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Overheating 8N

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Peter O'Brien

10-01-1998 09:03:45




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How can I keep my 8N from overheating when using light duty 60 inch bushhog? Can I buy an oversized radiator?




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Alan

10-02-1998 18:02:43




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 Re: Overheating 8N in reply to Peter O'Brien, 10-01-1998 09:03:45  

pete,
I bet your radiator is clogged. Dont't forget you tractor is probable close to 50 years old. Imagine a truck or car with 50 years of use.



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E.Allison

10-01-1998 11:53:24




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 Re: Overheating 8N in reply to Peter O'Brien, 10-01-1998 09:03:45  
Is your fan shroud in place. They are often removed. EEA



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TimK

10-01-1998 09:47:07




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 Re: Overheating 8N in reply to Peter O'Brien, 10-01-1998 09:03:45  
You should not need an oversized radiator, something else is wrong. I guess I would start with a new thermostat. If that doesn't do it check the radiator for clogs (probably have to take it to your friendly radiator shop for that) including making sure the cap holds pressure and flushing out the engine. If that doesnt do it, replace the water pump since it could be clogged or could have some broken impellers. I have used my N on some very hot days doing heavy work where I've even killed the engine a couple of times, but no overheating.

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Bob Gaddis

10-01-1998 09:54:47




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 Re: Re: Overheating 8N in reply to TimK, 10-01-1998 09:47:07  
Make sure your water pump is working, that the block's water jacket is not clogged up, that your oil pump is pumping, that your radiator is not clogged up, that your fan is turning, and that your engine timing is set right and advance is working right. If the timing is not adjusted right, it can cause overheating.
It would be best to take your radiator to a radiator shop and have it flow-tested. My son had a Mazda pickup that overheated and someone told him it was a head-gasket. So he pulled the head and put a new gasket in, only to find the problem unsolved. I took the radiator to the shop, even though it seemed to have good flow, because of water motion as viewed through the fill-neck. It was 75% clogged in the bottom. It was so bad, it could not be rodded out and we had to buy new one. My 8N had a similar problem but it was only about 35% clogged. I had it rodded out and resoldered and it works fine.

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JerryU

10-02-1998 04:30:57




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 Re: Re: Re: Overheating 8N in reply to Bob Gaddis, 10-01-1998 09:54:47  
I agree with Bob. But beware!!! I had problems with my 9N overheating. I pulled the radiator, took it to a radiator shop that was recommended to my by my brother in law. I picked the radiator up after it had been cleaned and painted (paint still wet) put it in and it didn't help. After trying a bunch of other stuff, came back to the radiator and pulled it again and took it to another shop and had a new core put in. The one that had been "cleaned" was plugged. I got a nice paint job the first time around. Moral #1 - know who you are taking it to. Moral #2 - for what I spent recoring it, I could have purchased an after market. I would have done this had I checked things out. Mine is a working tractor so the after market wouldn't have bothered me as opposed to keeping it original for show.

Just my thoughts.

PS - you 9N owners might want to consider replacing the pusher fan with a puller and shroud, which later came standard on the 8N's

JerryU

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Milkman

10-01-1998 22:09:35




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 Re: Re: Re: Overheating 8N in reply to Bob Gaddis, 10-01-1998 09:54:47  

Good advice. One thing I would like to ad, when you get that radiator nice and clean, do not use tap water! Drinking water usually has lots of minerals in it, which bond to your rad core. this is what clogs them. Use only distilled water like mom used in her iron, less than a buck a gallon. Milkman



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