A few weeks ago I had a mechanic friend come over and help me get my 2N started. Unfortunately I had the hood off and a temporary gas tank set up, so I could not drive it while he was here. A week later, when I hooked up the gas tank, hood and air cleaner I started the tractor and took it for a spin. She ran great at idle, although I noticed that there was no engine speed control through about 1/3 of the quadrant. When I drove her around the yard, an old problem re-appeared: the governer did not change the engine speed when I went up a hill. I could drive around in 1st gear and 2nd gear, but the engine really bogged down in 3rd; she could barely move. I changed some of carb settings, hoping they would help. Initial settings, which were working before I started messing around: idle mixture screw, 3/4 turn out, main screw, 1-1/4 turns out. My friend had noted that she was running a bit rich. Nothing I did made her run better under load, so I figured I was going have to mess with the governor. The next week I did some work on the governor, which I will detail below, but I don't think the governor work caused the problem I'm having today.Today, with the governor back on (and a new fuel valve/sediment bowl assembly, also), she would not start. She'd catch and fire for a few seconds, then stop. I tried to figure out why, and concluded two things have happened, aside from the governor, since my friend had helped me. I changed carb settings and I changed the fuel valve. (By the way, the old valve was not a Ford 2N valve and it was corroded and leaking.) I took the new valve off and inspected the screens. They looked good, and besides I had fresh gas and gas was making it to the carb. I tried the initial settings (1 turn out) on the mixture screws, and when that didn't help I took the carb off and cleaned everything out with compressed air. I put the carb back on and tried again. After several tries (if at first you don't succeed?) I finally decided to methodically adjust the mixture screws. I think there is an art to this, because back when my friend was here he did it and made this thing run, but I could never figure out why he adjusted one screw or the other. Anyhow, the best I could get out of this was to make the engine run a little longer (I was up to about 15 seconds at one point), but it sounds weak and the mixture is quite rich. The idle screw was only 1/4 turn out and the main screw was 1/12 turns out to get it to run weak for 15 seconds! How should I go about adjusting this? I started with the throttle lever stop screw completely backed off and initial FO-4 settings. Should I from there mess with only the Idle mixture screw until it runs, and the main screw later? This method, while it appears to me to be the method described in the FO-4, did not work. I did not see any improvement until I adjusted the main screw. Or am I way off base? Should I set them back to the initial settings and go look elsewhere for my problem? Governor work:
I did what little I could with the governor. The loops on the spring are as short as I can make them. I tried putting some shims in so the inner and outer levers did not wobble side to side so much. Some previous owner has welded the governor drive gear to the drive shaft, so I cannot rebuild this properly. The only internal change I could make was replacing the steel balls.
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