I pulled all 4 injectors on my Farmall 504's D188 and did not pull the pre-cups. Also, I did not pull the copper sealing washers per my diesel mechanic/injector man. He said as long as I did not "disturb" them then they were fine. I cleaned them and torqued them down. It runs like a new tractor.
Pictures of my 504 injector teardown...
I'm sure ya can tell which one was leaking. Also the injector man said since the ends of the injectors had a clean line around them that the copper washers were not leaking by. I replaced the injectors in the same holes, in the same orientation to minimize leaks.
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Today's Featured Article - A City Guy's First Tractor - by Fred Hambrecht. After living in apartments in Atlanta for more years than I care to remember, the wife and I decided to move to the country. Humming "Green Acres is the place for me..." we purchased a 29 acre tract about 60 miles south of Atlanta. Next came the house, I could talk about that ordeal for another two weeks... But, I want to talk about my tractor! We didn't even own a lawnmower, and all of a sudden we had enough grass to feed all the starving children of the bovine world. Naturally, I talked
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