I installed the pressure gauge. With the mechanical pump I have 4 1/2 PSI. When I turn on the auxilary electric pump the PSI jumps to 5. This is with the engine RPMs at 1500-1600. I let the engine run for a while until the engine was hot. No electric fuel pump. I had it idleing at 600 RPM. The engine had not stalled but I checked the pressure gauge and it was reading zero. I turned on the electric fuel pump and the pressure, after about 10-15 seconds jumped up to 4 PSI. This is what happens when I am driving. When the engine starts to cut out, I turn on the pump and after a few seconds it smooths out and continues until I guess it gets too hot for the electric fuel pump to keep up. I need to see if I can figure out why the engine is running at 190 degress. I have a 180 thermostat. I think the manifold flapper thingy is stuck. I will try that first and also confirm my fluid is circulating through the engine.
I have the gauge right in front of the carburator.
Last edited by Phak1; 07/19/2025 1:11 PM. Reason: Spelling
