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Minneapolis Moline Tractors Discussion Forum

Need help with my ZAE

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02-06-2018 00:11:20

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I have a nice old 1950 ZAE, it runs well but the entire time I have owned it, there has been an issue with the idle being too high, and the first one third movement of the throttle not having any response to the RPMs of the engine. After reading a bit on this subject I tried turning the speed adjustment screw on the governor to see if that would help the issue, as well as checking the bend in the linkage between the carb and the governor.Now, after running the adjustment screw in and out on the governor the engine will only idle at a high rpm, and giving the engine any throttle just kills the engine. Can anyone give me an idea of what I need to do to correct my governor speed adjustment so the tractor will run ok. Do I possibly need to have my governor rebuilt or unstuck?? I recently purchased a rebuilt carb from a vendor on ebay, because the old carb I had was cracked at the fuel inlet. It ran well with good power with the exception of the runaway idle issue, until I messed with the speed adjustment screw, I had a useable tractor, could really use some help with this, Anyone????

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02-13-2018 18:55:13

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 Re: Need help with my ZAE in reply to sunsettractor, 02-06-2018 00:11:20  
That adjusting screw on the backside of the Gov has nothing to do with your problem. i don't have time to type all the things to check. I doubt that there is anything wrong with your Gov. Give me a call 815.456.2114 Central Standard Time


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02-06-2018 11:54:08

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 Re: Need help with my ZAE in reply to sunsettractor, 02-06-2018 00:11:20  
After making sure everything moves freely like the other guy said, I would think your governor is wore out. Can you try another one? They are easy to replace. They seem to wear out after time. I have a 5-gallon pail of wore out ones. I should learn how to repair them.

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02-06-2018 11:35:37

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 Re: Need help with my ZAE in reply to sunsettractor, 02-06-2018 00:11:20  
Governor rod bent or too long. Correct carb? Governor rod should fall freely to bottom and close carb to idle position when throttle lever in back position. When throttle forwarded rod should move upward freely then release to bottom when throttle pulled back. You should be able manually to push rod up and it should fall freely. Put governor adjust screw back to where it was. I governor weights stuck? How sloppy are governor bushings?

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02-10-2018 16:28:41

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 Re: Need help with my ZAE in reply to molinegb, 02-06-2018 11:35:37  
It has a TSX 97 MS carb , all linkage moves free, no binding at all. As I said, it idles high, pushing down on the carb linkage drops the idle down but it goes up when you let go, Doesn't seem like any adjustment will change that. I didn't keep track of where the governor screw was before I started messing with it, I was hoping someone could tell me a starting point for that. I don't know a thing about the governor on this tractor, how would I be able to check if the weights are stuck or where the slop would be in the bushings?

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02-11-2018 05:50:48

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 Re: Need help with my ZAE in reply to sunsettractor, 02-10-2018 16:28:41  
Take out four bolts and remove linkages. Governor slides out. Probably not bushings as it would make gov erratic. Something is binding. Gov easy too find.

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02-11-2018 14:01:11

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 Re: Need help with my ZAE in reply to molinegb, 02-11-2018 05:50:48  
I am in California, Can you recommend a reputable supplier I could order a rebuilt governor assembly from? Thanks for replies...Tom

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