X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail26.syd.optusnet.com.au ([211.29.133.167] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTPS id 942039 for flyrotary@lancaironline.net; Thu, 12 May 2005 18:08:54 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.133.167; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-29-226.dsl.nsw.optusnet.com.au [220.236.29.226]) by mail26.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j4CM841f014833 for ; Fri, 13 May 2005 08:08:06 +1000 Message-ID: <008701c5573f$b11b7510$e21decdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Soft Seals Sloppy slots S^4 Date: Fri, 13 May 2005 08:12:30 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0084_01C55793.82536680" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_0084_01C55793.82536680 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageMark, I am behind in my mail but feel had to respond. I have a feeling that the Hurley Seals are pretty good, as they are the = seal 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. George( down under) Rusty, =20 Just to let you know where I'm coming from on this. First, I have 3mm = Hurley seals installed in my 20B, and don't 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 soft, then I would like to know about it now, not after = they ruin my day. The comment 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 stock Mazda seals as well to use as a reference = point to know how the Hurley seals compare. =20 Mark =20 =20 -------------------------------------------------------------------------= ----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Russell Duffy Sent: Monday, April 25, 2005 1:30 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Soft Seals Sloppy slots S^4 =20 Rusty, Mark I have access to the equipment to perform a Rockwell Hardness test. = If you want you can send the old seals to me and I could have the test = run the day after I receive them. Let me know . =20 Hi Bob, =20 If Ed wants to send a piece 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 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. =20 =20 BTW Ed, I would absolutely not install those odd plugs until you get = home. It certainly sounds 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 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 slight chance until you get home and = can circle your own field for testing? =20 Rusty =20 =20 =20 ------=_NextPart_000_0084_01C55793.82536680 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Mark,
I am behind in my mail but feel had to=20 respond.
I have a feeling that the Hurley Seals = are pretty=20 good, as they are the seal of choice by many local Aussie rebuilders - = however=20 may suffer premature wear, in older rotors with worn apex seal grooves, = where=20 the wear hasn't been recognised before rebuild, as in Ed's = case.
George( down = under)
 
Rusty,

 

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

 

Mark =20   

 

From: Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Russell = Duffy
Sent: Monday, April 25, 2005 = 1:30=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 Re: Soft Seals Sloppy slots S^4

 

Rusty,=20 Mark

I have = access to the=20 equipment to perform a Rockwell Hardness test.  If you = want you can=20 send the old seals to me and I could have the test run = the day=20 after I receive them.  Let me know = .

 

Hi=20 Bob,

 

If Ed wants = to send a=20 piece of his broken seal, I'm certainly game to send one of my=20 seals also.  I'm not really sure what we'll prove by this, = other=20 than finding out if Ed's seal was sub-Hurley-standard hardness.  = We don't=20 know what hardness is required, or desired, so having a figure for the = standard Hurley wouldn't seem to serve any purpose to=20 me.     

 

BTW Ed, I = would=20 absolutely not install those odd plugs until you get home.  It = certainly=20 sounds like they weren't hitting anything, but do you know that the = ground=20 electrode wasn't glowing red, and causing pre-ignition, or causing = some other=20 odd problem that we don't understand?  Even if you don't believe = those=20 plugs will cause any problems at all, why take even a slight chance = until you=20 get home and can circle your own field for=20 testing?

 

Rusty

   =

 

 

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