TO-35 Governor issues again

aarolar

Member
Some of you may remember me having issues with the governor on my TO-35 and after extensive talking with yall and John(UK) I finally had it working properly. It functioned fine for about 3 months then last weekend I noticed it starting to surge a little mowing the field last weeked. Now this weekend it just all out quit functioning at all it only has two speeds idle and WOT the governor is not working against the throttle at all. I have checked over all the linkage and can't find anything loose so I am at a loss I have no idea why it would just quit out of the blue the only thing I know to do it to reset it again using Johns instructions.
 
If everything looks ok then it might be worth re-adjusting as per John's instructions. Failing that it sounds like it could be internal which would be a much bigger job. I would think the adjustment screw on the opposite (distributor) side of the engine would be something I would try.
 
(quoted from post at 13:47:27 07/05/13) If everything looks ok then it might be worth re-adjusting as per John's instructions. Failing that it sounds like it could be internal which would be a much bigger job. I would think the adjustment screw on the opposite (distributor) side of the engine would be something I would try.

Yes sir I checked that screw and it was still locked tightly where I set it originally but I may try adjusting it in some to see if that gets anywhere. I need to make it through this grass mowing season and I could tear it down this winter and check the internal components.
 
Grab the governor arm and see if there is any resistance when you push against it with it running. If there isn't any resistance or if you can not see the arm moving at all then I'd say you might as well take the timing cover off because your governor inside has slung apart. As far as the bumper screw it could stop the governor from working if it was screwed to far in but you can take that screw completely out and the governor will still function. It's only there to help with a surging problem if there is any.
 
Somewhere in the manual it said that if the oil hole in the cam is clogged then the govenor won't work.
 
(quoted from post at 05:25:59 07/07/13) Somewhere in the manual it said that if the oil hole in the cam is clogged then the govenor won't work.

Where is this located what cam?
 
Well since you only have one cam that would effect the govenor I would suspect that "one."I think the hole is to the rear of the shaft and would require an extensive tear down to check. Today I'll find it in the manual and let you know what page.
 
So before I tear this thing down I have a few more questions.

If I unhook the linkage to the governor and rev the tractor up how much push should I be feeling with my fingers from the govenor arm?

If the governor has slung apart shouldn't I be hearing some sort of knocking or rattling noise from up around this area?

And finally how extensive of a teardown is it to get the governor out to check and replace it will I need to pull the whole front end off or just the sheet metal and radiator?
 
(quoted from post at 04:16:20 07/09/13) Well since you only have one cam that would effect the govenor I would suspect that "one."I think the hole is to the rear of the shaft and would require an extensive tear down to check. Today I'll find it in the manual and let you know what page.

Im still not sure what cam you are talking about I haven't ever worked on anything with a governor other than a briggs or a kohler so this is kinda new territory for me. I have a I&T shop service manual I don't know which one you are talking about.
 
I think sheet metal and radiator should get you there. I have that off my TO35 right now, I can have a look for you and post some pictures if that would help.
 
(quoted from post at 20:47:36 07/10/13) I think sheet metal and radiator should get you there. I have that off my TO35 right now, I can have a look for you and post some pictures if that would help.

Thanks for the offer inno but I'll just start tearing into it it'll only take a few minutes to get that far along. If anyone has done this before and wants to offer up any suggestions please do I have got to get this thing fixed with it raining every day like it is it won't take long for my place to be looking like a jungle. Plus its going to be time for the fall garden soon.
 
The cam is inside the block behind the large gear and the govenor. Pulling the cam would be a bad idea as that will drop the lifters down into the block if I remember correctly although the vent hole is toward the front looking at the figure.
 
(quoted from post at 05:27:59 07/11/13) The cam is inside the block behind the large gear and the govenor. Pulling the cam would be a bad idea as that will drop the lifters down into the block if I remember correctly although the vent hole is toward the front looking at the figure.

We will know soon enough I will try and take some pictures to help clear things up this seems to be a common topic around here.
 
Ya know, a few months ago there were a few threads on governor springs, a hidden one infront of the manifold, usually just hanging there or gone altogether, the one wrapped arounf the throttle linkage, sometimes another acting as a carb idle/ gov return just for good measure. If you go into the achives here and the MF forum? There should be several hits and tons of pictures. If it is a spring, atleast you won't have tear the front clip apart...
 
Well here is the conformation, surprisingly it wasn't bad at all pulling it apart. The crankshaft nut came off easily with a wrench and a few licks from a 3lb mallet and I managed to work the pulley off with a prybar with little effort. I didn't pull anything but the sheetmetal to get to everything. Worst part is that when I pulled the timing cover back all but two of the counter weights fell into the oil pan plus most of the cage that retained the weights is missing. I guess Ill be pulling the pan to recover all my missing parts.





 
So a governor assembly, crankshaft seal, timing cover gasket and a oil pan gasket should get me back going or am I missing something?
 
So you found your problem. Once you get the new govenor assy. I'd count the ball bearings and see if they are all there and if nothing got sheered then I wouldn't pull the pan. But if there's anything sheered then I'd drain the oil and pull the pan and change oil and filter too.Maybe start a new post.
 
(quoted from post at 05:34:08 07/14/13) So you found your problem. Once you get the new govenor assy. I'd count the ball bearings and see if they are all there and if nothing got sheered then I wouldn't pull the pan. But if there's anything sheered then I'd drain the oil and pull the pan and change oil and filter too.Maybe start a new post.

The pan will without a doubt have to be pulled I only caught 2 out of 8 balls that were present and the only place they could be is in the pan along with the small pieces of the retaining cage.
 

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