another dead boxster @#$%!

[Jake Raby]

Its not mileage that counts!!!!
Its TIME IN SERVICE!!!

The water pump impeller doesn't wear.. All it is moving is clean coolant, there is no friction. What breaks the impeller blades is EXPOSURE to the environment that the impeller is a part of whether the engine is running or not.

Because of this we see cars with 10K miles from 1997 crack heads because the impeller has become brittle and a piece of it snapped off.

The last M96 engine that was built came from 2005, at this point ALL M96 engines are AT LEAST 5 years old and ALL of them need the water pump changed.

Don't consider mileage for an AOS, water pump or IMS precautionary procedure to be carried out. The IMS bearing's outer seal is exposed to engine oil even when the engine isn't running, the seal breaking down and allowing engine oil to attack the bearing and wash away the permanent lubrication is what begins the IMS bearing failure.

[Gilles]

Originally Posted by Jake Raby

Its not mileage that counts!!!!
Its TIME IN SERVICE!!!

The last M96 engine that was built came from 2005, at this point ALL M96 engines are AT LEAST 5 years old and ALL of them need the water pump changed.

Jake,

A friend of mine with an '06 Cayman S took his car to the dealer before the warranty expired (+/- 15K), but reached the four years.

The Service Mgr. recommended replacing the water pump saying "these pumps are constantly failing and will happen sooner than later, we better replace it now while still under warranty"...

also on the Cayman Club (Planet-9..) I have read of several Caymans that had a water pump failure
.

[litteng]

i just did a quick check and the pump for my 2006 has a different part number than the earlier ones, is the impeller on these still plastic too?