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Allis B Help
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Dek Thorne View Drop Down
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Joined: 19 Jun 2015
Location: Pennsylvania
Points: 114 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dek Thorne Quote  Post ReplyReply Direct Link To This Post Topic: Allis B Help
    Posted: 19 Jun 2015 at 5:52pm
I'm restoring a Allis B for my high school graduation project and I need some advice. when I started working on the tractor the original throttle linkage was unhooked and a cable was run from the carb to the steering column . When I hooked the throttle linkage back up I can only adjust the engine speed for a few notches before the engine speed stays the same. Any help on how to fix this will be greatly appreciated.
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CTuckerNWIL View Drop Down
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Joined: 11 Sep 2009
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Points: 22825 		Post Options Post Options   Thanks (0) Thanks(0)   Quote CTuckerNWIL Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jun 2015 at 6:30pm
 That engine should only run at about 1450 RPM. If it is not getting there, try lengthening the rod at the throttle quadrant on the steering post. Are the governor weights new or in GOOD shape? The pins and the holes in the weights wear and eventually come apart sending pieces down thru the cam gear Ouch
 Low idle should be set by the limiting screw while adjusting the carb air mixture.
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Lena 1935 WC12xxx, Willie 1951 CA6xx Dad bought new, 1954WD45 PS, 1960 D17 NF
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Dick L View Drop Down
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Joined: 12 Sep 2009
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Points: 5087 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dick L Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jun 2015 at 9:05pm
Start by making sure your linkage is correct and in adjustment.
Here are a couple pictures to compare your linkage with.

If you linkage is correct, with your had throttle pushed all the way forward and the linkage from the carburetor pulled all the way forward the pin and hole should enter to be in adjustment. If it is out of adjustment you bend the cross over arm to get it back in adjustment.

Note: there happens to be two different styles of cross over arm connections.

If the linkage is in adjustment then look at the spring in my first picture to make sure it is correct. That spring is what has to overcome the governor weights that is trying to correctly close the carburetor back to idle. A spring that is light will give you low RPM's. A spring to heavy will give you excessive RPM's.   
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Dek Thorne View Drop Down
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Joined: 19 Jun 2015
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Points: 114 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dek Thorne Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jun 2015 at 10:15pm
My tractor does not have the oil line running to the governor and the pieces that the spring is attached to is different. will that make a difference.
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Dick L View Drop Down
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Joined: 12 Sep 2009
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Points: 5087 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dick L Quote  Post ReplyReply Direct Link To This Post Posted: 19 Jun 2015 at 10:52pm
Originally posted by Dek Thorne Dek Thorne wrote:

My tractor does not have the oil line running to the governor and the pieces that the spring is attached to is different. will that make a difference.


No, they both operate the same.
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