I replaced the wp and oil cooler (both twice) and I still have my leak, I put in some dye and the leak is coming from around the wp and drains right onto the crank pulley. Is there anything else around the wp that could leak?

2011 XK NA

 

You've got to make certain the metal gaskets on the pump are properly seated and sealed. It wouldn't be the first time a mechanic has failed to do this leading to another pump R&R due to leaks.

 

Did you upgrade AJ812141 to the new version C2Z28467 (upgraded water pipe)? Very often the small narrow tube that goes from the upgraded water pipe into the front of the water pump bleed port (push and pull) does not seal correctly and can damage the water pump where it connects. Are you able to get a good look at the front of your water pump to see? It's been known to be problematic if not installed carefully and correctly. It's very fragile.

 

Boca, that part number is for a coolant hose, did you mean C2Z18658?

If so, that is the one I got.

 

No... I was referring to another pipe. C2Z18658 is the water pump outlet pipe on the back. That should be changed when you are doing the water pump replacement, however I remember reading how it must be positioned/turned a certain way when connecting to form a proper seal. It's bad enough we have all these cheap plastic parts to deal with... and on top of everything, careful installation must be adhered to in order to get a perfect seal.

 

Coolant pipe installed wrong behind waterpump, this is a very common issue.
I recommend getting the upgraded aluminum part from uroparts