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fuel valve

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recapen(at)earthlink.net
Guest

Posted: Mon Jul 30, 2012 7:59 am Post subject: fuel valve

I think you did not wait long enough....and the purge valve is right up there next to the injectors for an immediate cut-off.  Residual fuel could still be pressurised by the mechanical pump and keep the engine running for a couple of minutes....mine ran for a while with the selector in the off position....while I was still creating my startup checklists...

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bifft(at)xmission.com
Guest

Posted: Mon Jul 30, 2012 8:07 am Post subject: fuel valve

On Mon, 30 Jul 2012, thomas sargent wrote:



 	  Quote: 	
		   In doing my annual inspection, when I was running the engine to warm up the

 oil for an oil change, I tried to stop the engine by turning the fuel

 selector valve to OFF.  It continued running without slowing down for what

 seemed like a long time (probably 1/2 to 1 minute) until I got tired of

 waiting and turned off the purge valve (AFP fuel injection) which stopped

 it immediately.  The fuel flow gauge showed a steady 1.4 - 1.5 gph.



 Did I just not wait long enough or is the fuel valve worn out?  It's the

 valve that Van supplied with the kit and otherwise shows no problems,

 doesn't feel worn, etc.




	


  The engine can run for quite a while on the fuel in the lines and the

gasocolator, especially at idle.  I once meant to switch tanks and

switched the fuel off in flight, it took about 30 seconds before the

engine stopped.  Did start right back up again when I switched the fuel

back on.

  Brian Huffaker, DSWL (bifft(at)xmission.com)

  RV-8A 80091  Planning panel

  1/4 Starduster II N23UT down for engine overhaul

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