Mailing List flyrotary@lancaironline.net Message #6121
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: EDDIE manifold more photos
Date: Mon, 1 Mar 2004 19:46:41 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
Actually, Rusty, you may not have quite the problem I had on cold morning starts.  Since I'm "plugs up" the intake port is on the bottom of the engine, with your "normal" orientation any fuel should run down the intake and into the chamber, so the lack of good vaporization on cold mornings probably wont' be as nearly as bad.  There! feel better now? 
 
Thanks, but not really.  In my case (and Paul Conner's), the fuel has to go up a 45 degree incline for about 6 inches, then horz for about a 12 inches, then it gets to proceed downhill.  
 
Lycomings have that ridiculous uphill fuel system, and mine was impossible to start on really cold days, until I added a primer.  The only way I could start it was to heat up the carb and runners to get some atomization.   
 
I do have some concerns about having the injectors so far away, but I hadn't actually thought of the cold start problems.  If the current system works well, except for cold starts, I may install some sort of primer in the stock primary injector holes.  If I have other problems with having all 4 injectors on the cold side of the engine, I'll see about putting the primaries back in their normal location.  This could make for an interesting fuel rail. 
 
Rusty (only two more exhaust bends to fit)
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