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SW Iowa | I want to know the answer to Mutt Boys question too. There is a bleeder in the back of the aftercooler.
Also I replaced a lot of tensioners on those engines in Rogators over the years. Make sure the fan/water pump belt is not slipping. This is of course after you get a heat gun and check the actual temp of the upper and radiator hoses.
If the temp is FAR apart, then there is a FLOW problem. Water pump, t-stat, belt slipping on water pump, plugged radiator.
If the temp is CLOSE together, then there is a CAPACITY problem. No air flow through radiator, not a large enough rad, not enough coolant, etc... An old mechanic friend taught me those sayings to remember. | |
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Rogator 5.9 cummins overheating
