Quote:
Originally Posted by blue2000s
The engine block is the housing for the water pump. If the bearing fails and the blades contact the housing, the impellar fins break if they are plastic, the engine block is destroyed if they are steel.
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Is this something that happens often? I've never heard of a water pump destroying an engine block (or even the pump housing for that matter).
Besides, the question I asked pertained to "sending metal through the engine", not destroying the block. It seems to me that if the bearing failed to such a degree the the impeller starts beating the block to death, that the bearing failure and all of the symptoms that go with it have been ignored for a long...long..time.
I believe that Porsche used metal impellers on their pumps. Has this changed?