X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 10 Jan 2012 12:55:17 -0500 Message-ID: X-Original-Return-Path: Received: from nm17.access.bullet.mail.sp2.yahoo.com ([98.139.44.144] verified) by logan.com (CommuniGate Pro SMTP 5.4.3) with SMTP id 5343557 for lml@lancaironline.net; Mon, 09 Jan 2012 17:50:46 -0500 Received-SPF: none receiver=logan.com; client-ip=98.139.44.144; envelope-from=paulhershorin@bellsouth.net Received: from [98.139.44.106] by nm17.access.bullet.mail.sp2.yahoo.com with NNFMP; 09 Jan 2012 22:50:10 -0000 Received: from [98.139.44.79] by tm11.access.bullet.mail.sp2.yahoo.com with NNFMP; 09 Jan 2012 22:50:10 -0000 Received: from [127.0.0.1] by omp1016.access.mail.sp2.yahoo.com with NNFMP; 09 Jan 2012 22:50:10 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 488897.41198.bm@omp1016.access.mail.sp2.yahoo.com Received: (qmail 86926 invoked by uid 60001); 9 Jan 2012 22:50:10 -0000 DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=bellsouth.net; h=X-YMail-OSG:Received:X-Mailer:Message-ID:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=3VP0UjmSfU3oPuldgN2YZOarK/HEh1iYVwiQjbjxuKk/izVwtcvkZaACPY7wmtMLc4ZJ3gqy1Reic+0/2D4yyElh27w0C1rXXYF4VVKPbJ1mQ+cJoGGH4mQ2Bo5YuSh57wleQi0HBlJjW9U9AB9hQeklOe5b5iWALZt0DqWrpbk=; X-YMail-OSG: 6la7AfQVM1mZ.jn77MTmtxil0CdP.i3uQBgLwP.zSL_Smsv ZmZjGzT_LUCbJZg2R3U1HB3ScqohWhrwgE2ig2n72HUu.einTI6MnLeOId_H jqd9gvzoH4CJibpOPDETj6mgvmxcbwvb64Qu_1hLfOhhrEP6FVgetEz4nfZe 3tvWI.x4DPTpCzWDvuuMx238wJHdxF8WWc2NM9614T2QjPy5iqLU48Zp1uTB lckx116PQh0aq3cEuhrUcJoEsbjEO_ts4uf9i45Vgi9smpsVgCvoA8RAEWJJ Mcr9vLKAew_7qXE4E1aHLuc_rnzu6eFHT_5XBNjTo5.x2FpvJlybQx6pH0RD RvHldEZdmrtyj0i5ZkewVpUAdxk5rrkmFZsmVVSGCNwJMrjNGdZBvSdHr8ta IYUxgg0DuiD2W1ocGdDtI7RSHRgqx5wxHEmli.eGJE1OISaEep2m51M5JCV. xvxHrZKEa3eupCbje2BUZlmjaqzqdTKR0euluqFKXtOwiOWJIbTkD.EKXj8K vEXngjWl9olmK8ddeklr7z4z4nDsBBDgxqE5iTdljy57hO5RLEQW1eAKbEB9 N9zSi4uGM Received: from [98.77.119.144] by web83907.mail.sp1.yahoo.com via HTTP; Mon, 09 Jan 2012 14:50:10 PST X-Mailer: YahooMailClassic/15.0.4 YahooMailWebService/0.8.115.331698 X-Original-Message-ID: <1326149410.76273.YahooMailClassic@web83907.mail.sp1.yahoo.com> X-Original-Date: Mon, 9 Jan 2012 14:50:10 -0800 (PST) From: PAUL HERSHORIN Subject: Re: [LML] Re: Gear shimmy X-Original-To: Lancair Mailing List In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="198186004-2034570739-1326149410=:76273" --198186004-2034570739-1326149410=:76273 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Did you change a tire--it may be out of round or bad--this happened to me. Paul Hershoein 360 471LA --- On Sun, 1/8/12, pete@leapfrogventures.com w= rote: From: pete@leapfrogventures.com Subject: [LML] Re: Gear shimmy To: lml@lancaironline.net Date: Sunday, January 8, 2012, 8:50 PM Paul,=20 =C2=A0 Thanks for the feedback.=C2=A0 I do have the Lancair casting for jacking th= e plane, which is great for changing tires and brakes, but it does not help= for checking whether the gear leg is loose in the upper socket.=C2=A0 I bo= rrowed a wing jack and a carpeted 12=E2=80=9D square pad from my local mech= anic and was able to get the gear off of the ground.=C2=A0 The legs seemed = as tight as they were when first installed. =C2=A0 Note that I have had absolutely no shimmy for the first 250 hours I have fl= own the plane.=C2=A0 It just showed up a month or so ago.=C2=A0=C2=A0 Maybe= a brake issue?=C2=A0 I don=E2=80=99t feel it on initial roll-out, just as = I slow between 40 to 20 knots. =C2=A0 I=E2=80=99ll do a search on the other forum.=C2=A0 Again, thanks for the as= sistance. =C2=A0 Pete =C2=A0 From: Paul Bricker [mailto:pbricker@att.net]=20 Sent: Thursday, January 05, 2012 10:59 AM To: lml@lancaironline.net Subject: Re: [LML] Gear shimmy =C2=A0 Pete, First with the easy question. There is a casting you can buy from Lancair p= arts that "clips" around the lower end of the gear leg and provides a jack = point for a floor jack. You'll also want this during condition inspections = when you remove the wheels to repack the bearings. If you can't get one fro= m Redmond let me know off list. I may know where an 'extra" is. =C2=A0 The shimmy question has been explored, investigated, experimented on, photo= graphed, argued over, and generally beaten by many on this list. Main gear = leg movement is one of what, by my count, appears to be 3 possible causes. = The others are loss of damping in the strut, and movement in the mount betw= een the strut and the motor mount. I'm sure other people will soon jump in = with all the other causes I've forgotten.=C2=A0 =C2=A0 I recommend joining the [Lancair_ES] list. Their archives should have more = details on this ES issue. There are many who have worked this problem dilig= ently who monitor this list, so standby for more advise. =C2=A0 Paul Bricker pbricker@att.net =C2=A0 From: "pete@leapfrogventures.com" Reply-To: Lancair Mailing List Date: Wed, 04 Jan 2012 16:38:21 -0500 To: Subject: [LML] Gear shimmy =C2=A0 After 250 shimmy free hours, I am now getting gear shimmy when my ES-P slow= s down through about 30 knots.=C2=A0 I think I recall folks saying this is = due to looseness in the upper main gear leg sockets.=C2=A0 Is this correct,= or is there another cause?=C2=A0 My strut (new version) looks fine. =C2=A0 If it is loose main gear, how do you suggest that I get the main gear off o= f the ground?=C2=A0 There are no obvious jack points. =C2=A0 Thanks for the advice! =C2=A0 Pete --198186004-2034570739-1326149410=:76273 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Did you change a tire--it may be out of = round or bad--this happened to me.
Paul Hershoein
360 471LA

