Return-Path: Received: from imf19aec.mail.bellsouth.net ([205.152.59.67] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3181636 for flyrotary@lancaironline.net; Tue, 20 Apr 2004 20:17:09 -0400 Received: from TOSHIBAjhr ([216.76.210.157]) by imf19aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with SMTP id <20040421001708.PXEJ1774.imf19aec.mail.bellsouth.net@TOSHIBAjhr> for ; Tue, 20 Apr 2004 20:17:08 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Autopsy on turbo Date: Tue, 20 Apr 2004 20:17:07 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B3_01C42714.741F1600" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_00B3_01C42714.741F1600 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Rusty said: Inside the turbine housing, there's a thin divider that goes between the two exhaust chambers. My decision to abandon the Mazda turbo was based on disassembling a use turbo (not the one I was flying), and finding severe cracks in this divider. Some of them were getting close to losing pieces of the divider, which could be what happened to John. If a piece of this breaks loose, it will impact the turbine, and potentially break the shaft. Nope. I have mine apart. The divider is (was) in good shape. Looks to me like the weld let go, probably because the bearings were weak and the shaft was occilating. I'll post pictures on my web site soon. > For the record, I have offered to sell mine to John For the record I've agreed to buy it. :) I'll be putting it on an "off-road" vehicle. Wayyyyyyyyyyy off road. > Since I wouldn't personally continue flying the stock turbo, > I certainly wouldn't encourage anyone else to do it either. I thought you removed the turbo mostly for weight reasons. At least this failure mode was fairly benign. If another one fails I'm outta here! Rusty (turbo free for 2 hours now) You say that like you gave up smoking or something :) Regards, John (turbo free for 10 minutes. Anxious to get back in the saddle) ------=_NextPart_000_00B3_01C42714.741F1600 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
Rusty=20 said:
Inside = the turbine=20 housing, there's a thin divider that goes between the two exhaust=20 chambers.   My decision to abandon the Mazda turbo = was based on=20 disassembling a use turbo (not the one I was flying), and=20 finding severe cracks in this divider.  Some of them were = getting=20 close to losing pieces of the divider, which could be what happened to=20 John.  If a piece of this breaks loose, it will impact the turbine, = and=20 potentially break the shaft.  =
&nbs= p;
Nope. I have mine apart. The = divider is=20 (was) in good shape. Looks to me like the weld let go, probably because = the=20 bearings were weak and the shaft was occilating. I'll post pictures on = my web=20 site soon.
&nbs= p;
 > For the=20 record, I have offered to sell mine to John 
For the record I've agreed to buy it.=20 :)
I'll be putting it on an "off-road" vehicle.=20 Wayyyyyyyyyyy off road.
&nbs= p;
> Since = I wouldn't=20 personally continue flying the stock turbo,  
> I = certainly=20 wouldn't encourage anyone else to do it either.   
&nbs= p;
I thought you removed the = turbo mostly for=20 weight reasons.
At least this failure mode was = fairly=20 benign. If another one fails I'm outta=20 here! 
&nbs= p;
Rusty = (turbo free for=20 2 hours now)  
You=20 say that like you gave up smoking or something=20 :) 
&nbs= p;
Regards,
John (turbo free for 10 = minutes. Anxious=20 to get back in the=20 saddle)
&nbs= p;
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