----- Original Message -----

From: Mike Wills

To: Rotary motors in aircraft

Sent: Monday, September 28, 2009 12:24 AM

Subject: [FlyRotary] Re: EC3 Controller

Rino,

 

 I assume you have Tracy's EM or Ed Anderson's EFISM? This sounds symptomatic of adjacent MCT locations being significantly different (which causes the surging and the indications you see on your mixture meter). This was the problem I fought for months blindly until I bought an EFISM. Now with the EFISM I can see what's loaded and ensure there are no big jumps between adjacent locations.

 

 When I changed mufflers from my original to the DNA a couple of weeks ago there were significant issues with the tuning and the engine wouldnt run clean. The staging point was particularly troublesome. Took about a half hour to tune this out when in the past (pre-EFISM) it would have taken weeks. I understand you have the auto tune feature but still think its important to know what is in the MCT in order to properly understand how it works.

 

Mike Wills

RV-4 N144MW

----- Original Message -----

From: Rino

To: Rotary motors in aircraft

Sent: Sunday, September 27, 2009 5:05 PM

Subject: [FlyRotary] Re: EC3 Controller

When this problem started I reset the map table to original, all zeros.  The engine run pretty good at that setting it makes small adjustments when I set it to auto adjust.  So the map table is set at zero at the moment.  The problem starts at a higher rpm than 3800 but I will keep an eye on this the next time I try it.

 

Thanks

Rino

----- Original Message -----

From: Bill Bradburry

To: Rotary motors in aircraft

Sent: Sunday, September 27, 2009 5:56 PM

Subject: [FlyRotary] Re: EC3 Controller

If the surge takes you above and below 3800 rpm, you could be looking at two different map table addresses for the same manifold pressure.  How do the two areas compare?  When it was running ok did you get a chance to write down the numbers in the table?

 

Bill B 

 

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From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Rino
Sent: Sunday, September 27, 2009 3:37 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: EC3 Controller

I did install the new chips to correct that problem.

 

Rino

----- Original Message -----

From: Rino

To: Rotary motors in aircraft

Sent: Sunday, September 27, 2009 4:24 PM

Subject: [FlyRotary] Re: EC3 Controller

 

Interesting!  It could be hunting for a map address.

I am investigating that for the service alert.

 

Thanks

Rino

----- Original Message -----

From: Bill Bradburry

To: Rotary motors in aircraft

Sent: Sunday, September 27, 2009 3:47 PM

Subject: [FlyRotary] Re: EC3 Controller

 

Rino,

I just noticed that there is a service alert for EC-3s shipped prior to 6-1-08.  When did you get yours? 

Surging could be caused by the EC-3 hunting for a map table address.  Are you quite certain that this is not related to the map table?

Bill B

 

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From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Rino
Sent: Sunday, September 27, 2009 11:02 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] EC3 Controller

Tracy,

 

Anyone had a problem with the Renesis crank angle sensor and had to change it.  I may have to get a new crank angle sensor, but first I want to check with you guys.

 

Tracy is probably gone to Colorado, maybe someone got this problem before.

I cannot get full power on my Renesis for takeoff on Controller A.  Seems like controller B works OK.

It is not the fuel mixture, I tried that.  Actually, when the throttle is wide open the mixture display goes up and down rapidly, from full lean to full rich and the engine surge.

 

I had a similar problem when I first installed and started the Renesis.  I had the EC2 controller then and had to get the EC3 to fix the problem.  Now it is coming back to me on the EC3, I think.  The problem then was with the crank sensor, the EC2 could not handle the sensor signal at more than about 5000 rpm.

 

I think the problem started progressively during the last few hours of flight, at first I thought it was a fuel mixture problem and was trying to ajust for that but now it is not a mixture problem.  Since the controller B has NO temp. sensor and works ok, I wonder if it has anything to do with that problem on controller A.

 

Rino Lacombe

Renesis powered Glass Goose