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From: Bulent Aliev <atlasyts@bellsouth.net>
Subject: Re: [FlyRotary] Re: Frustration
Date: Fri, 18 May 2007 22:00:26 -0400
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>

Thanks for the update and encouragement. I'll do some more  
investigating tomorrow. The idea of orginized trouble and solution  
table is a very good one.
Buly

On May 18, 2007, at 9:02 PM, Mark Steitle wrote:

> Buly,
> Have you checked to see that the EC-2 is grounded?  A quick check  
> might be to run a jumper from the ground stud on the EC-2 to a good  
> battery ground.  Other than that, it sounds like the EC-2 might be  
> the problem.  But I'll let Tracy make that call.
>
> BTW, I spent most of the day working on tuning my 20B.  I have been  
> working with (AKA - pestering) Tracy on trying to figure out why my  
> 20B was cutting out at 2800 rpm.  It ran really great up to that  
> point.  First thing we discovered was that I had the Renesis CAS  
> wired backwards (yes, only two wires and I managed to wire them  
> backwards).  Changing that improved things by 1000 rpm.  Next, we  
> tried changing the spacing between the sensor and the trigger  
> wheel.  Narrower or wider both made things worse.   Finally, Tracy  
> suggested adding a resistor to the "B" lead of the CAS.  I started  
> with 1300 ohms.  That brought the rpm up about 400 rpm more.  It  
> was now running fine up to 4200 rpm before it started misfiring.   
> Today, I used a 10K potentiometer wired into the CAS circuit B  
> lead.  As I increased the resistance, the max RPM increased, until  
> I reached a limit to where it didn't help any longer.  I have now  
> replaced the potentiometer with a fixed resistor.
>
> At that point I noticed that the mixture would go way lean at the  
> same time the misfiring began.  So, I richened the MAP table in  
> that range a bit, and sure enough, more RPM.  So, now I'm in a  
> tuning mode rather than a trouble-shooting mode.  It still isn't  
> perfect, but I have been able to hit in excess of 6000 rpm static.   
> There are still some spots where it needs a bit of adjustment of  
> the mixture knob to make it run properly.  For some reason, I can't  
> seem to get the auto-tune feature to work.  More tuning tomorrow.
>
> The point of the story is to stick with it, you'll figure it out.   
> And keep Tracy's number close at hand.  ;-)
>
> Mark S.
>
>
> On 5/18/07, Bulent Aliev <atlasyts@bellsouth.net> wrote: I don't  
> think so George. All the injectors click when ground is
> introduced at the pins. They just go dead when connected to the EC2
> system?
> Buly
>
> On May 18, 2007, at 6:21 AM, George Graham wrote:
>
> > How about water in the fuel?
> >
> >
> > George Graham
> > Sarasota Florida
> > Mazda RX7 EZ
> >
> > Don't be flakey. Get Yahoo! Mail for Mobile and
> > always stay connected to friends.
>
>
> --
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