Mailing List flyrotary@lancaironline.net Message #37466
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: First Start... Well... Not Quite..
Date: Wed, 30 May 2007 12:35:25 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message
Chris,
 
A pin hole at that point might be meant to let any vapor escape and route back to the return line rather than the main fuel return.  A pin hole will certainly not flow back very much liquid fuel.  At idle most of the fuel would normally be returned, at WOT much less of the fuel will be returned.  However, this should not stopped the engine from firing.
 
Ed
----- Original Message -----
Sent: Wednesday, May 30, 2007 12:12 PM
Subject: [FlyRotary] Re: First Start... Well... Not Quite..

I was wondering about the fuel return too, not as to why we are not getting a start, but more in general since the Mistral intake has a pin hole at the end of the fuel rail as it enters the return hose.
 
The return line is the same size as the inlet lines.....fitted for a AN 6 connection (can't think what makes the hose)
 
Chris
 

Christopher Barber
Attorney and Counselor at Law
5110 Bissonnet, No 418
Bellaire, Texas 77401

Serving the Needs of Senior Texans

281-464-LAWS (5297)
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www.TexasAttorney.net

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Russell Duffy
Sent: Wednesday, May 30, 2007 6:47 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: First Start... Well... Not Quite..

Have you tried the injector simulation test to see if the injectors are working?   
 
How long has this feature been in the EC-2?  I was thinking this was a new addition, so most people still wouldn't have it???  I've sure never known about it until recently, and I made a note to try mine to see if this works. 
 
I would vote for fuel as well, though I'd also recheck the CAS as Ed mentioned.   If you did that much cranking, some with cold start on, you'd have to smell fuel in the exhaust if your injectors were working.   
 
As for fuel pressure, what size is your fuel return line to the tanks?  Most people get a couple psi increase with the second pump.  To get as much as you have, I'm thinking the fuel return can't flow enough to return the volume from both pumps at once.  This isn't necessarily something that has to be fixed though. 
 
Good luck,
Rusty
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