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To:  lml@lancaironline.net
Date: Sat, 29 Nov 2008 19:51:10 -0500
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From: "Kent" <kent@tulsaconnect.com>
References: <list-3321600@logan.com>
Subject: Re: [LML] Re: Subject:,Starter adapter drive
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hello

The TCM starter adaptors are stressed by the permanent magnet motors, like 
the Iskra brand and others.
The permanent magnet motors have high starting torque and more importantly 
do not relax after being de-enegized.   The start adaptor needs to be able 
to unwind a bit to totally disengage.

Aircraft Specialties Services found it was being blamed for warranty 
problems that they knew was not their fault.  So they made a cutaway starter 
adaptor and made video of the mechanism on a running engine.

regards

Kent Felkins
Tulsa


----- Original Message ----- 
From: "Douglas Brunner" <douglasbrunner@earthlink.net>
To: <lml@lancaironline.net>
Sent: Friday, November 28, 2008 2:25 PM
Subject: [LML] Re: Subject:,Starter adapter drive


>I also had to replace the starter drive adapter on my IO-550 (non turbo)
> after about 50 hours.  In my installation we only had to loosen the bolts
> holding the engine, not pull the engine.
>
> I have heard from a number of people about starter drive adapter 
> problems -
> I think it is fairly common.  In talking with Allen Barrett of Barrett
> Precision Engines about this problem, he said that not all starters are
> equal with respect to causing this problem.
>
> I would be interested in hearing from him what the data suggest about 
> which
> are the best and worst starters with respect to the starter drive adapter.
>
> D. Brunner
>
> ----- Original Message ----- 
> From: "Micah Froese" <micah@froese.com>
> To: <lml@lancaironline.net>
> Sent: Wednesday, November 26, 2008 7:01 PM
> Subject: [LML] Re: Subject:,Starter adapter drive
>
>> Dan,
>>
>> I had the pleasure of replacing this after the first 50 hours of flying 
>> on
>> my Legacy.  Even though the engine had to come off, it wasn't as bad as I
>> thought it would be.  We first removed the bolts holding the starter on,
>> and then removed the 4 bolts holding the engine.  With the engine 
>> swinging
>> form the hoist, we were able to remove the starter without taking the
>> engine completely off.  Actually only took an hour or so.
>>
>> Micah Froese
>> Lancair Legacy
>> Performance Engines 10-550-EXP
>> 300 hours
>>
>>
>>
>> Has anyone ever replaced a starter adapter drive on a TSIO550? (this has
>> the turbo scavenger pump on the back of it)
>>
>> I currently have the problem of the starter motor running but the prop 
>> not
>> turning past a compression stroke.  I am told that the whole assembly has
>> to come off the back of the engine and the shaft and spring replaced or
>> rebuilt.  The problem I have on the IV is the distance from the back of
>> the shaft to the firewall is only 2 or 3 inches.  I don't think this is
>> enough room to slide the assembly out.  Will the engine have to be moved
>> forward to remove this assembly?
>>
>> Any help would be greatly appreciated.
>>
>> Dan Reagan
>> Lancair IVP 570 hours
>>
>>
>>
>> --
>> For archives and unsub
>> http://mail.lancaironline.net:81/lists/lml/List.html
>>
>
>
> --
> For archives and unsub 
> http://mail.lancaironline.net:81/lists/lml/List.html


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