Still shopping around for a truck and came across this odd looking pump(?) attached to a AA. At least I think its some sort of pump driven off the timing gear. Any ideas as to what I am looking at here?
That is not a pump, that is a governor. That linkage would connect to the carburetor so that you could set the engine at a constant speed like one does on a tractor. Chances are this truck has a pto drive of some kind attached to the transmission. There is a man who lives near me that has a small hammermill mounted in the bed of his AA that runs off of the PTO drive. He would benefit from one of these.