Date: Mon, 21 May 2007 10:29:01 -0400
From: Finn Lassen <finn.lassen@verizon.net>
Subject: Re: [FlyRotary] Re: Frustration. The seriesl....
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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What gauge wire?

How did you check the resistance of the wire? Several hundred feet of it 
or with a real low-ohm meter?
Continuity doesn't count here. A typical muti-meter passes only a very 
few milli-amps through the circuit when ohming it.
I imagine that the injector peak current is several amps, maybe even 
more than 10 amps.

Two aspects to this: the +12 Volt wire(s) to the injectors could be 
unshielded and a nice big fat one. The wire from the other side on the 
injector to the EC-2 is probably best shielded, but it better be thick 
enough to carry the current without significant voltage drop. Especially 
important in your airplane where the prop is on the wrong end :). I 
guess you easily have more than 10 feet of wore from the EC-2 to the 
injectors?

Finn

Bulent Aliev wrote:
> Al,
> I have two EC2's. Bob White sent me his to test against mine. The NOP 
> is flashing on both and A/B processors too.
> I have power to pins 33 and 34.
> Spark plug / ignition test on Mode 8 works fine.
> 2 Serial leads have connectivity between EC and EM.
> Since I have a second EC to swap, the EC is not a suspect.
> During the Tracy's update I replaced the single wires to the injectors 
> with two pairs of shielded 18 gauge I got at S&F.
> I started suspecting the wire, since it has one blue and one white 
> wire inside. The number on the wire is: 2112/202SJ-18 1F2Y2.
> I thought it may be a some kind of resistor wire? But we tested 
> resistance, and checked fine?
> Thanks Al. Looks like I need dumb luck to get out of this one :)
> Buly
>