[Farmall] Cub governor inspection and reinstallation

Ben Wagner ben at olde-books.com
Wed Apr 28 05:40:59 PDT 2010


Dale wrote:
> Hi folks!  I have made a new project for myself…I inadvertently removed the governor on my ’55 Cub. (originally planned on replacing the front seal, but didn't need to after all, only the rear)  Before I had really read up on it…it was OFF!  Needless to say, I did NOT have the #1 cylinder at top dead center or mark the teeth, as I have NOW read!  
>  
> I have cleaned the gunk off it, removed the old gasket, and now need to check the bearings, etc.  I have read the manual and checked a couple forums, but things are a bit vague (or I am a bit obtuse…hard to tell which!) regarding the actual disassembly of the governor.  The tractor was running fine when I began, so obviously I would like to not mess it up.  So can someone tell me how to disassemble the unit, and what are the absolute musts to do?  Do I need to remove the distributor for any reason?  Do I need to replace the rockshaft oil seal? (always, sometimes, on condition?) How do I know if the spring is OK?  Does the distributor gear seal usually need replacing?  Anything else?    I know I will need some help reinstalling it, too, since I didn't plan ahead.  Have a list of steps?
>  
> OK for now and thanks in advance for your help.
>  
> Dale Finch
> Flya737 at aol.com
>  
>
>
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>   
I did the same thing, Dale, and I asked everyone here for advice.  Jim 
Becker wrote this, but you may have to adapt it for your Cub since he 
was helping me on my Super A:

"Remove the magneto. Rotate the crankshaft until it is at TDC,cylinder 1 
on compression. Look into the governor opening on the engine.  You 
should be able to see a bit of the cam gear, including the double punch 
mark. Install the governor with its double punch mark in line with the 
cam double punch mark. If you cannot find the double punch marks, rotate 
the governor and install it so the drive slots are 35 degrees away from 
horizontal (at about a 2 o'clock 8 o'clock orientation, viewed from the 
back). Rotate the magneto BACKWARDS until the rotor is pointing near the 
#1 plug wire post of the distributor cap and the drive lugs are 35 
degrees from horizontal. Install the magneto and set the timing by the 
book."

I thought at first that I didn't have punch marks, but after a bit of 
cleaning, both appeared from under the grime.  I believe the punch marks 
were installed in the factory, so they should be there. 

Hope this helps... If it wasn't for Mr. Becker, my Super A still 
wouldn't be timed!

Ben Wagner



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