[AaronPDX]

Hi,

I was wondering if anyone had a general guideline for when one might proactively replace the water pump. I've searched and not found anything, other than descriptions by members who have done this while replacing the engine mount. Basically, I'm at the point where I've done most of the PM that is normally recommended. I have a 2000 986S with 50K on the odometer. If there isn't a general consensus on this, what are my options for testing the pump? It seems like it would be difficult to assess the quality of the bearing while installed, due to the resistance of the coolant.

Thanks in advance!


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