timing a 1948 C model

Rusty Smith · Jul 18, 2009

I got a 1948 C model tractor from a guy by a trade, it was not running, he said that it was running a couple months ago and quit, he replaced the points in the magneto, and could not get it to run.it was sparking. I figured it was a rotor timing issue, and got some advice from "old" on here, I put it in time and did get it to run, not great but it ran. It seems to have carb issues too. My question is this, can it still not be in time? will it either not run if the timing is off, or will it run poorly?, there is no back firing, just absolutely no throttle response, and sputtering, it finally stalled out, I had put a lot of carb cleaner in it, and let it run for a few minutes, I pulled a spark plug out and it was soaked with gas, pulled a second one, same thing. I did get it to run once for having to time it, so I can do it again if need be, but with the carb problem also I don't want to overlook a timing issue.

Anonymous-0 · Jul 18, 2009

Engines that have sat for very long may have more than one issue so you may have two or three problems at once. I'd pull both needles on the carb and shoot some carb cleaner in the holes. Count the turns from the stop first so you can go back to the same setting. Check the points for certain that the gap is right then again look at the timing. Clean all the terminals on the plugs, wires and mag. At least its running so each little can thing be eliminated.

old · Jul 18, 2009

Did you get the manual from me if so ok if not send me an e-mail for it. Next put about 1/4 cup of ATF in each cylinder and let it sit a day or 2. Then spin it over with the plugs out to clear the cylinders. What that will do is clean up the cylinders and free up the rings if they are sticking. Next pull the main jet cover bolt/cap out of the carb and make sure you have a good flow of gas out of it there. If you don't then you need to open up the carb and clean it up real good if not put a kit in it

steve(ill) · Jul 18, 2009

there is a timing hole in the fly wheel housing on the side (1 inch hole). turn the motor slowly by hand untill you hear the magnito impluse "snap". look into the timing hole and you should see the line with "TDC" meaning you are at top dead center on the stroke. If you dont see it, rotate 1/2 turn and it will "snap" again, then look in the hole. If you cant see the TDC, have a buddy look while you turn slowly and see how far off you are. The two bolts on the mag flange let you adjust a few degrees up or down to TDC. After that, clean the carb.

timing a 1948 C model

Rusty Smith

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Anonymous-0

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old

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steve(ill)

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