1957 420C - Governor Question

General help and support for your Lindeman through 2010 John Deere crawler
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dr1zsk1
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1957 420C - Governor Question

Post by dr1zsk1 » Sun Mar 30, 2014 7:17 pm

When I'm setting the engine idle the throttle all the way left kills the crawler and all the way right only goes to 1900rpm on the tach.

When I adjust the throttle at the carb manuall I can get it to over 2000 without any issues. Do I just need to adjust the linkage at the Governor to get it right?

I have the manual so that's not an issue - I jsut wanted to make sure I was seeing this right. The book says that all the way left should be slow idle and all the way right should be fast idle.

Mike
If man can break it man can fix it .. it just takes time and money.

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DukeofDeere
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Post by DukeofDeere » Sun Mar 30, 2014 9:07 pm

Throttle wide open and carb butterfly wide open and the gov to carb linkage should be one hole short of going together.
Throttle wide open is to the right.

Duke

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dr1zsk1
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This is what I found in the 40 tune up manual.

Post by dr1zsk1 » Mon Mar 31, 2014 7:09 am

Is this what I use?

Image

Image
If man can break it man can fix it .. it just takes time and money.

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Lavoy
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Post by Lavoy » Mon Mar 31, 2014 8:31 am

Correct.
Lavoy
Parts and restoration for antique and late model John Deere crawlers.
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dr1zsk1
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Running like a champ.

Post by dr1zsk1 » Mon Mar 31, 2014 8:18 pm

So I went in and adjusted the governor linkage. It went from dying when I pushed the lever up to running at what looks like about 550-575 in low idle and sounds really good. The high idle is just at 2000 and after adjusting the carb just a bit the baby sounds really good.

The timing was way off so I have it set with a timing light and it is now smack on.

Still have erratic problem in the ignition. I installed a new coil I put on it and new plug/coil wires.

It really does sound good. I'll try to take a video this week of everyting.
If man can break it man can fix it .. it just takes time and money.

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