REFLECTOR: fuel flow irregularly

[Richard Ring]

Today was a bad weather day here so I moved the flow unit & Holly regulater between engine pump & carb.

I have the new vane pump, every thing else is ok.

When I turned on the boost pump to check my plumbing I found the line from the firewall to the carb [suction line] leaks.
This would explain a lot of things.
It doesn't leak when setting and could be causing a lot of problems.
If this is not it, when I get to fly I'll be back.

Thanks for the input, it help me find the problem.
Richard
  ----- Original Message ----- 
  From: Al Gietzen 
  To: 'Velocity Aircraft Owners and Builders list' 
  Sent: Monday, December 12, 2005 10:43 PM
  Subject: RE: REFLECTOR: fuel flow irregularly


  Subject: REFLECTOR: fuel flow irregularly



  After 50 hrs. of checking things out and correcting almost every problem I have read about on the reflector, I now have one more.



  This is SRG Franklin/Ivo,

  After approx. 20/30 min. at 2300/23lb I get fuel flow that was 10.5 gph going from 9 to 14.8 and every time you look its diffrent. I turn back for the airport and the engine will quit completely and start again before I can hit the boost pump. I throttle back and land.



  I have 3/8 fuel lines and 1/2 vent lines and they are clean and worked great for 50 hrs. what do you think?



  I have no idea about your fuel plumbing after the sump tank, but it could be vapor forming in the line upstream from the fuel flow sender, because of restriction/hot fuel line.  Does the problem go away if you turn on the boost pump?



  Al



------------------------------------------------------------------------------


  _______________________________________________
  To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector

  Visit the gallery!  www.tvbf.org/gallery
  user:pw = tvbf:jamaicangoose
  Check new archives: www.tvbf.org/pipermail
  Check old archives: http://www.tvbf.org/archives/velocity/maillist.html
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.tvbf.org/mailman/private/reflector/attachments/20051213/91f73797/attachment.htm