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Case Tractors Discussion Forum
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How hot is too hot.

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Dr Cy Kosis

10-31-2004 06:38:59




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I went to a threshing yesterday and got the opportunity to belt the '29 L up to the thresher and let 'er bark for a bit. After getting it under load she was revving up and down the governor and sputtering. I richened it up till she leveled out under the load.

After about 20 mins under load she began making a little steam so I got off there and let another machine take over.

I know my fan belt is really loose and thats what I think the main problem is. Theres also the chance that I was still a little lean on the needle. Since these machines are non pressureized cooling systems, they'll boil at much lower temps. I know that since water takes 970 BTUs/Lb to flash to steam, the making of steam itself has a great cooling effect. Assuming that you just keep the radiator full even though it is making some steam are you still overheating the engine to where it could do any damage?

Since I've heard stories about how they sometimes keept water at both ends of the field to top off the radiators during plowing, I'd assume boil over was pretty common. I just don't know what the old machines can really take and theres no sense in hurting it having fun.

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C. Amick

11-01-2004 09:49:37




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 Re: How hot is too hot. in reply to Dr Cy Kosis, 10-31-2004 06:38:59  
You may have rust build up in the engine block. I took an Case SC engine apart that had rust almost half way up on the No. 4 cylinder sleeve.



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George G

10-31-2004 07:35:56




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 Re: How hot is too hot. in reply to Dr Cy Kosis, 10-31-2004 06:38:59  
I had the same problem with my 30 C. I bought a new leather belt from McMaster-Carr. They claimed that this belt would'nt stretch. Supposed to have some kind of binder in it to prevent stretching. Well, it stretched. Bought another belt (not leather). Hasn't overheated since. Course I also pulled out the softplugs and cleaned all the trash out of the water jacket. Amazing how much trash was in there. Got new softplugs from auto parts store. I don't know how hot is too hot. But I think if you have water/antifreeze and it starts to steam, you are probably too hot. With my C. When it started to steam, it was'nt far from boiling.

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Brian in Ohio

10-31-2004 07:07:18




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 Re: How hot is too hot. in reply to Dr Cy Kosis, 10-31-2004 06:38:59  
I kinda had a similar problem with mine. Tightening the fan fan cured most of it. Do you have a new core in yours, or did u resurrect an old one. Could it be something is plugged up?



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Dr Cy Kosis

10-31-2004 07:16:05




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 Re: How hot is too hot. in reply to Brian in Ohio, 10-31-2004 07:07:18  
Its an old core. Unfortuneatly its not an original round tube core like my C has. Its been worked over about a year ago.



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Brian in Ohio

10-31-2004 10:04:11




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 Re: How hot is too hot. in reply to Dr Cy Kosis, 10-31-2004 07:16:05  
I don't have a round tube core in mine either. I'd suggest trying to flush everything out real well, and make sure you don't have something plugged up.



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Bob in Australia

10-31-2004 14:41:08




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 Re: How hot is too hot. in reply to Brian in Ohio, 10-31-2004 10:04:11  
We used to run Ls,Cs and LAs for serious farming work. We tried to run them just under boiling (say 190-200F) on kerosine.

I still have Dad's C and Uncle's LA (and a bought in L and LA) but they only get light work now and never on kerosine (can't get it here anymore)



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