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50 B operating temp

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Tom in MICH

08-27-2001 07:34:06




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Mornin, This weekend I replaced the temp gauge on my B(original didn't work). The shop manual says that an all fuel should run above 180deg. Mine however is a gas and missing the shutters. After running for aprox half an hour with a towel over the rad, it only got to about 150 or so.About half that time was driving it. The system is full with water and anti-freeze. Is this normall? I just rebuilt the carb and am having some trouble setting the idle. Seems to pop a little at idle and under some uphill load. I was thinking this was do to it not warming up fully. Any thoughts would be appreciated.

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Craig

08-28-2001 19:22:47




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 Re: 50 B operating temp in reply to Tom in MICH, 08-27-2001 07:34:06  
I have a 1950 B. I have the shutters working. When using the sickle mower it takes a long time to get up to 180-190 degrees with the shutters closed. I even ran a baler and only slightly opened the shutters. If I open the shutters more the temperature drops right off.



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Russ

08-28-2001 17:46:19




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 Re: 50 B operating temp in reply to Tom in MICH, 08-27-2001 07:34:06  
John Deeres without water pumps run cool, but put that tractor on on 2-14 plow and I assure you will see 190 deg. plus. Only severe work will bring up the temp on a John Deere B.



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Fudd

08-27-2001 21:18:21




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 Re: 50 B operating temp in reply to Tom in MICH, 08-27-2001 07:34:06  
I have a 53, 50 and Sat. it was over 80 and I mowed for 3 1/2 Hrs. and I don't think it ever got over 150. I think they just run cool.



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Clyde Scott

08-27-2001 10:04:29




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 Re: 50 B operating temp in reply to Tom in MICH, 08-27-2001 07:34:06  
Tom:
I think Don and Chuck both are correct on the carb problem. One added comment on Chucks thoughts reguarding the operating temp. Remember, Todays formula of anti-freeze/coolant was not around when the books were written on these old gals. That may be the reason she runs cooler, Which is a good thing! I have three B's and all run cooler then the 180 degrees in the book. I, however, do not run them under load. Good luck and enjoy your B.
Clyde scott - Moultrie, GA.

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Chuck

08-27-2001 08:25:17




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 Re: 50 B operating temp in reply to Tom in MICH, 08-27-2001 07:34:06  
your carb is still clogged on the idle side and unless you pulled the nozzle and cleaned this area your high speed is clogged. Cleaning a carb is an extensive process on these tractors, you have to pull all the plug and run wire, preferrably the right size drill bit. There is a hidden passage that is seldom cleaned. Tear it back down and consult Robert's carburator site and you'll see what I'm referring to. With regards to the temp, have had models run on the colder side, had a 50 B, underload would peg the temp gauge, everything was clear..just keep good oil and about a 50/50 mixture of coolant/antifreeze. I prefer they run on the colder side.

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Don

08-27-2001 08:04:03




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 Re: 50 B operating temp in reply to Tom in MICH, 08-27-2001 07:34:06  
I have a 1948 B Gas tractor with shutters. It takes quite a while for it to reach 180 deg with the shutters closed. The B is used mostly for light work. I think in heavy use it would warm up much quicker. Even before it reaches 180 deg it doesn't seem to affect the running of the engine. You may still have something plugged in the carburetor.



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