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Case Tractors Discussion Forum
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VAC Operating Temperature

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Gary Cash

09-08-2007 23:32:16




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I just replaced my temperature gauge and found that it reads about 200 degrees during light duty operation on a 90 degree day. What would be normal? My old gauge never worked properly and never read above 110 degrees.




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mikefromiowa

09-11-2007 05:43:33




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 Re: VAC Operating Temperature in reply to Gary Cash, 09-08-2007 23:32:16  
Mine never had a thermostat in it. temp never moved. replaced the gauge, same thing. installed a thermostat and now it never gets over 160 running a 60" belly mower thru tall grass.



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'53 VAI Guy

09-10-2007 20:02:56




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 Re: VAC Operating Temperature in reply to Gary Cash, 09-08-2007 23:32:16  
My 53 VAI runs between 160 on cool days to 180 on 90 degree days. I mow tall fields using a 5 foot brush hog. 200 is a bit warm, try cleaning the radiator, then check the thermostat. If your wife doesn't mind you using her kitchen utensils (or even if she does), put the thermostat in a pot of water and heat it until it begins to open. Check the temperature on the thermometer to see if it is opening at the proper temp. Replace if needed. Good Luck.

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GEOMO

09-10-2007 07:59:15




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 Re: VAC Operating Temperature in reply to Gary Cash, 09-08-2007 23:32:16  
I REPLACED THE GUAGE ON MY VAC. IT NEVER MOVES. I GUESS I AM GOING TO HAVE TO PUT IN A THERMOSTAT.



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Paul f

09-09-2007 06:38:18




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 Re: VAC Operating Temperature in reply to Gary Cash, 09-08-2007 23:32:16  
The parts manual specifies a 148-153 degree thermostat for gas VACs Low cost fuel had a 180. 200 may be a bit warm but the radiator is 50 years old and probably partly pugged as well as rust/crud in the block. As long as you don't boil off your water (unpressurized system) probably not going to kill it. Would hurt to try a flushing job ans see if it cools a bit better.



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Gary Cash

09-10-2007 23:27:04




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 Re: VAC Operating Temperature in reply to Paul f, 09-09-2007 06:38:18  
Thanks guys. I'll take a look at the cooling system to see where the problem might lay.



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