Allis B - More Governor Help...

allisbchal · Sep 6, 2017

No control of the governor.

Opened up the governor housing...everything looks fine, clean, nothing stuck, everything oiled well.

But what opens and closes those weights? Should the fork connect to the thrust bearing? Or how exactly does the thrust bearing get moved in and out to open and close the weights? I just feel like something might not be connected to open and close them correctly...

Thanks!

Bob · Sep 6, 2017

Centrifugal force throws the weights outward, forcing carb butterfly shut.

The throttle lever and linkage pulling on the governor spring tries to pull the carb butterfly open, while forcing the fork against the thrust bearing, forcing the weights inward.

The balance between these 2 forces determines at what speed the engine will run for a given throttle setting.

NO solid connection between the fork and thrust bearing.

allisbchal · Sep 6, 2017

(quoted from post at 17:47:58 09/06/17) Centrifugal force throws the weights outward, forcing carb butterfly shut.

The throttle lever and linkage pulling on the governor spring tries to pull the carb butterfly open, while forcing the fork against the thrust bearing, forcing the weights inward.

The balance between these 2 forces determines at what speed the engine will run for a given throttle setting.

NO solid connection between the fork and thrust bearing.

Thanks for the info! Makes sense...but now, I'm really confused lol. Why in the world do I not have any control over the governor...lever is moving, spring is expanding...hmm...

Dick L · Sep 6, 2017

Did you read my post below??

allisbchal · Sep 6, 2017

Just did. Even if the throttle plate is backwards on the carb would it affect it enough to have zero control on the governor? I mean I have none at all.

I guess if so, I need to go back and re-do the carb?

Thanks!

Bob · Sep 6, 2017

Look at the carb... there's simply a stop at one end of throttle lever movement, and an adjustment screw at the other end of lever travel.

The screw is the idle speed screw, when the lever moves so that idle screw is touching, the butterfly should be closed/nearly closed. Move the lever the other direction, against it's stop, and the butterfly should be wide open.

Dick L · Sep 7, 2017

If your not familiar with how the governor works and why you will not be able to think it thru without disconnecting the linkage and checking with your eyes.

Dick L · Sep 7, 2017

First thing is to take hold the linkage where you see it in the last picture and with the engine running push it forward to see if the governor is trying to keep you from moving it forward.
The second picture shows the governor spring in the wide open position where it needs to be to check the linkage adjustment.
The next to the last picture shows the governor cross over arm in the wide open position without the engine running with the correct position for connecting the straight carburetor linkage pulled so the throttle plate is wide open.

If it is not in that position when you check it you will need to bend the cross over arm so it is in this position.

Best I can do for you. When adjusted like the picture it will give you the control over the RPM's (IF) you have the idle set properly and the throttle plate is in correctly. The stop screw on the back is the idle speed control. the idle screw does not set the speed it adjust the fuel mixture so it will have the correct fuel air mixture to actually idle at the desired idle speed.

allisbchal · Sep 7, 2017

(quoted from post at 06:44:38 09/07/17) First thing is to take hold the linkage where you see it in the last picture and with the engine running push it forward to see if the governor is trying to keep you from moving it forward.
The second picture shows the governor spring in the wide open position where it needs to be to check the linkage adjustment.
The next to the last picture shows the governor cross over arm in the wide open position without the engine running with the correct position for connecting the straight carburetor linkage pulled so the throttle plate is wide open.

If it is not in that position when you check it you will need to bend the cross over arm so it is in this position.

Best I can do for you. When adjusted like the picture it will give you the control over the RPM's (IF) you have the idle set properly and the throttle plate is in correctly. The stop screw on the back is the idle speed control. the idle screw does not set the speed it adjust the fuel mixture so it will have the correct fuel air mixture to actually idle at the desired idle speed.

Thanks for the info and the pictures. Will try to give that a shot this afternoon!

john from Ontario · Sep 7, 2017

Thanks for posting those pictures Dick L. They are just what I need for my project.

Allis B - More Governor Help...

allisbchal

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Bob

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allisbchal

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Dick L

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allisbchal

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Bob

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Dick L

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Dick L

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allisbchal

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john from Ontario

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