Governor and Idle speed problems

wilamayb

Well-known Member
We have done some work on a 47 H that had been sitting in a barn for arond 30 years.

It was very farmer engineered. We have repaired most of the engineering and have done some work on the engine.

It now runs very smoothly and has great power but will not idle down. After more looking and pilfering I surmised that someone else has had this issue as the governor linkage it totally out of adjustment (the one underneath the little cover with the metal tube coming out the top going to the front of the cylinder head) in the direction that I would need to adjust it.

The question is... What is worn or missing that would cause it almost, but not quite return to idle? I can push down on that linkage that goes vertical through the governor housing and make it slow down but then its speeds back up when I let off.

Even with the throttle handle removed and the linkages pushed all the way in the idle position it still idles too high.

Both weights are on the governor.

Any thoughts?

Thanks a heap!
 
Make sure that the throttle plate is installed correctly. Our SMTA had problems like this. Turned out the mechanic in town who overhauled the carb got the throttle plate in upside down. There is an angle [taper] on the edges of the plate that meet the sides of the bore of the carb. If the plate is in backwards, the throttle plate can't close tightly. Worth a look.
 
We pulled the governor and looked at it. It was then very obvious that the wear on the weights was the problem. The pivot point of the weights was so worn that they could not contact the hardened washer at the extreem idle position.

What does any monkey with no parts on a Saturday afternoon do? He goes and gets a washer and adds it in to take up the slack!

It is wild how responsive and accurate the governor is even with terribly worn parts. The tractor runs great and responds to load at any engine speed.
 

We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today.

Back
Top