Bill;
I had some trouble with my manifold pressure sense lines. In my case, they picked up oil from the bottom of the intake plenum (before I put a restrictor in the turbo oil supply line) So the lines went downhill to the EC-2, causing a change in static pressure and probably dampened the response.
Dynamic pulsations in the manifold where the sense line connects could confuse the controller as well?
I installed small tubes inside my plenum to sense pressure from the center of the cavity, and may make an oil trap at the low point if the problem persists, but I also might install a restrictor, as I have a ragged idle. Or it could be me, as I have very little ground running time yet.
-----Original Message-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, May 4, 2010 11:42 am
Subject: [FlyRotary] Re: tuning issues
I am using the Iridium plugs now.
I will check the crank angle sensor, Ernest, but seems to me it is mounted on a casting on the Renesis. I could be wrong. I will have to look.
Bill B
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle
Sent: Tuesday, May 04, 2010 2:37 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: tuning issues
Bill,
I cured an intermittent mis-fire on my 20B by switching to the Iridium plugs, same as those used in the Renesis engines.
Mark S.
Bill Bradburry wrote:
I don’t think it is fuel filter related. The fuel pressure is holding steady during this time. I think it is some kind of misfire, but have no clue as to what could be causing it or how to go about diagnosing it. It is both random and intermittent and happens at various rpms. Nothing seems consistant about it happening.
What should I check?
Bill B