X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 29 Aug 2007 23:28:16 -0400 Message-ID: X-Original-Return-Path: Received: from wx-out-0506.google.com ([66.249.82.231] verified) by logan.com (CommuniGate Pro SMTP 5.1.11) with ESMTP id 2292115 for lml@lancaironline.net; Wed, 29 Aug 2007 17:40:19 -0400 Received-SPF: pass receiver=logan.com; client-ip=66.249.82.231; envelope-from=akadamson@gmail.com Received: by wx-out-0506.google.com with SMTP id i27so290657wxd for ; Wed, 29 Aug 2007 14:39:42 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:from:to:cc:references:subject:date:message-id:mime-version:content-type:x-mailer:thread-index:x-mimeole:in-reply-to:sender; b=VmX1+2npHvzpbp1ah0oL0p++PziC2xzumxc+66xjVhtQTdTGv7ZW+S1O7C3TK/ufey+fEl+HDUTgvvfBQ2onpdg2WWsGLXLPxdsjbPrOKcX3Y/+BH3eTyzCGTLaa8wy472mJtLkZeaH9xRw/XSjOHxhmVRDV4r6LZJ8pz1GkbXQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:from:to:cc:references:subject:date:message-id:mime-version:content-type:x-mailer:thread-index:x-mimeole:in-reply-to:sender; b=RQTK31CsRHJ0hlg4IIrFyeic3DKf1jVs82GZ5JiE3IZUv3Uw1Fp9Z/62cVaifYzow3ADICJQvfHt+T/FUQ6IstWVjeAPTO0lWlNTuyDlcv1/V4sVoaB4jPcMgwKpSf0PqnQhoaXYWeo4khY0moDXaAa1lGT7pCExEfgdDSdodag= Received: by 10.70.105.19 with SMTP id d19mr1865271wxc.1188423582406; Wed, 29 Aug 2007 14:39:42 -0700 (PDT) X-Original-Return-Path: Received: from Typhoon ( [76.97.33.144]) by mx.google.com with ESMTPS id i38sm20741205wxd.2007.08.29.14.39.41 (version=SSLv3 cipher=RC4-MD5); Wed, 29 Aug 2007 14:39:41 -0700 (PDT) From: "Alan Adamson" X-Original-To: "'Lancair Mailing List'" X-Original-Cc: "'rtitsworth'" References: Subject: RE: [LML] TSIO-550 Engine fittings question X-Original-Date: Wed, 29 Aug 2007 17:39:41 -0400 X-Original-Message-ID: <00e501c7ea85$1c1bea90$0202fea9@highrf.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00E6_01C7EA63.950A4A90" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AcfqhGmBXLZoTsDJTeyt/6fhlhJLjQAAIewQ X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 In-Reply-To: X-Original-Sender: Alan Adamson This is a multi-part message in MIME format. ------=_NextPart_000_00E6_01C7EA63.950A4A90 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I'm certainly no expert, but sometimes they do this with one playing the part of the sacrificial lamb. It's much easier to repair threads etc if you can get that part out than if you have to drill and tap the case (which you probably can't do). Just a thot on some of those things... Alan _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of rtitsworth Sent: Wednesday, August 29, 2007 5:35 PM To: lml@lancaironline.net Subject: [LML] TSIO-550 Engine fittings question Put this is the category of you don't know what you don't know. The attached photo shows two fittings. The top one (actually two) is from the bottom of a TSIO0550 oil cooler where it feeds the turbo's (for cooling) - at least that's what was on my engine and seems to reflect the diagram in the TCM manual. The bottom one is functionally the same thing but is a single fitting that I got from a local hydraulic fitting supplier. Is there a reason that TCM used two fittings when they could have got by with one? It appears the original(s) might be brass and steel (plated). I'll re-check when I'm out at the hanger. The new/bottom one is steel (plated). Perhaps there is some issue with the steel fitting in the aluminum oil cooler housing (galvanic/seizing), or perhaps they intend the brass fitting to be softer when attempting to get it in/out (if it's stuck), or ???? Anyone have any insight before I insert the new one? I was going this way because I desired the shorter fitting for better hose clearance/alignment. Also, some time ago, I replaced a 90 degree TCM fitting on the fuel pump with a 45 degree steel one. Now, I don't recall if the original was brass? and/or don't know if that was a mistake for some reason. I don't recall anything in 43.14 regarding brass vs steel fittings in aluminum housings - but's there's plenty of stuff in there that I may have missed/forgotten. Rick Titsworth ------=_NextPart_000_00E6_01C7EA63.950A4A90 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
I'm certainly no expert, but sometimes they = do this=20 with one playing the part of the sacrificial lamb.  It's much = easier to=20 repair threads etc if you can get that part out than if you have to = drill and=20 tap the case (which you probably can't do).
 
Just a thot on some of those=20 things...
 
Alan

From: Lancair Mailing List=20 [mailto:lml@lancaironline.net] On Behalf Of = rtitsworth
Sent:=20 Wednesday, August 29, 2007 5:35 PM
To:=20 lml@lancaironline.net
Subject: [LML] TSIO-550 Engine fittings=20 question

 

Put this is = the=20 category of you don’t know what you don’t know…  = The attached photo shows=20 two fittings.

The top one = (actually=20 two) is from the bottom of a TSIO0550 oil cooler where it feeds the = turbo’s (for=20 cooling) - at least that’s what was on my engine and seems to = reflect the=20 diagram in the TCM manual.  The bottom one is functionally the same = thing=20 but is a single fitting that I got from a local hydraulic fitting=20 supplier.

 

Is there a = reason that=20 TCM used two fittings when they could have got by with=20 one?

 

It appears = the=20 original(s) might be brass and steel (plated).  I’ll re-check = when I’m out=20 at the hanger.  The new/bottom one is steel (plated).  Perhaps = there=20 is some issue with the steel fitting in the aluminum oil cooler housing=20 (galvanic/seizing), or perhaps they intend the brass fitting to be = softer when=20 attempting to get it in/out (if it’s stuck), or=20 ????

 

Anyone have = any insight=20 before I insert the new one?  I was going this way because I = desired the=20 shorter fitting for better hose=20 clearance/alignment.

 

Also, some = time ago, I=20 replaced a 90 degree TCM fitting on the fuel pump with a 45 degree steel = one.  Now, I don’t recall if the original was brass? and/or = don’t know if=20 that was a mistake for some reason.  I don’t recall anything = in 43.14=20 regarding brass vs steel fittings in aluminum housings – = but’s there’s plenty of=20 stuff in there that I may have = missed/forgotten.

 

Rick=20 Titsworth

 

 

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