X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 10 Mar 2010 07:16:17 -0500 Message-ID: X-Original-Return-Path: Received: from [69.146.254.20] (HELO crmtest.arilabs.net) by logan.com (CommuniGate Pro SMTP 5.3.4) with ESMTP id 4160626 for lml@lancaironline.net; Tue, 09 Mar 2010 17:29:44 -0500 Received-SPF: none receiver=logan.com; client-ip=69.146.254.20; envelope-from=kevin@arilabs.net Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----_=_NextPart_001_01CABFD8.A7F720F4" Subject: RE: [LML] Re: starter drive problem IO550 X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 X-Original-Date: Tue, 9 Mar 2010 15:34:16 -0700 X-Original-Message-ID: <3E1C96B95693C640B0AC2F59D2500F3B09F517@crmtest.arilabs.net> X-MS-Has-Attach: yes X-MS-TNEF-Correlator: Thread-Topic: [LML] Re: starter drive problem IO550 Thread-Index: Acq/17MX0NDMA9SLSNqoE1ouFO0XzAAAII5Q From: "Kevin Stallard" X-Original-To: "Lancair Mailing List" This is a multi-part message in MIME format. ------_=_NextPart_001_01CABFD8.A7F720F4 Content-Type: multipart/alternative; boundary="----_=_NextPart_002_01CABFD8.A7F720F4" ------_=_NextPart_002_01CABFD8.A7F720F4 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable My understanding is that there is actually a TCM spec somewhere that indicates how much torque it takes to turn the starter motor when it is not running. I heard that Iskra is way out side that spec and so it can't turn backwards with the torque of the spring alone. The old Prestolites were designed to this spec. =20 Kevin ________________________________ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Richard T. Schaefer Sent: March 09, 2010 15:22 To: lml@lancaironline.net Subject: [LML] Re: starter drive problem IO550 =20 What do I need to focus on ?=20 1) How fast the starter gear returns to original position ? 2) Or the fact that it is still moving after being disengaged ?=20 =20 =20 =20 ________________________________ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Kent Sent: Tuesday, March 09, 2010 2:34 PM To: lml@lancaironline.net Subject: [LML] Re: starter drive problem IO550 =20 Here is a link to a video that Aircraft Specialites made of a cutaway starter adaptor with a Iskra and a common old-style Presolite motor. http://www.youtube.com/watch?v=3DPsNMz1-IWLA =20 Basically it just shows the sliding worm gear not retracting all the way and it shows the end of the worm gear shaft no relaxing. =20 The mechanism needs to be able to unwind a bit so to relax the clutch spring after engagement. =20 Kent Felkins TUlsa =20 ----- Original Message -----=20 From: Peter Hebert =20 To: lml@lancaironline.net=20 Sent: Tuesday, March 09, 2010 11:40 AM Subject: [LML] Re: starter drive problem IO550 =20 I just put a skytec starter to replace my iscra. Replaced one drive under warranty. The skytec has a solenoid which disengages the motor from the starter. The permanent magnet starters can create drag on the starter spring which results in wear. Cirrus does not allow Continental to ship them motors with the Iscra. Peter Hebert=20 =20 -----Original Message----- From: Douglas Brunner To: lml@lancaironline.net Sent: Tue, Mar 9, 2010 10:41 am Subject: [LML] Re: starter drive problem IO550 Also had to replace my starter drive on an IO-550 in a Legacy. Unfortunately, engine mounts had to be loosened and engine swung forward. =20 Apparently, different starters vary in their tendency to kill the starter drive adapter. My understanding is that the Iskra is the worst and that the old Prestolite is the best. Allen Barrett can probably give you further information. =20 D. Brunner =09 ________________________________ From: "cfi@instructor.net " < cfi@instructor.net > To: lml@lancaironline.net =20 Sent: Tue, March 9, 2010 6:35:01 AM Subject: [LML] starter drive problem TSIO550 =09 I know there was some discussion a while back about starter drive issues, but I can't find any specifics. I've developed a problem where the starter slips and won't engage, so I suppose I'm a victim of the TCM problem at 400hr TT. Is is possible to remove the adapter without moving the engine forward? I have an A/C pump on the back of the engine too, so it's very packed behind the engine. I'm not even sure what to remove. Anyone have some ideas to make this as easy as possible? Any photos? =20 Thanks =09 Ron=20
=20 =09 No virus found in this incoming message. Checked by AVG - www.avg.com=20 Version: 9.0.733 / Virus Database: 271.1.1/2732 - Release Date: 03/09/10 01:33:00 ------_=_NextPart_002_01CABFD8.A7F720F4 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

