over heating

[nuguy]

I have the early 8n front mount getting over heating, tryin to figure if its the thermostat and or water pump, I figure I can take the thermostat out and test in hot water and see if it opens at 160 or so, Is there a way to to determine the condition of the water pump? ..
Ron

 

[JMOR]

(quoted from post at 16:56:41 07/17/10) I have the early 8n front mount getting over heating, tryin to figure if its the thermostat and or water pump, I figure I can take the thermostat out and test in hot water and see if it opens at 160 or so, Is there a way to to determine the condition of the water pump? ..
Ron

ith thermostat out, radiator full, top hose disconnected, start engine at speed and you ought to take a bath in a fire hose like burst of maybe 30 gallons per minute flow.

 

[nuguy]

ok, ..I took the hose off, there is no thermostat, and my belt probly has too much play in it...I'll stick one in and tighten up the fan belt..Thanks

 

[R Geiger]

Not having a thermostat will not cause it to over heat. A loose fan belt may. A plugged radiator surely will.

I like JMOR's way of checking the water pump!!!LOL

 

[Caryc]

Since no one asked the question, I will. You're not over filling the radiator are you? I ask since you don't indicate how long you've had the tractor.

 

[Bruce (VA)]

It's probably not the pump or the t-stat. The most common reason for an N to “over heat” is over filling the radiator. Only add enough fluid to cover the core. (check out tip # 24, below as well as tips 25 & 35) It is not actually over heating; it is just spewing out the excess water.

If the radiator is not overfilled, check for low coolant, a loose fan belt, debris in the radiator fins or a stuck thermostat. A bad water pump will usually squeak or leak.

The fan belt should have 1/2" of flex at the mid-point; no more, no less.

Unless you have a pusher fan, blowing out the radiator from the engine side is always a good idea.

Use 50/50 anti-freeze & distilled water as your coolant. The anti-freeze contains rust inhibitors, pump lubricant & raises the boiling point of the coolant.
50 Tips

 

[lha]

Once a year,I clean out the radiator,drain anti-freeze,remove t-stat,fill with water and vinegar,run it a while.Then I cool off,drain,flush. Assembly is reverse of removal. Don't you love it when they say that?---lha

 

[Danny in CO]

nuguy,

Since the N's don't have a temp guage, what makes you think it is overheating? Is it spewing out the overflow? If so, you most likely are overfilling the raditor as others have said. Just fill to the top of the core (about 6" down inside the raditor).

Danny

 

[nuguy]

almost boiling water and very hot gas in the tank were the indicators, I did have the level correct, But I think it was my fan belt being loose, I am now tryin to figure out the other problem so I will know for sure, its under the post topic starter wont stop

 

[36 Coupe]

I had a Model A Ford that boiled when we used it to power a cord wood saw in December. A thermostat stopped the boiling.Never say will not or never.

 

[Eriklane]

I was in a rush last winter, put on the fan belt but was not in the pulley...wondered why it was overheating 5 mins later...found out fast...