Throttle and governor linkage question

I have an early Ford 2000 tractor and the Throttle Control Governor Compensating Adjusting Rod (Ford part C0NN9A724A) and the Drag Rod (Ford part C0NN9B786A) are welded together. Can anyone explain why these are 2 separate parts and the function that they provide?

I have a surging problem particularly when I increase throttle that I have been able to tame to some degree by adjusting linkages, but I am not able to work it all out and I though this might be the cause.

Thank you

I bet the previous owner had the same problem with surging and thought he could correct it by welding. Problem lies somewhere else.

That linkage/mechanism is on the throttle lever side of the governor and should have NO effect on surging.

As to what it originally did, as you advance the throttle lever increasing ''pull'' from the governor spring tries to move the lever to a lower speed setting, fighting the friction pad on the throttle lever.

I'm NOT real familiar with this particular tractor, but in general Ford used the term ''governor compensating'' to describe parts that contract the force that tries to move the throttle lever to a lower setting.

To try to correct the surging, first make sure the length of the linkage between the governor and carburetor is correct.

Basically, the carburetor butterfly lever should reach it's end of travel in the ''open'' position JUST BEFORE the governor lever reaches it's end of travel in the wide open throttle direction.

If that is correct and it still surges that would possibly point to a slightly lean condition, or an internal issue with the carburetor that causes it to not transfer properly between the ''load'' and ''idle'' circuits.

What's the history of the carburetor, it appears it MAY be an aluminum aftermarket ''knockoff'', did the surging begin with a carburetor replacement?

Has the engine ever NOT surged since you've had the tractor, and, if so, at what point did the issue show up?

Thank you for the reply and information.

I adjusted the linkage according to the Ford manual. Throttle set to high and hold the carb full open. If you can slide the arm on easily, it is correct, in not then adjust. It sounds like this is the same procedure you recommended.

The surging was far worse as in it would just surge all the time until I adjusted the governor to carburetor linkage. So that definitely helped. It now only does it if I initiate a speed change, or the load on the engine changes significantly.

The carburetor is new and almost certainly after market. It was on the tractor when I purchased it. I only ran the tractor for a little while when I got it as there was a knocking coming from the bottom end. It turned out to be an oil pickup that had been bent into the crankshaft. It looks like the tractor was high centered as the oil pan was dented in.

I tried a new after market carburetor and the behavior is the same. It has never not surged since I have had it.

The carburetor mainjet is currently 1 turn out. This is the recommended starting position. I will try to enrichen and see if the smooths out the surge.

I will try to enrichen and see if the smooths out the surge.

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GOOD plan. Take note of where it is an open it up a little at a time and see if surging gets better before it's obviously overfueled and begins to smoke black.