In the course of changing my belts today I noticed
that the water pump pulley does not spin freely as I
might have expected. It's easy enough to turn by hand
but it does feel like there is some resistance,
perhaps bearing wear? What I'd like to know is whether
or not I should replace the water pump as a preemptive
measure. I have no idea if the amount of resistance
I'm noticing is normal or a sign of trouble in the
future.
There are no symptoms of problems in the cooling
system and the pump does not make any noise while
turning.

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