Welcome! Log In Create A New Profile
Celebrating 10 years of PedrosBoard!
Tire Rack: Revolutionizing tire buying since 1979.
Buying through this link, gets PB a donation.

Products for your Boxster, Cayman and Carrera.

Message: I have a theory on water pumps ....

Changed By: Pedro (Odessa, FL)
Change Date: July 10, 2012 09:58AM

I have a theory on water pumps ....
... that fail prematurely.
It also involves the coolant reservoir.
I've noted that most of those cases had air in their system due to a bad cap or air was not purged completely the previous time.
When an air pocket hits the impeller of the water pump it runs without lubrication which can cause premature failure.
An air pocket at the pun pump will also make the impeller cavitate which can also cause it to fail prematurelly.
I've jyet to replace a water pump in either of my Boxsters.
One had 80K when I sold it with the original pump and the other one had 207K miles when I replaced the engine with the original pump.
I always hear people saying that they topped off their coolant. If you have to top it off you either had some air in the system or you have a coolant leak.
In almost 15 years I've never had to add any coolant to my car as a top off.
Happy Boxstering
Pedro
Changed By: Pedro (Odessa, FL)
Change Date: July 10, 2012 07:34AM

I have a theory on water pumps ....
... that fácfail prematurely.
It also involves the coolant reservoir.
I've noted that most of those cases had air in their system due to a bad cap or air was not purged completely the previous time.
When an air pocket hits the impeller of the water pump it runs without lubrication which can cause premature failure.
An air pocket at the pun will also make the impeller cavitate which can also cause it to fail prematurelly.
I've jet to replace a water pump in either of my Boxsters.
One had 80K when I sold it with the original pump and the other one had 207K miles when I replaced the engine with the original pump.
I always hear people saying that they topped off their coolant. If you have to top it off you either had some air in the system or you have a coolant leak.
In almost 15 years I've never had to add any coolant to my car as a top off.
Happy Boxstering
Pedro

Original Message

Author: Pedro (Odessa, FL)
Date: July 09, 2012 11:53PM

I have a theory on water pumps ....
... that fácil prematurely.
It also involves the coolant reservoir.
I've noted that most of those cases had air in their system due to a bad cap or air was not purged completely the previous time.
When an air pocket hits the impeller of the water pump it runs without lubrication which can cause premature failure.
An air pocket at the pun will also make the impeller cavitate which can also cause it to fail prematurelly.
I've jet to replace a water pump in either of my Boxsters.
One had 80K when I sold it with the original pump and the other one had 207K miles when I replaced the engine with the original pump.
I always hear people saying that they topped off their coolant. If you have to top it off you either had some air in the system or you have a coolant leak.
In almost 15 years I've never had to add any coolant to my car as a top off.
Happy Boxstering
Pedro