there are 6 bolts in the timing cover & water pump that have to be sealed up , I use teflon tape , there are the 4 long bolts in the top corners of the pump & two more through the timing cover down low that also are open into the water jacket , if you just replaced the water pump you would not have removed the lower ones , just remove 1 bolt a ta time & tape it , the 2 lower water pump bolts go into the timing chain & can leak oil also
