Clean it, clean it, clean it. And when you thought you cleaned it well, clean it some more. Especially all the oil passages, scrub them, then blow them out. Use clean paper towels when flushing the junk out until you get no dirt on them anymore. I run brake Kleen and mineral spirits thru the passageways with clean paper towels on the collection end to see how much junk I'm getting. That's an awful lot of "coffee grinds" by the front main bearing. Just keep blowing it out and scrubbing with the gun brushes until all of that **** is gone. Can never be too clean. Paper towels are cheap, keep swapping each dirty one out for a clean paper towel every time you flush cleaning solvents thru so you can catch and see what your getting out of the passageways.
