My friend couldn't get his Z to stop dripping after replacing o-rings and gaskets several times on his waterpump, finally he took it to the dealer a couple of weeks before we were to go down to DUNEFEST in Oregon. They told him he needed a new case and 260.00 dollars later they said it was fixed. After driving down there for 9 straight hrs w/o stopping, accept for gas and a wee wee break, He unloaded and didn't even get fifteen minutes in before it started doing it again. We cleaned it up and rtv'ed it. It slowed it down enough so that it didn't ruin our trip. Has anyone else had this problem?