[Farmall] Sector Gears

[Jim Thomson]

Mark;

  You can case harden your gear by packing the gear in a steel box 
surrounded by charcoal. Place the box in a heat treating furnace at 
1200F for 3-4 hours the dump the contents into water.  You could try and 
find a local heat treating shop near by. The cost should not be over 
$25.  Tell them you want about .010-.015 case depth and you will be 
fine. You could do this on your own if you had a forge and could get the 
gear in the box with charcoal a nice dull cherry red and then hold it 
there. What you  are trying to do is force carbon into the steel  and 
then lock it into place.

-- 
Jim Thomson (a former heat treater)
Naples, FL
L50bmg at earthlink.net




Mark Sargent wrote:

>Farmall guys-
>
>Does anyone know of a source for M Farmall Sector
>gears?
>I suspect if there are - I can't afford them-- but let
>me know- I'd appreciate it.  I bought the Upper
>bolster OH kit from C & G - but I don't want to put it
>back together - and still have the 'speed wobble' on 
>the fastest M in western Ohio- due to the sector gear
>being worn.
>
>In the meantime I'll  continue to file the 'welds' - I
>used to fill the 'clatter' indentations-- on the one I
>took off.   The welds are softer than the gear- so I
>suspect I better do a home imitation of heat treat on
>the teeth when I'm done-   Has anyone done this?-- any
>words of wisdom are appreciated!
>Thanks
>Mark Sargent
>
>
>		
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