Throttle Spring

[jmeyert4a]

OK Guys, I'm confused.

On my tractor, the throttle spring is currently routed in such a way as to pass in FRONT of, and more-or-less wrap around and attach behind the throttle shaft. This causes the spring to pull the linkage to the TO CLOSE position, which seems correct to me, other than you can tell that the spring was not meant to be bent around the shaft as it is. (See pics)

In figure FO31 of the shop manual, it appears that the spring is routed BEHIND the throttle shaft. If so, that would cause the spring to pull the linkage in a clockwise, or TO OPEN position.

Now I don't know much about tractors, but I spent (or mis-spent) much of my life working on race cars, and I'm damn sure that I don't want a throttle spring that pulls the throttle OPEN!

What is the correct placement and attaching point?

 

[wore out]

It is called the "governor compensating spring".

As you advance the setting of the throttle lever to increase engine speed the governor "fights back" against the speed increase, tending to try to return the hand lever to a lower speed setting.

The "governor compensating spring" helps keep the lever where you put it at the higher setting.

So the service manual shows it set up/working, and you are not working with a race car!

This post was edited by wore out on 11/12/2021 at 11:15 am.

 

[R Geiger]

(quoted from post at 12:54:56 11/12/21) OK Guys, I'm confused.

On my tractor, the throttle spring is currently routed in such a way as to pass in FRONT of, and more-or-less wrap around and attach behind the throttle shaft. This causes the spring to pull the linkage to the TO CLOSE position, which seems correct to me, other than you can tell that the spring was not meant to be bent around the shaft as it is. (See pics)

In figure FO31 of the shop manual, it appears that the spring is routed BEHIND the throttle shaft. If so, that would cause the spring to pull the linkage in a clockwise, or TO OPEN position.

Now I don't know much about tractors, but I spent (or mis-spent) much of my life working on race cars, and I'm damn sure that I don't want a throttle spring that pulls the throttle OPEN!

What is the correct placement and attaching point?

The spring is there to compensate for the pull that the governor has. with out the spring the governor will try to close the throttle so it is called a governor compensation spring. the manual shows it correct.

 

[jmeyert4a]

OK, thank you...

I will note here that while, as you note, "the manual has it correct", the manual ALSO refers to the part itself as a "THROTTLE SPRING"

Please excuse me for being confused.

 

[R Geiger]

Take the spring off and operate to full throttle and see what happens!

 

[wore out]

Your FO31 manual is a
generic/independent/aftermarket manual
not sanctioned by Ford & they have free
reign to call the spring in question
whatever they want! IIRC, it IS called
the governor compensating spring in the
OFFICIAL parts catalog, but I wouldn't
bet a hundred dollars on that!;-)

 

[JMOR]

(quoted from post at 14:54:56 11/12/21) OK Guys, I'm confused.

On my tractor, the throttle spring is currently routed in such a way as to pass in FRONT of, and more-or-less wrap around and attach behind the throttle shaft. This causes the spring to pull the linkage to the TO CLOSE position, which seems correct to me, other than you can tell that the spring was not meant to be bent around the shaft as it is. (See pics)

In figure FO31 of the shop manual, it appears that the spring is routed BEHIND the throttle shaft. If so, that would cause the spring to pull the linkage in a clockwise, or TO OPEN position.

Now I don't know much about tractors, but I spent (or mis-spent) much of my life working on race cars, and I'm damn sure that I don't want a throttle spring that pulls the throttle OPEN!

What is the correct placement and attaching point?

 

[hunkydory]

(quoted from post at 13:16:03 11/12/21) Take the spring off and operate to full throttle and see what happens!

Tru dat!

Mine doesn't have a spring. Not a big deal until I rebuilt the governor. Now the governor works properly and will snap the lever down when running wide open. A spring is in the near future.