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[FlyRotary] Re: Just livid.....
Chris,
Even if the wire was not completely separated, it was probably only
connected by a couple of strands and as it moved (vibrated?) maybe some of the
other strands made contact from time to time causing no telling what kind of
intermittent effects. Lucky for you, it finally fell apart and you found
it.
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Chris Barber
Sent: Sunday, July 26, 2009 4:26
PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Just
livid.....
Perhaps the cause of many problems,
however, the broken wire was NOT broken two weeks ago when I rewired the ECU
and got it running so well. I just happened to notice it right off
yesterday (gee, what are the odds of me finding something on the first thing I
happened to check. Guessin' that will be the last time<g>).
I had to walk away yesterday, take a breath and
focused on some micro fill and sanding I needed to do. I at least FELT a bit
productive in spite of the demoralizing impact. I hate the idea of
sending the unit back to Tracy
again. He may have had it more than I have.
I will play with the sanding stuff tonight and get back to
the engine directly. I will be checking the MAP table first, but the NOP
is what really concerns/bothers me. I am guessing the bad ground could
have been the cause, however, the NOP did NOT go away after I found the bad
ground. I fear it may have trashed my serial circuit again. Donno,
just speculation at this point. <sigh> Trying to keep a stiff upper lip
<g>
Cpl. Christopher Barber, JD
Bellaire Police Department
CBarber@BellairePolice.com
From: Rotary motors in aircraft on behalf of Bill
Bradburry
Sent: Sun 7/26/2009 2:03 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Just
livid.....
Chris,
I would be surprised if you didn't just solve a whole passel of problems
with your EC-2. There is not telling what that cut ground connection was
doing over the past. High resistance, intermittent, open..who knows.
Fixing this should make your EC-2 much more solid.
Bill B
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
On
Behalf Of Christopher Barber
Sent: Sunday, July 26, 2009 2:08 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Just livid.....
Thanks guys. I wrote NOS...course, I meant NOP.
Hmmm, Al, I considered a second ground but was concerned that it may cause a
problem I would be unaware of. Another testament to my ignorance, but
learning and better everyday. I shall see what I can do.
I think I may have over crimped this particular connector. When I
examined
it, it seemed more cut than crimped. Donno what caused that.
I use a ratchet crimper and have not had problems before, however, most of
my previous crimps were 20 gage and not 16, so I will check the tool and my
process.
There was no strain on this particular wire. It is the very short ground
Tracy
recommend, IIRC, to be shorter than 12 inches. I relocated my ECU to
accommodate this instruction.
<sigh>
All the best,
Chris
Houston
Bob White wrote:
> I agree, also if the wire can vibrate, do something to restrain it
> better.
>
> Bob W.
>
> On Sat, 25 Jul 2009 23:12:25 -0500
> Dave <david.staten@gmail.com> wrote:
>
>
>> Sounds like some strain relief is in order.
>>
>> Al Wick wrote:
>>
>>> Oem solution for broken wire is brilliant. They use more than one
>>> wire for both ground and power. Huge improvement in reliability.
>>>
>>> -al wick
>>>
>>>
>>> I looked at the wires to the ECU and all
was secure, EXCEPT, I
>>> notice my
>>> main (16gage) ground wire broke at the
connector at the ECU.
>>> Repaired
>>> the wire.
>>>
>>>
>>>
>>>
>> --
>> Homepage: http://www.flyrotary.com/
>> Archive and UnSub:
http://mail.lancaironline.net:81/lists/flyrotary/List.html
>>
>
>
>
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