Hey y'all, i have a 1966 Mustang with an old 289. I just hooked up a mechanical oil gauge after replacing the oil pump drive shaft. When i first start the car, it reads just above 45 PSI. After it warms up, the pressure just drops to 0. When i rev the engine, the gauge kinda moves up a bit, but not too much.
I notice in the tube that runs to the gauge there is a lot of air, should i try to bleed this out?
Should i replace the oil pump?
Is there a better way to drop the oil pan without having to remove that fat crossmember and lower those steering linkages?
Thanks!