[AT] Allis question

[Gunnells, Bradley R]

I thougt I'd change things up with a tractor related question.

Today I noticed something different about my 1945 Allis WC. I started it up and let it run (warm up) for a few minutes. As I was backing out of the pole barn (about 1/2 throttle) it kind of lurched and sped up. I throttled it down and continuted to back out.

I put it in forward gear and took off, I reached down to open the throttle and it opened up and reved much higher at full throttle than normal. I hooked on to the trailer and continued to use it but careful not to throttle it up too much. It would rev much higher than normal if I opened it up. It would idle down when the throttle was closed without any problem.

Does this sound like a governor spring? I was looking at the IT shop manual I have and there appears to be only one. The repair/overhaul directions say to pull it out with the mag and it's mount. But this would appear to leave the spring and throttle/carb shafts in the remaining housing. There is a cover that can be removed to access (or at least see) the spring.

Before I begin tearing things apart I thought I'd see if anyone has had a similar happening. Or am I even on the right track. If I do have a broken spring (or other part) where are some good places to find them. Is the AGCO dealer going to have them (is this a common part)? I use this tractor a fair bit (it's my favorite) so I'd like to limit the down time.

Thanks for any suggestions.
Brad

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