Quote:
Originally Posted by Perfectlap
I believe Flat6 have posted that it should be done every 50K miles. Or maybe that was Wayne Dempsey in "101 Projects for Your Porsche Boxster". Mine lasted 80K miles. But I think the logic is to replace it while its still in its 'sweet spot' and not on the downslope. Seems like airline maintenance logic -- hence why flying is by far the safest mode of travel.
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I have never stated any mileage for water pump replacement. Thats because the pump is in service 24-7 whether the engine is operating or not. Its purely time based and my directive is every 36 months for my engines.
Cooling system flushes carried out annually extend life, because the Ph level of the coolant is what attacks the pump and leads to failure. Distilled water is also a key to keeping Ph levels in check longer.
We are working with JGR and Lubrizol on a conditioner for the cooling system that will help to keep the Ph level down and double as a lubricant for the pump. It just takes forever to gather real data that proves that it actually does work.
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