I'm the guy other folks bring their head scratchers to, and it usually doesn't take too long to find something logical that got overlooked. A "fresh set of eyes" can often do that. But a couple years ago this had me stumped for a few days:
Yes, I got that one figured out, and it wasn't 'illogical' . Turns out one of the choke plate screws had fatigued and broke and the other fell out, or maybe it was vise-versa. Found the intact screw still in the carb, but not the head of the other (hmmm...). With the plate floating around just north of the venturi, it would sometimes choke it to death, and other times allow it to run just a little rich. Ended up ordering a replacement carb from YT, and that solved a couple "Mechanopause" related issues. :D
At the moment, I'm puzzling a neighbors '58 JD 420 with manual steering. Every moving part from the steering wheel (broken and welded spokes) to the steering gear box is beat to death. From what I'm told from the JD forum here, it shouldn't be hard to steer, but it is, and obviously has been for decades - keys and keyways are whooped; stub shaft AND bushing bores are long beyond simply replacing cone bushings; u-joint below the steering wheel was badly worn, missing the through and one stub pin, and is now broken... Spindles are not tight (I can move them by hand with the tie rods dropped), but I've driven loaded dump trucks with dead power steering that turned easier than this does going through the field. Not that I won't figure it out, it's just that he's hesitant to let me take it completely apart quite yet because it's already stretching his budget.
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Today's Featured Article - The Mud Daubers and the Old John Deere - by Jon Zehnder. I have a 1941, John Deere Model A tractor I have owned for about a year and a half. This is my first (in case my wife reads this, "FIRST") tractor and it has been a learning experience. After considerable advise and assistance from local tractor nuts and the forums of Yesterday�s Tractors, I had finally got it running pretty well. I have tuned it up, overhauled the carburetor, installed a borrowed, rebuilt magneto, installed a new Power-Trol, patched the radiator, installed new front wheels a
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