Water Pump Longevity

[pilut2]

Originally Posted by Rob175

Personally, I would NEVER "proactively" remove a working water pump, for fear that it "might fail".

Normally I would agree, but there seem to be plenty of no warning, catastrophic failures of these pumps. The vanes seem to erode as well. This was not my experience, as my vanes look like new. I am the second owner of the car and it was exclusively dealer serviced by the original owner. According to the service records the original coolant was still in the car. I drained pristine looking green coolant out. Internals visible from waterpump and thermostat galleries show absolutely no corrosion.