If mine, and not knowing the total capacity of the block I'd pour 5 gallons or so of diesel in, let it set for a few days and drain. Do that a time or two till the flush fluid is somewhat clean. If the engine will crank, Hotrod Lincoln has a good procedure where you add a couple quarts of diesel to the oil overfilling the crankcase, then start the engine, letting it run for twenty minutes (DON'T DRIVE IT) the crank will whip the diesel/oil around washing the block like a solvent washing machine. That'd be my final step of cleaning. Drain the dirty oil/diesel and filter add oil, new filter and drive a while before deciding if a rebuild is called for.
Good Luck
RonR
Thanks a lot Ron for the advice. Guess it won't hurt to try this first before pulling the engine. I'll keep everyone posted.
Follow Rons advise, buy three or four cheap oil filters and keep changing them between the diesel flush. The water and cleaners that may be in the pan will burn out in no time, the filter will catch the crude. If the rockers were that dirty, so is the pan, maybe worse. I've pulled dirty engines and cleaned them with a power washer with no ill effects. Pull the sheet metal, soak it down with degreaser, and wash the heck out of it. Leaf blower dry, and soak down with WD40.
Appreciate it Joe. Gonna give it a shot
