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From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-2069329@logan.com>
Subject: Re: [FlyRotary] EC2 saga
Date: Sun, 27 May 2007 08:13:58 -0400
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Buly, I am not surprised to hear the fuel Map data is gone from your EM2. 
If you are having connectivity problems with between it and the EC2 then it 
has no way to refresh its Display data from the EC2.  But, this does not 
necessarily means there is something wrong with the EC2.

It really sounds like you have a ground  problem between your EC2 and 
aircraft power ground.  I suggested taking a volt meter and connecting it 
between the ground terminal on the EC2 and your aircraft negative voltage 
terminal (yes, right at the battery). Turn on the EC2.   If the volt meter 
shows any voltage then your ground is not what it should be.  Another 
individual suggested simply taking a heavy (18 awg) wire and running it from 
your EC2 grounding post and the negative terminal of the battery.

If there is a poor ground on the EC2 that would explain why you can get a 
click when you manually ground the injectors, but not with the EC2 
connected, because the EC2 would be unable to "pull" sufficient current 
through this poor ground - the voltage drop across a poor ground can amount 
to several volts - which would mean that voltage would not be available 
across the injectors.

But, you have not sufficient suggestions to last you the next week end as 
well.  Hope you get it fixed soon, we want to see you flying again.

Ed


----- Original Message ----- 
From: "Bulent Aliev" <atlasyts@bellsouth.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Saturday, May 26, 2007 10:13 PM
Subject: [FlyRotary] EC2 saga


> Today I spent couple of hours trying to guess what turned my flying 
> airplane into a hangar Queen? Still could not find a thing wrong in  the 
> wiring. Except my mixture display bars are totally gone from the  EM. 
> Resetting them to factory setting did not do a thing? Tried  manually 
> changing them, no reaction? Next thing I'll check the  injector output 
> from the EC with the oscilloscope, but have no big  hopes.
> Buly
>
>
>
>
>
> --
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