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ianwilson2
Joined: 06 Jan 2008
Posts: 33
Location: France
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 Posted: Wed Jan 21, 2009 2:15 am Post subject: Starter Motor Earth Cable |
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Has anyone seem/implemented Jabiru's JSL 005-1 about adding an earth cable from the back of the starter body? I don't really want to add another heavyish cable to the front end if it's not going to make much difference, so I'd welocme the groups experience as to whether this is a change that makes any difference!
Many thanks.
Ian Wilson
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Lynn Matteson
Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan
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| Posted: Wed Jan 21, 2009 3:52 am Post subject: Starter Motor Earth Cable |
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I did it...I didn't NEED to do it, but I did it anyway, just to be
safe. I used 2 braided and tinned copper straps about 1/2" wide,
attached terminals on both ends, and installed. I'd never had a
starting problem before but just wanted to be sure...and I was
running out of things to fiddle with. : )
Lynn Matteson
Kitfox IV Speedster, taildragger
Jabiru 2200, #2062, 600.2 hrs
Sensenich 62x46
Electroair direct-fire ignition system
New skis done and flying
On Jan 21, 2009, at 5:15 AM, ianwilson2 wrote:
| Quote: |
<ianwilson2(at)hotmail.com>
Has anyone seem/implemented Jabiru's JSL 005-1 about adding an
earth cable from the back of the starter body? I don't really want
to add another heavyish cable to the front end if it's not going to
make much difference, so I'd welocme the groups experience as to
whether this is a change that makes any difference!
Many thanks.
Ian Wilson
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 25965#225965
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_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM |
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jcrowder(at)lpbroadband.n
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| Posted: Wed Jan 21, 2009 11:26 am Post subject: Starter Motor Earth Cable |
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I am currently Installing a 3300 on my Kitfox 5. I just installed the
engine ground cable at that point on the starter instead of on the engine
block. My thinking is that that is where the greatest current demand
occurs. I guess I will see how that works out.
Jim Crowder
[quote] --
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Peter H
Joined: 20 Mar 2007
Posts: 197
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| Posted: Wed Jan 21, 2009 4:11 pm Post subject: Starter Motor Earth Cable |
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Ian,
I reported 18 months ago that the two assembly bolts which clamp and retain
the starter were getting hot. The earth return is by means of these two
bolts but they are set in Loctite and there is a voltage drop because of
high resistance.
I fitted a separate earth strap and got better performancxe from the
starter.
Peter
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ianwilson2
Joined: 06 Jan 2008
Posts: 33
Location: France
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| Posted: Thu Jan 22, 2009 1:34 am Post subject: Re: Starter Motor Earth Cable |
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Thanks Lynn, Jim and Peter for the information. Lynn, I can't see that you will ever run out of things to fiddle with 
OK, so given that I need to add a strap to the starter, how do I get the bolts off without shearing them? I'm in contact with another builder of the same plane as me and he's just done this on his 2200. He tried heating the bolts to loosen the Loctite, but the bolts still sheared. Now, not only does he have to find some new bolts, he also has to take the casting to a specialist shop for them to remove the broken bolts.
Any ideas?
Again, many thanks for your responses.
Ian
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dhonabach
Joined: 19 Jan 2009
Posts: 13
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| Posted: Thu Jan 22, 2009 8:16 am Post subject: Starter Motor Earth Cable |
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Maybe I just got lucky, but in moving the ground wire for the starter, I
didn't have any problems with the bolt and shearing, etc.
I'd also recommend moving the ground wire or adding the strap for the
starter. I was actually having issues with mine and moving the ground
wire resolved the issue.
Don
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