12-v elestric fan?

i have noticed that since it has gotten hotter my 50" 8n is sometimes hot 210 de. or i think that is hot,? and was thinking a 12-v fan could be used to help in hotter weather.
i have i new thermastadt and i believe its a 160 and flushed the radiator earlier this spring, and a new cap, that i bought without looking to see if it was a pressure cap or not, it was, so i drilled a very small hole to let off steam. so what do you guys think?

Hi

the reason that the radiator pressure cap need to be sealed is that by pressurizing the coolant the boiling point of the coolant is raised. by drilling the hole you reduced the boiling point to about 212 deg. at 4 psi its 222 deg. you might check you system for leaks. If you dont have a fan shroud -- get one and install it.

I think you ruined a radiator cap.

The system is pressurized to prevent the coolant from boiling at 212*. Now, w/ the hole in the cap, it will boil at 212*.

Anti-freeze also raises the boiling point.

Get a new cap & 50/50 coolant.

And never fully fill the radiator; just above the coils is enough.
50 Tips

I was told not over 4 pounds on the pressure cap also.

I agree with the PSI posts, but 200 is too hot unless you are working it hard. If you are working the tractor then it is not too hot but you do need a new radiator cap, make sure you can see through the fins on the radiator, moter off and shine a flash light through the grill and look for light on the fan side. Weed seed and dirt will fill the fins quickly when mowing.

(quoted from post at 20:27:20 06/14/10) I agree with the PSI posts, but 200 is too hot unless you are working it hard. If you are working the tractor then it is not too hot but you do need a new radiator cap, make sure you can see through the fins on the radiator, moter off and shine a flash light through the grill and look for light on the fan side. Weed seed and dirt will fill the fins quickly when mowing.

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I keep mine clean by blowing out with air. Hard to believe the amount crud that blows out of there.

I have some exp. with the cooking stuff and it is with big trucks. The presurized systems on the engines in a big truck actually raioses the boiling point quite a lot. It makes the 212 point, normal boiling temp 240 degrees. Plus we have a clutch on the fan to engage and disengage depending upon the Temp. So I would think the boiling temp for the flatty would be quite a lot higher than 212 if the pressure cap system is working right and the thermostat is up and ready to work right. We had to work the things out going west in the summer because of the heat and the hill climbubg etc and the Engine fan clutch was really a help I found out early that slowing down in to lower gears would give me more fan cooling with the increase in engine RPM and not put me on the side of a mountain climb letting the thing cool down. I would imagine doing that on a tractor would help it keep cool while plowing etc. My tractor experience was 50 plus yrs ago and I don t recall sny problems mowing or raking hay etc. OK nuff of my old story but I do think a good tight pressure cap with no leaks is the way for keeping the engine cool on the tractor. That fan along with a clean radiator and running in a gear that keeps the RPM fairly high is the way to go in a pulling situation. I remeber back in the day, if I would lower the pin in the clevis point on the hook up for the Mules to the breaking plow ONE HOLE, that they could get the job done with a lot less strain. It would raise the nose of the plow a little and not take as much of a bite in the ground and ease the work load for those two big ole gray Mules, Jim and Mack, Funny how some things just make you go back in time once in a while. Sorry, I just got carried away.
Devious in Humble Tx

and what would an electric fan do that the belt driven fan didn't?

clean the rad and get a WORKING 4 psi cap.

soundguy