mine has been leaking anti-freeze out of the water pump, i have already replaced the impellar cover o-ring and it did not take care of it, i think it is coming out of the shaft seal, ordered one today will let you if it takes cane of it , anyone else had this problem, also my brothers z was making a ticking sound ended up being streched timing chain

 

my z is leaking too....and i changed the cover o-ring like u and it did no good....when u change out that shaft seal, tell me how it goes

 

How did you know that the timing chain was streched? what did it sound like? also it is a common problem with the shaft seal you should add some gasket maker to it when you put it back together.

 

on the timing chain it was making a loud ticking sound when it was idling, when you would rev it up I couldnt hear it but it was very noticible whin idling