Hey. I'm new to this, but, I just bought my second official car. A Mazda MX3. It has the 1.6l 4cyl. I bought it with the thought that the water pump needed replaced. We took the timing belt cover off and looked at the water pump and it seemed fine. We then looked at the spark plugs and found water in them. We replaced the spark plugs and drained the gas tank. And we eventually got the car started. It now has a problem with over heating. We are going to change the water pump and thermostat. I was just wondering if there could be some really bad wear in the engine with the fact that water has been through it. We are going to change all the head gaskets just in case in the near future. If anyone could give me any advice, it would be really helpful.