Mailing List flyrotary@lancaironline.net Message #48193
From: Mark Steitle <msteitle@gmail.com>
Subject: Re: [FlyRotary] Re: Progress report from Houston
Date: Thu, 17 Sep 2009 19:46:12 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Chris,
 
I know that each engine/installation is unique, I usually don't have to prime even once when cold (summertime), and never when hot (doesn't need the extra help igniting the fuel mixture).  However, I always go rich on the mixture knob (full rich for a cold start, 2-3 o'clock position for a warm start).  It always starts within a few seconds of cranking. I would try priming less when hot and see what happens.  Also, I would check your idle mixture settings.  If it takes that much priming, it sounds like it may tuned be a bit on the lean side.  
My take on your static rpm question is that OAT may be the cause of the variations.  Sounds like you've got enough to get off the ground.  Have you done any fast taxi runs?  You've got plenty of runway. 
 
Mark
On Thu, Sep 17, 2009 at 7:15 PM, Chris Barber <cbarber@bellairepolice.com> wrote:

Oh, also, I am having a bit of trouble to get it to start when hot.  Seems to crank right up when cold, but I seem to have to hold my tounge just right to fire it up when hot.  I think it MAY have to do with the different mixture and priming needed when hot.  It seems to like about six to ten prime shots when cold, but may like more when hot....not sure yet. Annoying though.....especially when trying to show off to the curious....who heard the engine a few minutes ealier <g>

 

Thanks.

 

All the best,

 

Chris


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