Another Running HOT Thread

[Stumper]

I will add my personal experience. I replaced the original 361 with a new 400 in my Charger, and I needed a drivers side exit for the lower rad hose so I bought a Mancini aluminum pump housing and high volume pump. Everything else in the cooling system was the same right down to the thermostat. My car acted like yours and would overheat and puke coolant in less than 10 miles. I pulled it apart and replaced the pump with the original from the 361. So far I have driven the car three times and the temperature is back in the normal range. I am not here to argue thermodynamic theory. I have no idea why the high volume pump did not work. I am posting from actual experience.

Does make me wonder… I think I had a few episodes of the tank overflowing before I replaced the pump but not to this extent….

 

[Bird 426]

I have always liked the Flowkooler water pump. Plus, flushing the cooling system wouldn't clean the radiator cores if plugged. Have a radiator shop open it up and rod the cores or recore the radiator. If you want perfect orginal, call Bob at Glen Ray. This would be a good time to recore the heater, it can help cool your engine too.