I have a belt driven impeller raw water pump. The bearing was shot and it was in poor shape so I had to replace it. The new pump is identical theoretically, but it seems to be pumping more water. All the hoses were leaking and the endplate for the heat exchanger are all leaking. I can tightened the hose clamps and that took care of most of it, but I can't get the heat exchanger endplate to stop leaking. The boats has only been run a few times in the last several months because a house repair project has stolen the summer from us. What's going on? Is it possible I have a clog in the raw water system building up the pressure? How do I find/get rid of it?