3.0 V6 Faulty water pump now white smoke
I have a 92 Ranger extended cab 2 wheel drive with a 3.0. A few days ago the water pump went out and the belt came off. I stopped as soon as I realized it, it couldn't have been more than a minute or two. I got it home and found out it was the water pump, so I got a new water pump and put it on and a new thermostat. I drove it today and it seemed fine until I got in it to come home, I noticed white smoke. When I got home I checked the oil level and overflow tank for the radiator. The antifreeze in the overflow looks dirty, brownish. It was fresh antifreeze I had put in it. Also the oil was over the full line, It was almost at the full line about a week ago when I topped it off. The book stated that I needed to put sealant on the one bolt when I put the water pump back on, I put sealant on that bolt, but I don't know now if that may be my problem, I used the same thread sealant that we use for gas and water pipes, the guy at the autoparts store told me that would work. If that didn't work and didn't seal it up could that be causing the oil and antifreeze mix and white smoke or could I have done worse damage? If that could be the problem, could that be fixed by using an automotive thread sealant? Thanks for any advice on this problem.