I am restoring a sleeve valve Knight engine that came out of a Willy’s Falcon Knight. The water pump is pretty shot, as the “ cage” at the back of the pump is all decayed away, what with these old cars never having any sort of rust inhibiter. I have asked on other forums,where I thought there may still be one alive, but to no avail! I do not know if one Knight engine water pump will fit all other Knight engines, there may be some difference! Thanks for any replies in advance, and kind regards. Phil.