My understanding is that there is = actually a TCM spec somewhere that indicates how much torque it takes to turn the starter motor when it is not running.  I heard that Iskra is way = out side that spec and so it can’t turn backwards with the torque of the spring = alone.  The old Prestolites were designed to this = spec.

 

Kevin

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Richard T. = Schaefer
Sent: March 09, 2010 = 15:22
To: = lml@lancaironline.net
Subject: [LML] Re: = starter drive problem IO550

 

What do I need to focus on ? =

1)       = How fast the starter gear returns to original position = ?

2)       = Or the fact that it is still moving after being disengaged ? =

 

 

 

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Kent
Sent: Tuesday, March 09, = 2010 2:34 PM
To: = lml@lancaironline.net
Subject: [LML] Re: = starter drive problem IO550

 

Here is a link to a video that Aircraft Specialites = made of a cutaway starter adaptor with a Iskra and a common old-style Presolite = motor.

 

Basically it just shows the sliding worm gear not = retracting all the way and it shows the end of the worm gear shaft no = relaxing.

 

The mechanism needs to be able to unwind a bit so to relax  the clutch spring after = engagement.

 

Kent Felkins

TUlsa

 

----- Original Message ----- =

From: Peter Hebert =

Sent: = Tuesday, March 09, 2010 11:40 AM

Subject: [LML] = Re: starter drive problem IO550

 

I just put a skytec starter to replace my iscra.  Replaced one drive = under warranty.  The skytec has a solenoid which disengages the motor = from the starter. The permanent magnet starters can create drag on the starter = spring which results in wear.  Cirrus does not allow Continental to ship = them motors with the Iscra.

Peter Hebert =

 

-----Original Message-----
From: Douglas Brunner <douglasbrunner@earthlink.net>
To: lml@lancaironline.net
Sent: Tue, Mar 9, 2010 10:41 am
Subject: [LML] Re: starter drive problem = IO550

Also had to = replace my starter drive on an IO-550 in a Legacy.  Unfortunately, engine = mounts had to be loosened and engine swung forward.

 

=

Apparently, different starters vary in their tendency to kill the starter drive adapter.  My understanding is that the Iskra is the worst and that = the old Prestolite is the best.  Allen Barrett can probably give you = further information.

 

=

D. = Brunner

From: "cfi@instructor.net" <cfi@instructor.net>
To: lml@lancaironline.net
Sent: Tue, March 9, 2010 = 6:35:01 AM
Subject: [LML] starter = drive problem TSIO550

I know there was some discussion a while back about starter drive = issues, but I can't find any specifics.  I've developed a problem where the = starter slips and won't engage, so I suppose I'm a victim of the TCM problem at 400hr TT.  Is is possible to remove the adapter without moving the engine forward?  I have an A/C pump on the back of the engine too, so it's = very packed behind the engine.  I'm not even sure what to remove.  = Anyone have some ideas to make this as easy as possible?   Any = photos? 
Thanks

Ron

<hr size=3D2 width=3D"100%" align=3Dcenter> =


No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.733 / Virus Database: 271.1.1/2732 - Release Date: 03/09/10 01:33:00

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