There was talk a while ago about steering clear of the metal bladed water pumps.
If I remember correctly, its possible that if the pump bearings collapse it allows the metal blades to drop & wear through the alloy crankcase wall - you can guess the outcome of that.
My pump which was 10 years and 48,000 miles old when I removed it had no damage to the pump vanes and visually looked the same dimensions as the new pump. But costing only a couple of hundred dollars, I strongly believe that this type of preventative maintenance is a no brainer, considering the damage (not to mention the considerable inconvenience) of a failed water pump....
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2001 Boxster S (triple black). Sleeping easier with LN Engineering/Flat 6 IMS upgrade, low temp thermostat & underspeed pulley.
2001 MV Agusta F4.
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