X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [65.54.250.75] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 983345 for flyrotary@lancaironline.net; Mon, 13 Feb 2006 15:57:13 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.250.75; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 13 Feb 2006 12:52:43 -0800 Message-ID: Received: from 4.171.147.201 by BAY115-DAV3.phx.gbl with DAV; Mon, 13 Feb 2006 20:52:43 +0000 X-Originating-IP: [4.171.147.201] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Another rotary failure Date: Mon, 13 Feb 2006 15:52:40 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0025_01C630B5.854D5750" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Mon, 13 Feb 2006 15:52:41 -0500 X-OriginalArrivalTime: 13 Feb 2006 20:52:43.0663 (UTC) FILETIME=[6FB549F0:01C630DF] This is a multi-part message in MIME format. ------=_NextPart_000_0025_01C630B5.854D5750 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageGood find on the Mazdatrix aftermarket seals Rusty, I was not = aware of that. Mazda's new 2mm seal design is 2 piece (introduced in = 2004 I think), the 3 piece is obsolete. It is quite possible that = Chuck got his prior to the new Mazda design so he could have the = aftermarket parts. RWS does not furnish seals to Mazdatrix so guess = they would have to be Hurley or Atkins (same material AFIK). =20 FWIW, the admittedly second hand info I get here says that Hurley & = Atkins have at some point about 1 - 2 years ago changed material after = complaints of too much rotor and housing damage after apex seal failure. = They apparently succeeded in reducing it by making the material crumble = more easily but this results in even more seal failures. Keep in mind = this is hear-say based on customer comments. I'm also hearing negative reports on the Mazda 2 piece seals. As far as = the 3 piece seals that generate a lot of negative comment, they are what = I used for the first 856 hours, which is longer than I have used any = other seals. It takes a lot more time and samples than this to be = meaningful so do not take this as truth carved in stone. I offer this = as anecdotal data only. I currently use stock Mazda Renesis seals = because RWS (nor anyone else) makes them yet. Tracy ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Monday, February 13, 2006 2:45 PM Subject: [FlyRotary] Re: Another rotary failure Stock seals in 2mm are three piece which are junk but the stock 3mm = seals are two piece and they are very good quality. Dave were they 2 or 3mm seals ??? Ken=20 Hi Ken, I think we were talking about Chuck's most recent problem, not Dave's. = =20 As for the seals, IIRC, Mazda made 2 and 3 piece 2mm seals over the = years. I can't recall which years though. Looking at the Mazdatrix = site, they list 86-95, 2mm, steel 2-piece Mazda seals. I don't see a = listing for 3 piece (maybe because they're junk). They also list = aftermarket 2-piece 2mm seals as well, so if he bought them from = Mazdatrix, they could have been non-Mazda seals. =20 Rusty ------=_NextPart_000_0025_01C630B5.854D5750 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Good find on the Mazdatrix aftermarket seals Rusty, I was not aware = of=20 that.  Mazda's new 2mm seal design is 2 piece (introduced in 2004 I = think),=20 the 3 piece is obsolete.   It is quite possible that Chuck got = his=20 prior to the new Mazda design so he could have the aftermarket=20 parts.   RWS does not furnish seals to Mazdatrix so = guess=20 they would have to be Hurley or Atkins  (same material AFIK).  =
 
FWIW, the admittedly second hand info I get here says that Hurley = &=20 Atkins have at some point about 1 - 2 years ago changed material after=20 complaints of too much rotor and housing damage after apex seal=20 failure.  They apparently succeeded in reducing it by making the = material=20 crumble more easily but this results in even more seal=20 failures.  Keep in mind this is hear-say based on customer=20 comments.
 
I'm also hearing negative reports on the Mazda 2 piece seals.  = As far=20 as the 3 piece seals that generate a lot of negative = comment,=20 they are what I used for the first 856 hours, which is longer than I = have used=20 any other seals.  It takes a lot more time and samples than this to = be=20 meaningful so do not take this as truth carved in stone.  I offer = this as=20 anecdotal data only.  I currently use stock Mazda Renesis seals = because RWS=20 (nor anyone else) makes them yet.
 
Tracy
----- Original Message -----
From: Russell Duffy
To: Rotary motors in = aircraft
Sent: Monday, February 13, 2006 = 2:45=20 PM
Subject: [FlyRotary] Re: = Another rotary=20 failure

   Stock seals in 2mm are three = piece which=20 are junk but the stock 3mm seals are two piece and they are very good=20 quality.
  Dave were they 2 or 3mm seals = ???
  Ken 
 
Hi=20 Ken,
 
I think we=20 were talking about Chuck's most recent problem, not Dave's. =20
 
As for the=20 seals, IIRC, Mazda made 2 and 3 piece 2mm seals over the = years.  I=20 can't recall which years though.  Looking at the Mazdatrix site, = they=20 list 86-95, 2mm, steel 2-piece Mazda seals.  I don't see a = listing for 3=20 piece (maybe because they're junk).  They also list = aftermarket=20 2-piece 2mm seals as well, so if he bought them from Mazdatrix, they = could=20 have been non-Mazda seals.   
 
Rusty
 
<= /HTML> ------=_NextPart_000_0025_01C630B5.854D5750--