GOVENOR

DWCJD · May 14, 2013

GOT LINKAGE ON MY REBUILT WD45 HOOKED UP AND GOVENOR WORKS GOOD BUT COMES ON TOO FAST FOR MY LIKING, FIRST 1/2" OF TROTTLE A LITTLE BIT, NEXT 1 1/2" ALMOST FULL THROTTLE, LAST 2" OF TROTTLE NO RESPONSE CAUSE ITS ALREADY WIDE OPEN. THESE AC WD45 TROTTLE LINKAGE ARE A PAIN TO A NEW AC OWNER. WOULD LIKE MORE OF A GRADUAL TROTTLE AND DON"T WANT TO LOOSE WHAT I WORKED SO HARD TO GET SO FAR.DWC

Dick L · May 14, 2013

I have not worked on a WD45 to speak to the exact adjustment but your linkage has to be out of adjustment. First a governor does not come on in any case. To think your way thru your problem you first have to understand what a governor does.
A governor is an RPM limiter. Its job is to shut down the RPM's or to slow the engine. When an engine has a governor you must overcome the governors spinning weights to increase the engine speed. That is done with a spring which can be internal or external that is connected to a manual throttle control which can be hand or foot. Regardless what engine you are working on tractor or truck will be the same as far as how they work.
Someone that has worked on the WD45 can give you the exact place to make adjustments but you can figure it out on your own if you understand how it works along with some trial.

YTSupport · May 14, 2013

Is it possible you have the wrong springs. It's been a long time, but if it's a flyweight governor like mine are, the spring tension is important for proper operation because it's what provides resistance on the final throttle shaft. Been 10 years since I rebuilt one (though that is coming in the next couple of months) so I hope someone else provides information from a more current memory.

I want to say it may be too light of a spring but I'd have to go up and look to job my memory on which way it works.

Dick L · May 15, 2013

Wouldn't think a weak spring would bring it to wide open at any throttle position.

On the B's and C's you bend the cross over arm to make the adjustment.

Bob Bancroft · May 15, 2013

Agreed. The only real difference between what I call the "small block"- B/C etc. and the "big block" WD and up, with the governor is one has some external linkage and spring, and the other is internal.
Gov. to carb. link adjustment is the same.
As you well know, the spring is the key to speed.
The WD/WD45 linkage from the hand lever to the gov. is quite complicated, but just takes some time fooling with it to get both ends in agreement.

Anonymous-0 · May 19, 2013

its in the linkage at bell crank i suspect its the rod going straight up from throttle lever to rear of bell crank

Anonymous-0 · May 19, 2013

bell crank adjustment is visible from this pictur<a href="http://s738.photobucket.com/user/pankeyc/media/07050016411-1-1.jpg.html" target="_blank">

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GOVENOR

DWCJD

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Dick L

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YTSupport

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Dick L

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Bob Bancroft

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Anonymous-0

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Anonymous-0

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