My patriot 3126 engine temperature reaches 210 to 212 on a long pull despite selecting lower gears. Have tested the fan speed, replaced the radiator, thermostat, and wax valve for the fan. The engine will pull a higher gear, but  then it heats up.   Are these normal temperatures for this engine?  Do other 3126 engines have similar issues?  Any help is appreciated. Bob Mielenz 541 253-6240