Re: Fuel Pressure Mystery
Yes, disconnect the inlet hose from the tank and install a vacuum gauge on the pump inlet, crank up the the engine with a carb full of fuel and see how much vacuum the pump creates.
You can 'T' the gauge with the inlet hose if you like after doing the above test and watch the gauge. There should be no vacuum created if pump is primed and no faults with the fuel supply.
Blowing air into the tank filler tube, no more than 10-15 PSI, short squirts with the air nozzle, pressurizes the tank alittle and forces fuel out the tank through the fuel line and to the pump inlet, if the inlet hose is disconnected at the pump. If there is a good flow, all is well from the inlet hose back to the tank.
Does the inlet hose at the tank have a kink in it?
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CUBS - 2016 World Series Champions - maybe this year, 2019 ...