OK..well, technically, a 50/50 mix of ethylene glycol will not boil until 223-F…. but, perhaps you meant that if the “Pressure” is correct….I.E. the radiator cap is rated at (example) 13 psi…it actually HOLDS 13 psi. Coolant will require higher than ordinary boiling points if under pressure… for every 1 psi over atmosphere the boiling point will increase by approx 3-degrees F.
No I meant exactly what I said.
No or little coolant flow through the radiator. Bad water pump, plugged radiator tubes, or stuck thermostat.
Tstat is new so let's not consider it. Can I assume that water pump works based on the fact that coolant is coming through the bottom pipe? The radiator is not in the best shape but should I see the radiator tubes to be hotter than fins on the thermal image (I am thinking to bring it to a shop to rod out but don't want to spend money if it's not strictly necessary)?
Try this first. Could be a cheap solution.
prestone.com
I have had overheating problems with both a bx22 and a bx2200 tried a lot of things and still not really satisfied with the results but my best change in the system was to take a fan from a BX 2680 which is a five blade fan turn it down slightly and put that in air flow has increased and a cooling is somewhat better thank you
Hi there- new to the forum- I have had a g5200 for 20years and struggled with heating temp for a long time, it slowly got worse. after changing everything you have mentioned and reconditioning the radiator, it turned out to be the water pump. On first inspection of water pump removed the cast iron impellor and it looked ok, however , looking closely it had eroded from the center of of the shaft. I changed the pump and it now runs great. By the way it is also fitted with a larger a 54" deck. I hope this helps many people with heating/ cooling problems on these little tractors.
