Posted by MarkB_MI on August 28, 2020 at 05:42:10 from (174.230.4.158):
In Reply to: Re: Explain this posted by Traditional Farmer on August 28, 2020 at 04:09:56:
> Maybe if its a newer tractor I don't run them but most of my older tractors I can run with the cap loose and 0 lbs pressure, none will push water by a 7 lb cap and he said a lot of water was coming from the radiator so a lot of water isn't just a little being pushed out for expansion.Water may have been coming from around the water pump shaft hard to tell where water is coming from with all the steam.I'm betting his problem is going to show up again.
Based on the original post, I assume the tank is detachable from the radiator core, and pressure was sufficient to open a gap between the two.
If you fill any of your tractors to the filler neck, the radiator is going to overflow. That's the nature of water: it expands when it's heated. And since water is relatively incompressible, if the radiator cap can't release something else is going to give. If not the radiator, it will be a hose or gasket somewhere. Now I don't think Stan overfilled his radiator, but even if it's not full it needs to vent as the coolant warms and expands. And if it doesn't vent the displaced air in the tank, the pressure will rise until either the coolant stops expanding or something blows.
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