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 smtp108.sbc.mail.gq1.yahoo.com ([67.195.14.111] verified) by logan.com (CommuniGate Pro SMTP 5.3.6) with SMTP id 4244477 for lml@lancaironline.net; Sun, 02 May 2010 00:55:14 -0400 Received-SPF: none receiver=logan.com; client-ip=67.195.14.111; envelope-from=loantracy@sbcglobal.net Received: (qmail 79850 invoked from network); 2 May 2010 04:54:37 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=sbcglobal.net; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:Message-ID:From:To:References:In-Reply-To:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:Importance:X-Mailer:X-MimeOLE; b=E5Mb333RiM+7H8mUj6tQiQmWm/QVl7NSgpWFFUudDSFVtlDvPVNO3CckYpXwYSaDSlv2aJznoCX8PcaZiCqgauaPnjcHHx0yj0xuns/QV1Eix52AutjuC3mh4bw+1wyr3oRYBCGOszSDTb8vSYhPbIzlgrWBoNxi8TMginH3cwc= ; Received: from 99-137-239-141.lightspeed.frokca.sbcglobal.net (loantracy@99.137.239.141 with login) by smtp108.sbc.mail.gq1.yahoo.com with SMTP; 01 May 2010 21:54:37 -0700 PDT X-Yahoo-SMTP: LN43WayswBDMCJzZGaCEPUD2CdoSRuZ0PBcoiPUOut_8JSgD X-YMail-OSG: ItGzcI8VM1mZR6bCo8hu.BQKKidrR20IxpE.Nf2_lP8sMUM4rQPvdqnHVINK5hLf_.eLVgeSF3sHztPuSe1bDR88UjB4d.6xbkQ9yCBvlLu46AJuSCda_3VWq.vrXgK97rw21SV2.L1chF3ywMwXtDgYJcY0FWp0kiYdrx_.wJqNvkuHA3s1MlkAGorreJxYUhk3TRhUqtbjhQ5lNHes9cFpkZ3ix_4K9qWysO_nLNx6DNNzGgpuljqcGu93Z1TLtiWFRecwzru.BRQlQmKdn.370ih1fRxlbuVXhv6JXK11 X-Yahoo-Newman-Property: ymail-3 X-Original-Message-ID: <48E97DBB446F412E88831FC81AF11F2C@variantbk> From: "Jeff Pelletier" X-Original-To: "Lancair Mailing List" References: In-Reply-To: Subject: Re: [LML] TSIO 550E IV-P vibration X-Original-Date: Sat, 1 May 2010 21:54:39 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_002C_01CAE978.E5C96990" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8089.726 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8089.726 This is a multi-part message in MIME format. ------=_NextPart_000_002C_01CAE978.E5C96990 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable When were the engine mount to firewall bolts checked for torque?? Jeff Pelletier 209.609.0233 From: Bob Rickard=20 Sent: Saturday, May 01, 2010 9:43 PM To: lml@lancaironline.net=20 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 E-mail message checked by Spyware Doctor (7.0.0.514) Database version: 6.14900 http://www.pctools.com/spyware-doctor-antivirus/ ------=_NextPart_000_002C_01CAE978.E5C96990 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
When were the engine mount to = firewall bolts=20 checked for torque??
 
 
Jeff = Pelletier
209.609.0233

Sent: Saturday, May 01, 2010 9:43 PM
Subject: [LML] TSIO 550E IV-P 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 MAP,=20 2500 RPM) the vibration is at its worst.  It=92s almost like the = prop is out=20 of balance, which is why I had the prop balanced at 2500 rpm.  = Speeds are=20 good and all engine numbers are normal, no changes.  This will = remain for=20 an hour or 2, then the motor seems to magically smooth itself out. On = descent=20 and landing, motor seems smooth and all numbers are normal. Very = recently, on a=20 4.5 hour flight, about 3.5 to 4 hours in the vibration slowly came = back.  I=20 don=92t know what to blame, and my motor mechanic is looking at me = funny.  I=20 should note that at no time do I think the vibration is horrible or = unsafe, just=20 annoying.  I can feel it in the stick and see it in the panel when = its=20 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 tested=20 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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