REFLECTOR: engine driven fuel pump

[Scott Derrick]

Those figure sound just like the ones I saw on my IO360 with a Weldon 
aux pump.

Scott

kent wrote:

> What fuel pressure level should be normal for an engine driven fuel pump?
>
> Do they compensate for rpm?
>
> I have an IO540 and on the ground at idle (800 rpm) my sensor says 27 
> psi. I have no idea but that seems high.
>
> When I flip on the electric Weldon fuel pump it goes up another 6 or 7 
> psi.
>
> On takeoff by the time I have the gear up and am back at 25/2500 I 
> notice the fuel pressure is 38 or more before I turn the electric fuel 
> pump off.
>
> What pressure should an engine driven fuel pump put out?
>
> Kent Murley
>
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