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Fuel pressure sender

swjohnsey

Well Known Member
My old RV-4 has a three way gage, fuel pressure, oil pressure, oil temperature, out of a P-38, all mechanical. The fuel pressure went out so I am in the process of replacing it with a UGA electric 3-way gage. The question is where to place the sender. Current system is two wing tanks to fuel selector valve to fuel filter to gasolator to mechanical fuel pump to fuel flow tranducer to fuel injection. There is a union between the mechanical fuel pump and gasolator and also a junction between the fuel pump and fuel flow tranducer.

I still haven't found where the mechanical fuel pressure line takes off.
 
Normally ‘T’d’ off the mechanical fuel pump outlet with a restrictor fitting.
Can be purchased from Vans.
 
tranducer.

I still haven't found where the mechanical fuel pressure line takes off.

If you have FI, there is a pressure take off port on the servo that some use. That is where I take it off. In the certified world many use a tee at the carb, so wouldn't be surprised to see it there. Can't you just follow the copper line from the gauge?

Larry
 
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