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Besides the Iskra, there is a Lamar brand, Delco, and Skytech. The Skytech has a sprague clutch which allows a small bit of backward movement so the adaptor mechanism will relax.
The best is still the old heavy Delco Energizer or what ever brand name the overhauler put on it.
Call Aircraft Specilaites and ask for Julian, 1-800-826-9252 He is up to date and he might be able to send you a copy of the test cell video
Kent Felkins
Tulsa
----- Original Message ----- From: "Kevin Stallard" <Kevin@arilabs.net>
To: <lml@lancaironline.net>
Sent: Sunday, November 30, 2008 8:20 AM
Subject: [LML] Recommended starter motors for IO-55 (was Starter adapter drive)
What other starter motors are available that do not beat up the starter
adapters as bad?
Thanks
Kevin
-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of
Kent
Sent: Saturday, November 29, 2008 5:51 PM
To: lml@lancaironline.net
Subject: [LML] Re: Subject:,Starter adapter drive
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
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