For some background; on Saturday I removed some sludge from my rocker assembly and head with a vacuum and a toothbrush. https://honda-tech.com/forums/honda-accord-1990-2002-2/oil-leak-near-timing-belt-cover-2815920/

Tonight the car is running very hot and the oil light started flickering. Oil level is between the marks and coolant level is normal. I'm hoping its a clogged screen and not something worse, but it doesn't look good. Am I right in thinking that because my temp went nearly to red that I'm pretty much screwed? I'm going to pull the pan, clean the screen and run some Seafoam, but I think I just wasted a weekend working on a lost cause or, worse yet, killed it with kindness.

Also I'll pick up an oil pressure gauge and get an actual reading.

 

Could also be worn bearings causing your low oil reading. It could also be the sending unit - get the gauge and check... you are on the right track.

It should not be overheating regardless of the oil pressure. Figure this out first.

I have had my 92 go red twice (hoses) and the engine was fine - no oil consumption afterward, good compression, etc. Don't give up yet... it might just be a bad thermostat heating your oil too thin.