Mailing List flyrotary@lancaironline.net Message #6655
From: Russell Duffy <13brv3@bellsouth.net>
Subject: RE: [FlyRotary] Re: Cooling Ducts
Date: Mon, 22 Mar 2004 09:03:25 -0600
To: 'Rotary motors in aircraft' <flyrotary@lancaironline.net>
Message
For someone who hates fiberglass, it would appear that you are doing a fine job, regardless. 
 
Thanks.  I believe I've said before, that I appreciate what you can do with fiberglass, I just hate working with it.  I also have to admit that it gets easier to work with, the more I'm forced to do it.  Eventually, I can imagine learning enough tricks to make it less painful, but I would never have the patience to work with it full time. 
 
    I noticed that your throttlebody appears to terminate at a slightly downward tilt, similar to mine.  Please keep me posted regarding your experiences with the fuel drip that tends to come from the throttlebody right after engine shutdown. I now shut my fuel pump off and let the engine die from fuel exhaustion, but I still get the drips. 
 
I'll keep you posted.  So far, I've only run it once, and shut it off with the EC-2 switch.  That got me a couple drips.  I wondered if shutting off the fuel pump would work.  As the rail pressure drops, the engine quits because it can't get enough fuel to run.  However, you're still injecting fuel, albeit at a lower pressure.  I would have bet that killing the pump would decrease the drips, but not stop them completely.  The better option should be to disable the injectors, so fuel flow it stopped cleanly.  Even that may not work, especially at idle, since the engine will stop so quickly that it won't have a chance to vacuum out the intake.  Come to think of it, the Lycoming boys tend to run their engines up some prior to cutting the mixture, so maybe that would help to clear out the pipes.  
 
Also, thanks for the note about the TB studs.  My brief run was with the studs loose, so I guess I'm lucky they didn't get free.  I should have flanges bolted on for the next run.  
 
Cheers,
Rusty  
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