X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mx1.magmacom.com ([206.191.0.217] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTPS id 1004018 for flyrotary@lancaironline.net; Thu, 16 Jun 2005 10:52:54 -0400 Received-SPF: none receiver=logan.com; client-ip=206.191.0.217; envelope-from=ianddsl@magma.ca Received: from mail1.magma.ca (mail1.magma.ca [206.191.0.252]) by mx1.magmacom.com (8.13.0/8.13.0) with ESMTP id j5GEq8W9011469 for ; Thu, 16 Jun 2005 10:52:09 -0400 Received: from binky (ottawa-hs-64-26-156-111.s-ip.magma.ca [64.26.156.111]) by mail1.magma.ca (8.13.0/8.13.0) with SMTP id j5GEq6wO018053 for ; Thu, 16 Jun 2005 10:52:08 -0400 Reply-To: From: "Ian Dewhirst" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: turbo oil drain Date: Thu, 16 Jun 2005 10:52:04 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_007B_01C57261.6EC89340" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) In-reply-to: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_007B_01C57261.6EC89340 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit MessageHi Rusty, there is no rule that states that you have to use engine oil, since you already have a pump to scavenge and you really don't need much oil pressure for a turbo, add a small sump and a little cooler perhaps, and your worries of an engine oil leak are over. The added advantage is that you can lubricate before start and cool after shutdown. For the record I know there is not much under cowl room, but you seem like a fellow bent on adventure ;-) -- Ian For the record, I know it's hot :-) So does this mean the compressor side can have a seal, since it's not 1600 degrees? Would you almost always lose the oil out the exhaust, and not into the intake? If you lost it into the intake, it could affect the way the engine runs, but if it goes into the exhaust side, it will just blow out the pipe. This goes back to using an oil shutoff to stop the oil leak, but as we discussed before, you won't know this is happening unless you smell oil burning. I'm pretty well tuned into the smell of oil burning now though :-( I still have the stock low oil sensor functional in the pan, and it lights a very bright LED on the panel. Perhaps that would be my only warning, but you'd have no idea of where the oil was really being lost from. You'd essentially have to be willing to waste the turbo for any oil loss just in case it was in the turbo. By not planning to do this soon, it gives me time to think about all the options, and hopefully talk myself out of it :-) Cheers, Rusty (single rotor mount, take two) ------=_NextPart_000_007B_01C57261.6EC89340 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Hi Rusty, there is no rule that = states that=20 you have to use engine oil, since you already have a pump to scavenge = and you=20 really don't need much oil pressure for a turbo, add a small sump and a = little=20 cooler perhaps, and your worries of an engine oil leak are over.  = The added=20 advantage is that you can lubricate before start and cool=20 after shutdown.  For the record I know there is not much under = cowl=20 room, but you seem like a fellow bent on adventure ;-) -- = Ian
For the record, I know it's hot=20 :-)  
 
So does this mean the compressor = side can=20 have a seal, since it's not 1600 degrees?  Would you almost = always lose=20 the oil out the exhaust, and not into the intake?  If you lost it = into=20 the intake, it could affect the way the engine runs, but if it goes = into the=20 exhaust side, it will just blow out the pipe. 
 
This goes back to using an = oil=20 shutoff to stop the oil leak, but as we discussed before, you won't = know this=20 is happening unless you smell oil burning.  I'm pretty well tuned = into=20 the smell of oil burning now though :-(    =
 
I still have the stock low oil = sensor=20 functional in the pan, and it lights a very bright LED on the = panel. =20 Perhaps that would be my only warning, but you'd have no idea of where = the oil=20 was really being lost from.  You'd essentially have to be = willing to=20 waste the turbo for any oil loss just in case it was in the=20 turbo.  
 
By not planning to do this soon, = it gives=20 me time to think about all the options, and hopefully talk myself out = of it=20 :-)
 
Cheers,
Rusty (single rotor mount, take=20 two)
 
 
 
 
 
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