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Thanks Bob, I didn't get that part. (or it was a different
message?) The part I got was asking for a diode fix to prevent the problem
(message didn't specify what that was). Paul then suggested a diode in
series with the driver which would in-fact prevent the injector current from
powering the EC2 but it also prevented the injector from firing as well.
A triple pole double throw, center off switch might accomplish
the single switch goal if wired correctly. I have no problem with that but
don't see how it is related to the 'diode fix'.
Tracy
----- Original Message -----
Sent: Tuesday, May 01, 2007 3:08 PM
Subject: [FlyRotary] Re: Throttle body
size/ other "Paul" issues
To put the quote in context, here is the rest of
it.
"...
His recommended solution is to put on-off switches for both
the primary
and secondary injector pairs. His logic is this allows
one to disable
an injector pair if it is misbehaving, and at the same time
prevent the
backward EC-2 power phenomenon mentioned above. I am not
a fan of this
solution - I wired my system with a single
switch
primary-both-secondary. I figure if I have injector problems,
I don't
want to be flipping a pair of switches trying to find the
right
setting. There is comfort in knowing I need only flip a single
switch
either up or down to disable which ever pair is not
working.
...
Mark"
So it's really just an issue of his preference
for having one switch
instead of two. Apparently he doesn't have a
master switch for the bus
either or didn't turn it off. Otherwise,
the only time the back power
causes a problem is one of the reset modes for
the EC2.
Bob W.
On Tue, 1 May 2007 14:34:35
-0400
"Ed Anderson" <eanderson@carolina.rr.com>
wrote:
> Interesting choice of words used - "I'm not a fan of
this (Tracy's)
> solution ...".
>
> It raises the
question in my mind that with Tracy (the designer) saying
> there
is no problem, then this search for a "solution" is for What?
> problem? One in the mind of someone with lack of understanding of
what this
> really means? or does someone have a real reason for
why this "sneak
> circuit) should be considered a problem? Or is this
"concern" being perhaps
> artificially generated by someone who
has anomisity toward Tracy and wishes
> to raise unjustified concern
about RWS products. Ah, the possibilities are
> too numerous for
me to hazard a guess.
>
> The "sneak" circuit is no problem if
you wire the EC2 per Tracy's
> guidelines - in my case, I must admit I
did wire it a bit different - but,
> that resulted with my EC2 now
having two independent power sources - one
> through the injectors and
one through the EC2 normal power terminal.
>
> Not that I
would ever normally attempt to power the EC2 only through the
>
injectors - but,it is sort of nice in the unlikely event the line
providing
> power to the EC2 terminals 33 & 34 should loose power.
Power through the
> sneak circuit through the injectors would keep the
engine running. So - see
> its not a problem, its a
benefit.{:>)
>
> Too much, gotta get to work
>
>
Ed
>
>
> ...
> ----- Original Message -----
> From: "Blake Lewis" <blake.lewis@gmail.com>
> To:
"Rotary motors in aircraft" <flyrotary@lancaironline.net>
>
Sent: Tuesday, May 01, 2007 1:57 PM
> Subject: [FlyRotary] Re: Throttle
body size/ other "Paul" issues
>
>
> > Tracy,
>
> In his original message he said " I'm not a fan of this
(Tracy's)
> > solution". I guess he went looking for other
solutions....
> > Blake
> >
> > On 5/1/07, Tracy
Crook <lors01@msn.com> wrote:
>
>>
> >> Different subject:
> >>
> >>
I'm getting relayed messages from Paul's site giving "fixes" for the
>
>> injector 'sneak' path that powers the EC2 when power is applied to
the
> >> injectors. I don't know who raised the question but
To whom it may
> >> concern,
> >> the suggested "fix"
is completely wrong. Unless you wire the injectors
> >>
directly to the battery with no switch of any kind (the instructions
>
>> explicitly forbid this) there is nothing to be fixed.
>
>>
> >> Not that this advice is needed on this list, but
wouldn't it make sense
> >> to
> >> ask the guy that
designed the thing?
> >>
> >> Tracy
>
>
> > --
> > Homepage: http://www.flyrotary.com/
> >
Archive and UnSub:
> > http://mail.lancaironline.net:81/lists/flyrotary/List.html
>
>
> --
> Homepage: http://www.flyrotary.com/
> Archive
and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html
--
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3.8 Hours
Total Time and holding
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