Mechanical or electric oil pressure gauge?
What is your opinion? Which do you find/hear/know to be more accurate?
Reason: my new 408 has an undetermined oil pressure.
My two electric gauges say that the pressure is ~8 PSI at warm idle (800 rpm), and ~35 PSI max at 2k rpm ish. Gauges are-new Autometer electric with matched sensor, and old Equus electric with matching sensor...both read within ~2 PSI of eachother.
My new Equus mechanical oil pressure gauge says that the ~8 PSI mark on the electric gauges is actually 19-20 PSI, and that the ~35 PSI mark on the electric gauges is actually 40 PSI. (I tested this after I removed the motor again, while using a drill to prime/drive the oil pump...actual max pressure is unknown using mechanical gauge)
These pressures are measured using a Melling M83, standard volume pump.I'm probably going to put an HV pump in it as my clearances are on the loose end of OK with new bearings. I'm also going to use my new mechanical oil pressure tester I bought to check things. And lastly I'm going to check the accuracy of the mechanical ones as best as I can via metered air pressure.
Just wondered what your opinions are.
347 turbo 95 GT & roller 95 GT (past 408w car) MOESMUSCLEMUSTANGS.WORDPRESS.COM