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What fuel pressure should I see for electric or engine fuel

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Dave(at)AirCraftersLLC.co
Guest

Posted: Fri May 19, 2006 9:22 am Post subject: What fuel pressure should I see for electric or engine fuel

Ray,



Metered fuel pressure downstream of the servo is around 5 psi with little if

any change when the electric pump comes on.



If you measure fuel pressure just downstream of the mechanical pump, before

the servo, you should be able to see the electric pump boost the pressure to

30-40 psi.  That's how you know it's working.  The mechanical pump alone

should keep it around 20-30 psi.  6 psi is about right for a carbureted

engine.  Carbureted engines use a lower pressure mechanical fuel pump

compared to injected engines.



Dave Saylor

AirCrafters LLC

831-722-9141

 



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