Yes, however....
If you are replacing the outer half of the pump only it is doable.
If you are replacing the WHOLE water pump, maybe.
Here's the big however: When you open or remove the pump, significant amounts of coolant will drain onto your timing belt, crank sensor, etc. I would avoid this, since the effects of this coolant bath on these parts probably isn't good in the long run.
Perhaps an outer half swap followed by a fresh water flush with the garden hose, then allowed to dry wouldn't be the end of the world, but you're still taking risks witht he life of the belt etc.
Steve
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