We've got an old reliable TO35 that has been working great until yesterday when it started heating.
New radiator a few years ago.
I've been brush hogging some REALLY thick, nasty stuff which has been working the old girl really hard. But it still wouldn't go up past 210F no matter how hard it worked, for 8
hours. Then suddenly I stopped and saw a bunch of steam coming out of the overflow and the gauge read 230.
Got it cooled down, refilled the coolant, lots of circulation going by the amount of flow I can see, it's not blowing bubbles in the radiator, so I don't think it's a cracked
head or gasket. I blew out the radiator, made sure it's clean by shining a light through all the fins, everything looks good. But no matter what, even in light grass, it
steadily heats up to just below 230 with no signs of slowing. For years it has steadily run 230.
Ideas?
New radiator a few years ago.
I've been brush hogging some REALLY thick, nasty stuff which has been working the old girl really hard. But it still wouldn't go up past 210F no matter how hard it worked, for 8
hours. Then suddenly I stopped and saw a bunch of steam coming out of the overflow and the gauge read 230.
Got it cooled down, refilled the coolant, lots of circulation going by the amount of flow I can see, it's not blowing bubbles in the radiator, so I don't think it's a cracked
head or gasket. I blew out the radiator, made sure it's clean by shining a light through all the fins, everything looks good. But no matter what, even in light grass, it
steadily heats up to just below 230 with no signs of slowing. For years it has steadily run 230.
Ideas?