nic
Ive not replaced any water pumps on a busa,,but I do know that most car water pumps that I have replaced on auto's,,the pumps have a hole on the under side thati is called a weep hole....thats what it looks like,,,when the pump goes bad,,water will leak out of that hole indicateing that the pump is bad,,,although the weep hole is leaking,,it still is pumping water but is going bad,,,out side [ external fuel pumps on cars have weep hole too,,they either leak gas onto the ground or mix it with the oil,,,,,,,a water pump can go bad in a few ways,,,One ,,the weep hole leaks water, two the outer bearing will go bad and squeal,,or wobble,[ if left unattended will take out the radiator and shroud when it comes unglued ], I do not know what that hole is,,,Ive not had one apart,,,but you can bet,,its there for a reason,and probually is a weep hole,,,,or lube