Super A governor

Hi all, I have a 48 SA that I've been using and learning on; I grew up with 2 cyl. JD's. I've done a pretty fair job on all the tasks that I've worked on; between the Shop Manual and info I gotten on here I been able to figure out most all the things that were troubling me. However I am having governor trouble and it has me pretty much stumped. The big main spring broke and I was able to buy a new one through Case/International and installed it and adjusted the carb linkage as outlined in the book. My issue has been when I start it up it goes to WOT no matter were the throttle is set and there is no response at all when I move the throttle. I shut down the engine and I have full throttle response. I took it back off and found that the Governor shaft spring was broken (#26). I replaced it with a spring I had in the shop and it does the same thing when I restarted it and according to the book it is a nonorderable part.

How heavy is this spring or am I looking in the wrong direction? Everthing is adjusted and free moving so am I looking in the right place or should I look at something else. All help and suggustions would be very usefull.

Thanks, Jay

Is that thrust bearing all in there? The spring opens the throttle & the flyweights close it.

Yes all the bearing are there although there is a small amount of slop in them. Not excessive but some.

There is a sleeve also that has to contact the fork to slow it down. Is that in place also? Both weights move freely?

The spring number 26 is the surge control spring.
It is a very light spring and you adjust it with
engine running. Back it way out so it does not
contact internal parts. Then you screw it in until
engine stops hunting if it is doing that. Far as
running full throttle when started, you have to
make sure the carb throttle shaft can be shut down
to low idle before you start the engine. Often
times, the rod between gov and carb is adjusted
wrong. It should be just long enough to fully open
the carb butterfly when throttle is in full speed
position and engine not running, must operate
freely, no binding.

Pete23, with the engine off I have full range of adjustment... if you start the engine in low throttle position it will run there until you go WOT then there is no longer any way to idle it down; move the throttle lever and there's no movement. When you shut down the engine you again have full range of throttle movement to the carburetor. This is whats got me so puzzled.

Does it run wide open normal high idle or is it over
revving to a much higher than normal rpm? Can you
grab the linkage between carb and governor when
running and slow it down with throttle in low idle
position. Doesn't add up for me from here without
seeing and running it.

Thanks to everyone that has answered me on this issue. When I got the tractor someone had placed a spring on the carb. side of the engine to somewhat control this and when it went out on me this summer while brush hogging and I tore it down and found the spring worn out I thought this was my answer; but it seems to be more in depth than i thought. I'll continue to study the parts book and try to get my head around the way it should work and try to get it resolved. If nothing else I know where a 230 is thats been parked and from what i've been able to see these are the same governors, so I'll try to buy it from them and maybe I can take 2 and make 1. I'll update when I have some more answers. Thanks, Jay