Mailing List flyrotary@lancaironline.net Message #2596
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: today's engine results- still no joy
Date: Mon, 18 Aug 2003 14:01:55 -0500
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message

   Not wiring "errors", but possible impedance problems. Ohm out the injector wiring from the EC2 connector all the way to the injector plug (also the return path).  A high-resistance connection along the path or a burn mark on a switch contact could dramatically change the performance of the circuit.

Dale

 
Nice Try :-)   Actually, I did all that weeks ago. 
 
In talking to Tracy, it sounds like the injector mismatch that I have is substantial.  The mixture knob provides a 100% change in mixture from one extreme to the other, and I'm having to turn it 180 degrees to change from primaries to secondaries.  If that's 75%, or even 50% change in mixture, my MSD injectors can't be anywhere close to the 50 lb/hr they claim to be.  I'm going to try to get out this afternoon, and swap the primary and secondary wiring again, and verify the huge mixture change required to go from primary to secondary.  If this is now opposite of what it was yesterday, I'm going to have to get these MSD injectors tested, and see what they really are. 
 
Cheers,
Rusty
 




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