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 - Chores - by Frank Young. The ceaseless passing of time! It is at once our friend and our enemy. It measures our progress and it makes us old. Like most features of our life, few things are all good or all bad, and most such judgments depend on our own perspective or viewpoint. In our particular hobby, we enjoy the nostalgic return to the days of our youth as we recreate many of the scenes that took place on the family farm that served as the stage for the first few acts of the play that is our live
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