You might be able to check the water pump. Fill the radiator to the top then start the car. If the water pump is bad the water will not move. If the water level goes down then the water pump is working. I'm not sure if this will work on a 240 but it worked on my camaro, and my wifes millenia.
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[img]webkit-fake-url://59a75c29-2baa-4768-85b0-a8297a03874c/imagejpeg[/img]Fuck senior honda/Bob