We bought a diesel 686 new back in probably 1980 or right around there. It had the american diesel in it there were some with german diesels in them. We never had any problems that I can remember except ours would jump out of 4th gear under a heavy load, probably a broken tooth on the gear I would guess. It was a strong runner and with 16.9-38 or 18.4-38 they would handle quite a load if you needed to. Economical and reliable. Good luck.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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