuild, as i= n Ed's case.
George( down under)<= /DIV>
 
Rusty,

 

Just to let you kno= w where I=92m coming from on this.  First, I have 3mm Hurley seals i= nstalled in my 20B, and don=92t relish the thought of tearing it apart to= change out the apex seals.  (At the time I was rebuilding my engine= , Hurley seals were the seal of choice.)  If they actually are too s= oft, then I would like to know about it now, not after they ruin my day.&= nbsp; The comment was made that Hurley seals are so soft that they are we= aring out pre-maturely.  It would be a good yardstick to have the nu= mbers on the stock Mazda seals as well to use as a reference point to kno= w how the Hurley seals compare.

 

Mark   &n= bsp;

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net= ] On Behalf Of Russell Du= ffy
Sent: Monday, Apri= l 25, 2005 1:30 PM
To:= Rotary motors in aircraft
Subjec= t: [FlyRotary] Re: Soft Seals Sloppy slots S^4

 

Rusty, Mark<= /FONT>

I have access to th= e equipment to perform a Rockwell Hardness test.  If you want y= ou can send the old seals to me and I could have the test = run the day after I receive them.  Let me know .<= /O:P>

 

Hi Bob,

 

If Ed wants to send a p= iece of his broken seal, I'm certainly game to send one of my seals = also.  I'm not really sure what we'll prove by this, other than find= ing out if Ed's seal was sub-Hurley-standard hardness.  We don't kno= w what hardness is required, or desired, so having a figure for the stand= ard Hurley wouldn't seem to serve any purpose to me.   &nb= sp; 

 

BTW Ed, I would absolut= ely not install those odd plugs until you get home.  It certainly so= unds like they weren't hitting anything, but do you know that the ground = electrode wasn't glowing red, and causing pre-ignition, or causing some o= ther odd problem that we don't understand?  Even if you don't believ= e those plugs will cause any problems at all, why take even a slight chan= ce until you get home and can circle your own field for testing?

 

Rusty

  

 

 

 
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