Overheating engine shutdown

[VisionIsle]

Volvo AQ240A/270<br />This is an update to my previos email about my Carver shutting down from an overheating problem in the South Bay.<br />Back in port,<br />I Changed the impeller, old one looked used but still good.<br />I pulled the plugs, no water or fouling. Plugs look clean (changed them about 2 months ago). Oil in valve colver and hose coming from back of carburator all seem normal, no milky oil.<br /><br />What else can I check to make sure that the head gasket isnt blown or other internal damage from the overheat shutdown?

 

[Laddies]

Re: Overheating engine shutdown

Have you cked the thermostat? I am not a volvo guy the person you need is don. if the engine has a heat exchanger on it that could also be plugged

 

[VisionIsle]

Re: Overheating engine shutdown

I have not checked the thermostat. I do have a IR gun that is reading the same temperature as the temp guage. It is running normal about 165 and is not overheating anymore. I think I picked up something in the water intake that caused it to run hot and shutdown. Just dont know what else may go wrong when I go out again.

 

[Don S]

Re: Overheating engine shutdown

. Just dont know what else may go wrong when I go out again.<br />

If everything is running normal, take it out and run it. <br />I do have a method for checking if things will go wrong in the future, but it seems to have lost it's accuracy, so I had to send it to the shop for calibration.<br /><br />

<br /><br />EDIT: Danged, really need to trim them eyebrows

 

[rodbolt]

Re: Overheating engine shutdown

must be the bad gas, my crytal ball failed last week too.<br />metcal lab says its just dead and the parts are NLA.<br /> maybe ill find one on ebay.