Compression Check low oil pressure Now What?

That's why if it's as bad as you let on you remove the valve covers and even the intake manifold and remove the sludge by hand. Then put everything back together and flush the rest. But for a small amount of sludge buildup, there's no harm in flushing one. Disagree all you want, I've done it a lot and successfully each time.
If you start disturbing all that sludge, It's gonna bite you in the *** eventually. You've just gotten lucky. We can debate all day but I've seen it first hand over & over again. We had 3 Techs in our dealership. Me Butch & another guy. Me & butch would never disturb the sludge and just carefully swapped the Pump & Screen. 100% success rate. The other guy insisted on scraping & flushing. he had a 50% success rate at best. Butch Grabinsky :prayer:is by far the best Tech I've ever known and he'll back me 100% on this. Scraping sludge = Blown engine:glasses7: