Engine Overheating Diesel

[ttw]

My 2006 Walker MDDGHS with a 20 HP Kubota diesel overheats after 1 hour of heavy use. Coolant level is full electric cooling fans are working and screens/radiator not clogged. anyone got an idea?

 

[reynoldston]

If the thermostat is opening good and the radiator isn't partially plugged and the fan and water pump is all working proper I would suspect head gaskets.

 

[EngineMan]

if it is head gasket the coolant level would not be full run it without thermostat in and see if it over heats.

 

[ttw]

Thanks for the suggestions. I found a temp sensor on the radiator that turns the fan on a higher speed @ 205 degrees, it was unplugged(duh). Thanks

 

[EngineMan]

There you are, job done..:thumbsup: