when i was a working my way through school, I got a job in a machine shop and did valve jobs, and bored blocks. every 6 months we dumped the cleaning vat and cleaned it and refilled it. to my surprise, I thought it was acid, but no, it was a very very very strong alkali or base that was mixed with water and then we fired up the gas heater under it. dropped in a dirty block and the next day you hoisted it out and rinsed off the shiney block or head. drop a carb in for about 10 minutes and it shined like new.. leave it in for 2 hours and it dissolved the thinner parts. Anyway..
hd motoroils come with a base additive to help fight acids from combustion by products. the base additives make the oil read somewhere from 11 to 13 on the base scale.. with 14 being max base, 7 is equal to water and 1 equals a super acid... so yes.. run any modern hd motoroil and it will super clean all the sludge out and off the engine and gaskets... clean out the sludge and the old gaskets that have shrunk, and cracked, and guess what happens. the same Base additives also leach out silicon from silicon based gaskets used in the 70s.. with the same results.. lots of leaks from those new silicon gaskets. Later gaskets were reformulated to fix this problem. so any modern hd motoroil and especially hd diesel motor oil will clean an engine and if the gaskets are bad, they will start to leak. 40 year old cork gaskets are no exception.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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