</font><font color="blue" class="small">( The only two, other than the Ford SOS models, that come to mind are the John Deere 1010 and 2010. Don't confuse these with the 1020 and 2020, which are great tractors.
Good Luck,
Russ )</font>
The 1010 and 2010 Deere's are a bit misunderstood.
When Deere was researching the "New Generation" tractors through the late 1950's, 90% of the engineering went to the 4010 and then the 3010. Even the "future" 5010 was stealing a lot of attention. The 1010 and 2010 were merely a re-hash of the 430 and 530, only with a 4 cylinder engine. The 1010 shared a LOT of parts with the 430.
The 1010 wasn't that bad of a tractor. Slightly under-powered, and slightly behind the times compared to the "space-aged" designs of the 3010/4010. But all in all, still not a bad LITTLE tractor.
The 2010 was a decent tractor EXCEPT for the engine. (That's a BIG "except".) The design of the 4 cylinder engine used on the 2010 was a revolutionary idea. It employed what was known as a "Siamese cylider bore" All 4 cylinders, and the deck surface were cast in one piece. It then was set in the block. It had inherent cooling problems, tended to shift with use (heat) causing the rings and pistons to loose their fit, and a host of other problems. The gas version wasn't so bad. The diesels were where the real problem was at. (They tended to loose their "seal" between block and head too) Later versions of the 2010 had the bugs worked out (1963/64 models) But by that time, the damage was done. The 3020/4020 models came out in late 1963, as 1964 models. The 1010 and 2010 were replaced in 1965 with the 820, 1020, 1520, and 2020. (as the new "current line" of Dubuque tractors) They were all that AND a bag of chips! The 2010 fell into obscurity.
If you find (even a diesel) 2010 still around today, you can almost bet it had the updated version of the troubled engine, or it PROBABLY wouldn't still be in service.