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Farmall & IHC Tractors Discussion Forum
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47 H Temp Probe Nut Broke off in Head

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AH64D

03-11-2006 18:47:02




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Well I messed up. After two months of applying penetrating oil to the Temperature probe receiving nut, bolt, sleeve or whatever you call it I finally cut the wire and put a 7/8 deep will socket on it and twisted the darn thing off flush with the head. After the probe shout out and hit me in the chest, follow by about a gallon of water, I realized I only needed to remove the jam nut to pull out the probe. I would appreciate any suggestions on how to remove the remainder of the threads from the head. Thanks for the help.

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Tom Windsor

03-11-2006 20:33:08




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 Re: 47 H Temp Probe Nut Broke off in Head in reply to AH64D, 03-11-2006 18:47:02  
I believe in heat. It works...most of the time...sometimes it does not. I did the same thing with with an H twice. Once the heat got it and the other time it did not. I would do the suggestons that have already come forward but trying heat first...then sawing the sleeve second...then collaps it...as i recall, it will be difficult to get a dremmel in there...I took a hacksaw blade and ground it down to make it narrower and used that.

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Ol Chief

03-11-2006 19:30:28




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 Re: 47 H Temp Probe Nut Broke off in Head in reply to AH64D, 03-11-2006 18:47:02  
THERE MAY BE A COUPLE OF SOLUTIONS TO THIS PROBLEM.I think the one most likely to work is heat. Take an Oxy -Acet torch w/a moderatelysmall brazing tip. Carefully and quickly heat down insidethe brokenpart until the threaded portion is red hot and immediately back out.Since the head has great mass it will not expand as quickly as your small part.Therefore that part should attempt to swell but will be unable to do so.When the mass has cooled,your small part will shrink to a smaller diameter than original.You should be able ro insert some sharp four sided tool such as a screwdriver and back out the broken well. Do not attempt to use an eze- out.In my opinion they are only made to sell not to function.

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Wayne Swenson

03-11-2006 18:55:56




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 Re: 47 H Temp Probe Nut Broke off in Head in reply to AH64D, 03-11-2006 18:47:02  
Take a Dremel tool & cut through the adapter until reaching the threads. Repeat in 2-3 places. Take a small chisel or punch & collapse the shell inward. No Dremel tool? This is a great excuse to get one!
Oh--you can also use a hacksaw blade (if it will slide in the opening).
Good luck.



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AH64D

03-11-2006 19:11:39




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 Re: 47 H Temp Probe Nut Broke off in Head in reply to Wayne Swenson, 03-11-2006 18:55:56  
Good ideas. I just need to make sure I don’t punch it inside.



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ryan from WI

03-11-2006 18:53:54




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 Re: 47 H Temp Probe Nut Broke off in Head in reply to AH64D, 03-11-2006 18:47:02  
You could weld somthing on to it like a bolt or metal rod,or drill and tap it out. Not positive what you are talking about I get the idea.



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