Boy, those were the days. I used to take room and board from a gentleman who sold cars for fifty years, and he told me some of those things, especially the sludge. Then again, I've serviced (and even replaced) engines where the owner refused to change the oil, used Pennsy grade oils, or just plain abused their cars, and the oil pan would also have sludgy material in the bottom, carbonized oil in the top galleries of the cylinder heads, or just plain broken parts.
methyl alcoholMnnnn good! My parents always went to the neighborhood Shell station so I did too. Used Shell motor oil. Couldn't figure out why my engines had root beer foam in them. Switched oil and the foam disappeared as did the tic tic tic.
well engine crapped out, there was a crack in the intake manifold that spead to the temp sending unit eventually and popped it out and is blowing water all out so point is moot, engine has obviously been running hot for awhile, I know this because thinking back too when I got it, all grommets on engine were gummy, but all close were ok, original temp sender was not working properly, and I had to replace a couple pigtails, plus its probably why a hose that didn't look very bad blew a large split in the side, I don't trust any part of the engine, I am going to save up and have the entire assembly replaced by the shop, they quoted around 5 grand, even though that's high, they have been my go to guys for everything for 20 years and do excellent work, plus ill get a warranty with the motor, and ill get a new intake in the process obviously since motors rarely come without them. the difference between replacing intake and gasket and just gasket was only about 200 dollars, they did not diagnose the car I asked them for the quote specifically, and this will ultimate solve all engine related issues I have been talking about on here. the body is so excellent im not letting this wagon go since ill never find one this clean, paint looks new, carpet clean, dash still soft, headliner is not falling but is not plush anymore and visors have loose fabric, this is the only cosmetic issue at all besides a couple bent spots on the very underside about baseball sized.
Why not just get a junk yard intake, replace it and new gaskets, see how it runs. $5000 is a lot of money if the original engine runs decent.