[AT] Mystery port on Super M water pump

[Carl Szabelski]

Dean,

I remember reading about an after market kit of some kind that provided a
plug on the side of the water pump, don’t remember exactly what for. At one
time people were adding homemade cabs to their H’s and M’s and would pipe
in heat during the winter. But that would require a return line somewhere.
Is there another plugged fitting where the thermostat mounts to the block?
I believe that’s where I remember reading the return line was supposed to
be. Also remember reading something about adding a return line to the upper
radiator hose for some reason using some kind of T fitting.

I would venture it isn’t for a block heater since it’s an elbow and pushing
any heating device into it would not result in getting in it deep enough to
do any good. Even if it was some type of flexible heater, you wouldn’t want
it installed where the rotating parts are.

Carl

On Friday, August 13, 2021, Dean Vinson <dean at vinsonfarm.net> wrote:

> The other evening I happened to notice this little pipe elbow sticking out
> of the side of the water pump on my Super M, and I realized I had no idea
> what it was for.   Couldn’t find it in the operator’s manual, and photos of
> new replacement water pumps don’t show any port there.   A well-done farmer
> mod, perhaps for purposes of adding a block heater?  Or for circulating hot
> water through something else?   Anybody ever seen one in that location?
>
>
>
> Thanks very much,
>
>
>
> Dean Vinson
>
> Saint Paris, Ohio
>
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