X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 02 May 2010 15:14:07 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-masked.atl.sa.earthlink.net ([209.86.89.68] verified) by logan.com (CommuniGate Pro SMTP 5.3.6) with ESMTP id 4244662 for lml@lancaironline.net; Sun, 02 May 2010 08:26:54 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.68; envelope-from=artbertolina@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=GcW2hBdmPbbcvjSTq65bRoAnvYckXP6lf0b/20IMRoIEaPiptgDIgABFQtMVxC93; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MIMEOLE:X-ELNK-Trace:X-Originating-IP; Received: from [24.121.161.239] (helo=LAPTOP2) by elasmtp-masked.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1O8YFV-0002tO-72 for lml@lancaironline.net; Sun, 02 May 2010 08:26:17 -0400 X-Original-Message-ID: <7DCCFFE649704E13A3775A9C2C760AB0@LAPTOP2> From: "Art Bertolina" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] TSIO 550E IV-P vibration X-Original-Date: Sun, 2 May 2010 05:26:13 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0122_01CAE9B7.FB069500" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-ELNK-Trace: 1c57f4aab304e4a6fc8cc707cfd6285a4d2b10475b5711205c2f7bfa3681de5ef055f72fac4023ea809a445fe0f53d66350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 24.121.161.239 This is a multi-part message in MIME format. ------=_NextPart_000_0122_01CAE9B7.FB069500 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bob do you turn on low boost at 10,000 ft?. ----- Original Message -----=20 From: Bob Rickard=20 To: lml@lancaironline.net=20 Sent: Saturday, May 01, 2010 9:43 PM Subject: [LML] TSIO 550E IV-P vibration TSIO 550 guys and or smart engine guys: =20 I am having a vibration issue and want to see if anyone has ideas on = what to look for. Basically, at takeoff and climbout to around 10,000', = the motor and prop are very smooth and strong. There is no vibration = (prop very recently balanced) and all numbers are normal. As I pass = above 10k to the low flight levels, a vibration in the motor starts to = develop, and when I level off and set the engine for cruise (LOP, 18gph, = 34 MAP, 2500 RPM) the vibration is at its worst. It's almost like the = prop is out of balance, which is why I had the prop balanced at 2500 = rpm. Speeds are good and all engine numbers are normal, no changes. = This will remain for an hour or 2, then the motor seems to magically = smooth itself out. On descent and landing, motor seems smooth and all = numbers are normal. Very recently, on a 4.5 hour flight, about 3.5 to 4 = hours in the vibration slowly came back. I don't know what to blame, = and my motor mechanic is looking at me funny. I should note that at no = time do I think the vibration is horrible or unsafe, just annoying. I = can feel it in the stick and see it in the panel when its happening. =20 Things I have ruled out: Balance of the prop Dirty plugs or fuel injectors (new plugs and cleaned = injectors) Speed effect (increase or decrease speed has no = effect) Fuel issues Flight control flutter or anything like that =20 Things that have been suggested: A bad valve in a cylinder that doesn't show until you = get to altitude, Or bad compression in a cylinder that comes and goes = (all cyl's were comp tested a month ago though) Turbo controller not scheduling properly as you climb Fuel injection system malf? =20 I'm hoping one of you has had this problem and can point me and the = mechanic to the possible culprit. Appreciate any comments =20 Bob Rickard IV-P =20 =20 ------=_NextPart_000_0122_01CAE9B7.FB069500 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Bob
do you turn on low boost at 10,000=20 ft?.
----- Original Message -----
From:=20 Bob=20 Rickard
Sent: Saturday, May 01, 2010 = 9:43=20 PM
Subject: [LML] TSIO 550E IV-P=20 vibration

TSIO 550 guys and or smart engine = guys:

 

I am having a vibration issue and want to see if = anyone has=20 ideas on what to look for.  Basically, at takeoff and climbout to = around=20 10,000=92, the motor and prop are very smooth and strong.  There = is no=20 vibration (prop very recently balanced) and all numbers are = normal.  As I=20 pass above 10k to the low flight levels, a vibration in the motor = starts to=20 develop, and when I level off and set the engine for cruise (LOP, = 18gph, 34=20 MAP, 2500 RPM) the vibration is at its worst.  It=92s almost like = the prop=20 is out of balance, which is why I had the prop balanced at 2500 = rpm. =20 Speeds are good and all engine numbers are normal, no changes.  = This will=20 remain for an hour or 2, then the motor seems to magically smooth = itself out.=20 On descent and landing, motor seems smooth and all numbers are normal. = Very=20 recently, on a 4.5 hour flight, about 3.5 to 4 hours in the vibration = slowly=20 came back.  I don=92t know what to blame, and my motor mechanic = is looking=20 at me funny.  I should note that at no time do I think the = vibration is=20 horrible or unsafe, just annoying.  I can feel it in the stick = and see it=20 in the panel when its happening.

 

Things I have ruled out:

         &= nbsp;     =20 Balance of the prop

         &= nbsp;     =20 Dirty plugs or fuel injectors (new plugs and cleaned = injectors)

         &= nbsp;     =20 Speed effect (increase or decrease speed has no effect)

         &= nbsp;     =20 Fuel issues

         &= nbsp;     =20 Flight control flutter or anything like that

 

Things that have been suggested:

         &= nbsp;     =20 A bad valve in a cylinder that doesn=92t show until you get to=20 altitude,

         &= nbsp;     =20 Or bad compression in a cylinder that comes and goes (all cyl=92s were = comp=20 tested a month ago though)

         &= nbsp;     =20 Turbo controller not scheduling properly as you climb

         &= nbsp;     =20 Fuel injection system malf?

         &= nbsp;     =20

I=92m hoping one of you has had this problem and = can point me=20 and the mechanic to the possible culprit.  Appreciate any=20 comments

 

Bob Rickard

IV-P

 

 

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