[Farmall] Governor Timing

[Jim Becker]

Ben,
You are likely to be able to do it without taking the front cover off.  You 
may end up doing a little trial and error, requiring doing some stuff more 
than once.  But it will still be less work than taking the whole front end 
apart.  So it is worth a try.

First off, have you turned the crankshaft or magneto since the governor was 
pulled out?  If not, method 1 may work.

Method 1:  Look through the opening where the governor will be installed. 
You should be able to see the drive lugs for the magneto.  Look at their 
orientation.  Rotate your governor then slide it into place so that it will 
engage the cam gear and the drive slots of the governor will engage the 
magneto drive lugs without turning the magneto.  If you are lucky, it will 
all slide into place.  Then you can check the timing by rotating the engine 
to TDC and see if the magneto trips at TDC.  It will either be pretty close 
or way off.  If way off, this method didn't work and you can try method 2.

Method 2:  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.

Removing the crankshaft pulley isn't easy.  You need to use a bearing 
splitter to keep from breaking the flange.  A puller that uses a hydraulic 
jack usually works better than a screw type.  Hopefully, you won't need to 
do this.
Jim Becker

--------------------------------------------------
From: "Ben Wagner" <ben at olde-books.com>
Sent: Friday, April 02, 2010 9:14 AM
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Subject: Re: [Farmall] Governor Timing

> Jim Becker wrote:
>> Yes, it is timed.  When the crank is at #1 TDC, a single mark on the 
>> crank
>> gear will be towards the cam shaft.  The cam gear has a single mark that
>> should be aligned with the mark on the crankshaft.  In the same position,
>> the cam gear will have a double mark in line with the governor shaft. 
>> The
>> governor gear has a double mark to align with the other double mark.  If
>> they are not aligned, you will not be able to set the magneto timing.
>> Jim Becker
>> _______________________________________________
>> Farmall mailing list
>> http://www.antique-tractor.com/mailman/listinfo/farmall
>>
> Is there any way to do this without removing the cover on the front (and
> the front axle)?  I have not had to remove all that, and I really don't
> want to unless it is necessary... but I might just have to bite the
> bullet and do it.
>
> Any hints on how to remove the crankshaft pulley?
>
> Thanks,
> Ben Wagner