2012 case sr250 starting overheating when running brush hog, I am getting some combustion gas in cooling system when it is warm, is this a common problem on these? Guessing head gasket or head issue, has 1650hrs anyone have and insight I haven’t been able to find much on these
From my experience head gasket failure on those engines isn't common. Have you checked the EGR cooler?
I have not looked into that,
Is there any good ways to test the cooler?
I doubt you have a head gasket issue.
Put air pressure to the cooler and did not seem to lose any, could it be the egr valve itself?