nipzero

New User
My tractor runs hot after about a half hour of mowing with my woods belly mower.
I just installed a new radiator, water pump, hoses.
Looks like I have good oil pressure...maybe the oil filter is clogged?
 
Loose fan belt? Wrong width belt? Retarded ignition timing? Cooling capacity of the new radiator? If it has shutters, are they open?
 
Have you changed out the thermostat.

Might check the temperature with one of those hand
held temperature guns to be sure of the degrees.

What coolant mix are you using, I think a 50/50 mix
of coolant/water provides the best cooling mix.

Can you take radiator cap off and see coolant moving
across the top of the radiator, if not, water pump
impeller may have come off the shaft.

If you fill radiator with water, no cap, then remove
bottom radiator hose, does the water rush out or or
just dribble out slow. If water comes out slow the
radiator may be stopped up and needs to be boiled
and rodded out.

Good luck and let us know what you find wrong,

Remember: fastest way to ruin a good engine, run
with no oil pressure, second fastest way to ruin a
good engine, let it get hot due to poor cooling
system.
 
I checked the oil filter, and it seems plugged up.
Plenty of coolant movement with the new radiator and pump, and 50/50 coolant.
Gonna order a new filter and see what happens with that.
Oh yea..she also has a fresh oil change.. but not the filter.
Thanks for the replies...
Not sure about the advanced timing issue? How to check easily?
 
Bad thermostat or maybe it does not have one at all which can make one run hot also. Or maybe you need to do a vinegar flush to get the rust and lime out of the block
 
The oil filter being clogged will not cause the B to run hot. It would have to have the block really filled with crud bad to cause it to run hot. I do not have a thermostat in any of my B's and C's and they hardly get into the green when it is 90º outside running wide open in second gear thru tall grass.
like this
 
I sure do appreciate all the replies.
Still, it remains a mystery.
The temp gauge never gets close to green.
Good oil pressure,good water flow...
I have run this tractor for 20 years and it has always had this problem when mowing with the big woods mower.
Just the way it is I suppose.
 
The oil filter does not work that way. The system works without the filter. 15% of the oil I bypassed into the filter to clean a small percentage. That oil is basically lost, only 85% is used for lube. If you have a BLOCKED filter, you actually get MORE pressure.
 
with your last statement would Probly mean that you do have a bad thermostat or the block does have a build up of crud on the outside of the sleeves internally. I personally would remove the thermostat and try it that way if it indeed has a thermostat. If it still gets hot without a thermostat I would then remove the new radiator and fill the block and head with a rust dissolver and let it set for a while and then flush with high volume clear water. A lot of water. Normally the only way you can get the B type engine hot is to run it out of water if you have a good radiator with good air flow and good thermostat.
I have a tendency of jumping the horse power, weighting them down, over tiring them and working them hard. Over heating has not been a problem.

AllisB004-vi.jpg


When I would up the horse power I did clean the inside of the block. I was pulling the 12 foot spring tooth in third gear at the time I stopped to take the picture. That engine has a 4 inch stroke along with a few other mods.

march18027-vi.jpg
 
Well,
I am not running a thermostat...and it has good circulation..the heat gauge does not even reach the green mark.
I did flush the engine before I changed out the radiator.
I am going to mow again with it soon...and will see how she runs now.
She does not seem to be running hot right now.
(fingers crossed) :)
 
Oh, I am so sorry I missed the meaning of your first sentence in your first post.

I thought when you posted (My tractor runs hot after about a half hour of mowing with my woods belly mower.) that you meant your tractor was running hot and was asking for help in figuring out why. My bad!
 

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