I have a 2004 700 that has been putting coolant into the oil. I replaced the water pump seal and impeller. The seal went in no problem, I changed oil and filled the cooling system. I have put less than 25 miles on it. It looks like it is still loosing coolant to the crank case. It starts and runs fine. No smoke from the tail pipe. Am I looking at a head gasket? A buddy called a shop owner. He said these are known for the water pump shaft being worn and seal replacement wont fix the problem. He said he heard there was a kit to install to fix the problem without having to replace the shaft. He has never done one and said he did not have the tool to do it. Has anyone heard of this before? Any help would be appreciated. Not sure if its time to get rid of the machine or fix it.