Wondering if Oil pressure could cause my problem? What should the pressure be? It’s currently 25-30 but that is on nearly 100 year old gage.

1933 207 stovebolt shoved into a Chevy 1/2 ton with all the 29-32 left overs. (Woody) - all original, originally old!
Courage = Being scared to death, then going to do the task anyways!