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Old 08-10-2008, 09:08 AM   #14
Tool Pants
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Join Date: May 2002
Location: San Jose
Posts: 1,889
The use of a plastic impeller is discussed in the link. Other car companies also use a plastic impeller.

There is a 996 guy on Rennlist, Robbin Sun, who replaced the pump with the one sold by Porsche, and the replacement leaked. He replaced it again with another Porsche pump, leaked again. Don't remember if Robbin ever figured out what the problem was.

This guy on rennlist says Napa sells a rebuilt pump that is a rebuilt Porsche pump, if you want to go that route. I have not seen it in person to verify if has a Porsche part number cast on it.

http://forums.rennlist.com/rennforums/showthread.php?t=390540&highlight=pump

I say go aftermarket. Now if some company would just come up with a plastic coolant tank that does not split. Porsche is on the 8th generation tank.

I talked to Marvin 2 days ago because a local owner had his Boxster in Marvin's shop for a pump replacement. Marvin said on another Boxster he had replaced the plastic tank 2 months earlier. And the customer was back because the tank split. So much for quality Porsche parts.
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