--- On Sun, 1/8/12, pete@leapfrogventures.com &= lt;pete@leapfrogventures.com> wrote:

From: pete@leapfrogventures.com <pete@leapfrog= ventures.com>
Subject: [LML] Re: Gear shimmy
To: lml@lancaironline= .net
Date: Sunday, January 8, 2012, 8:50 PM

Paul,

 

Thanks for t= he feedback.  I do have the Lancair casting for jacking the plane, whi= ch is great for changing tires and brakes, but it does not help for checkin= g whether the gear leg is loose in the upper socket.  I borrowed a win= g jack and a carpeted 12=E2=80=9D square pad from my local mechanic and was= able to get the gear off of the ground.  The legs seemed as tight as = they were when first installed.

 

Note that I = have had absolutely no shimmy for the first 250 hours I have flown the plan= e.  It just showed up a month or so ago.   Maybe a brake iss= ue?  I don=E2=80=99t feel it on initial roll-out, just as I slow betwe= en 40 to 20 knots.

 

I=E2=80=99ll= do a search on the other forum.  Again, thanks for the assistance.

 

Pete

 

From: Paul Bricker [mailto:pbricker@att.net]
Sent: Thursday, January 05, 2012 10:59 AM
To: lml@lancaironline.net<= BR>Subject: Re: [LML] Gear shimmy

 

Pete,

First with the easy question. There is a = casting you can buy from Lancair parts that "clips" around the lower end of= the gear leg and provides a jack point for a floor jack. You'll also want = this during condition inspections when you remove the wheels to repack the = bearings. If you can't get one from Redmond let me know off list. I may kno= w where an 'extra" is.

 

The shimmy question has been explored, in= vestigated, experimented on, photographed, argued over, and generally beate= n by many on this list. Main gear leg movement is one of what, by my count,= appears to be 3 possible causes. The others are loss of damping in the str= ut, and movement in the mount between the strut and the motor mount. I'm su= re other people will soon jump in with all the other causes I've forgotten.=  

 

I recommend joining the [Lancair_ES] list= . Their archives should have more details on this ES issue. There are many = who have worked this problem diligently who monitor this list, so standby f= or more advise.

 

Paul Bricker

 

From: "pete@leapfrogventures.com<= /A>" <pete@leapfrogventures.com>
Reply-To: L= ancair Mailing List <lml@lancaironline.net>
Date: We= d, 04 Jan 2012 16:38:21 -0500
To: <lml@lancaironline.net>
Subject: [LML] Gear shimmy

 

After 250 sh= immy free hours, I am now getting gear shimmy when my ES-P slows down throu= gh about 30 knots.  I think I recall folks saying this is due to loose= ness in the upper main gear leg sockets.  Is this correct, or is there= another cause?  My strut (new version) looks fine.

 

If it is loo= se main gear, how do you suggest that I get the main gear off of the ground= ?  There are no obvious jack points.

 

Thanks for t= he advice!

 

Pete<= /DIV>

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