I've got a carbureted 96 VP 5.7 and the old water pump started to leak so I replaced it with a new GLM 15201. After getting it back together I still have a leak. At first I thought it was the hose but once I got in a very uncomfortable position to find the source, waters coming out of the weep hole-no doubt about it. I've replaced dozens of water pumps over the years without any issues so I'm very surprised. Anyone else heard of any issues like this?