I have a 1987 Honda CRX 1.5 carbonated motor and i just changed out the thermostat and the over flow is filling past the point and its steaming like crazy. I checked all the hoses and they all seem to be fine, I don't know whats the next step i should do. The exhaust is crappy, loose and not properly put on, and i think the heads are messed up. It runs good not much weird noises or anything just over flow filling up so much and steaming the car really bad, if i drive to much it will over heat cause there will be no more coolant. I put a new carborator and cleaned it up the best i can but cant seem to find a reason.