Tranmission Oil Pump


I found an inexpensive plastic pump at the local autoparts dealer that is designed to pump liquids. In this case it is being used to pump gear lube for the transmission (Swepco 201 Multi-Purpose Gear Lube). It works by squeezing the red bulb at the top of the pump. The viscosity of the gear lube is high enough to make it act rather slowly. The bulb acts similarly to a turkey baster where the natural tendency of the bulb to return to its design shape produces enough vacuum to pull the liquid up the input tube into the bulb. There are pop valves that forces the liquid through the output tube when the bulb is squeezed again.
Last modified: Sun, 03 Feb 2002


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