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Farmall & IHC Tractors Discussion Forum
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cant get pully off!!!! PLEASE help!

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cbooe

10-07-2004 17:59:34




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alright. im restoring a stuck super M farmall. i removed the engine adn everything else on it except now im trying to remove the timing cover so i can remove the crank and cam. well i can not get that pully not off for the life of me! i have tried everything. i have a giant socket to fit it but i have ot use a pipe wrench as the wrench to turn the socket. but anyway i have heated it up wihta propane torche, afraid to get it too hot, i have had a 2 ft pry bar on it jumping up and down on it and nothing. am i missing something. i turn it counter clockwise right? nto left handed thread? im soo lost. why is this sucker stuck on there soo good? as soon as i get this done i can press out the pistons and send the block in and start the rebuild. this has been my MAJOR setback! any help would be GREATLY appreciated. thanks alot!

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Novel Idea Guy

10-08-2004 07:01:28




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 Re: cant get pully off!!!! PLEASE help! in reply to cbooe, 10-07-2004 17:59:34  
I'm guessing "propane torch" means one of those things you use to unfreeze pipes, roast weenies and light cigars!!!

You need an Oxy-MAPP, or Oxy-acetylene torch to get the nut red hot. Propane torches are toys in comparison.

Another key to getting the nut off is IMPACT. Either a hammer and cold chisel, or an air-impact wrench. The hammering action will jar the nut loose.



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LarryM

10-08-2004 04:56:03




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 Re: cant get pully off!!!! PLEASE help! in reply to cbooe, 10-07-2004 17:59:34  
I had one like that recently and the OXY-Acetylene torch combined with just a 1/2 inch air wrench did quite nicely. Just heat on the nut. Careful with the pulley. They break if you get to rough with them... or so I have been told :-)



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El Toro

10-08-2004 04:36:48




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 Re: cant get pully off!!!! PLEASE help! in reply to cbooe, 10-07-2004 17:59:34  
If you haven't rounded off the nut, use a 6 point
socket with a 3/4 air impact wrench after heating the nut. Hal



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MagMan

10-08-2004 03:08:32




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 Re: cant get pully off!!!! PLEASE help! in reply to cbooe, 10-07-2004 17:59:34  
WOW! I just pulled two apart from junk yard tractors that just about fell of in my hand. Yes turn it CCW you could go to your local hardware and look for I think its map gas its a little hotter than propane. Or you can try that chissel just be carefull not to hurt that crank. Or you can cut it with a dremel and diamond wheel . And find a new nut at the dealer or junk yard . Just a few thoughts . P.S. There are also parts places that will loan out tools some for free. Auto zone, advance auto, more, You could get the 3/4" set and might be eiser for you . JON.

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El Toro

10-07-2004 18:55:45




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 Re: cant get pully off!!!! PLEASE help! in reply to cbooe, 10-07-2004 17:59:34  
Hi, You need an acetylene/oxygen torch to heat that damper pulley. Drive metal wedges on each side of the pulley while heating it. Use a 3-legged gear puller once you move the pulley out far enough to hook the puller on the outer edges
of the pulley. Keep heating and tightening the puller. Small steel wedges used for splitting wood would probably work to get it started. Good Luck, Hal



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Bob M

10-07-2004 18:48:38




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 Re: cant get pully off!!!! PLEASE help! in reply to cbooe, 10-07-2004 17:59:34  
The crank pulley nut is a standard right hand thread. Ordinarily it will unscrew without too much effort - though you need a 2-1/2" socket to get at it as you have discovered.

Suggest try heating it again. Use an acetylene torch and wrap the back side of the pulley with a wet towel to protect the seal area. Heat the nut so it's just beginning to turn red then get the socket on as quick as possible - it WILL loosen up!

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F-Dean

10-07-2004 18:05:56




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 Re: cant get pully off!!!! PLEASE help! in reply to cbooe, 10-07-2004 17:59:34  
Not too familiar with a M, but on F-Series tractors I would recommend a cold chisel and a hammer to loosen the nut.



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Allan in NE

10-07-2004 19:21:15




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 Re: cant get pully off!!!! PLEASE help! in reply to F-Dean, 10-07-2004 18:05:56  
Atta Boy, Dean!

There's a guy who has been there and done that.

Allan



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Gauger

10-08-2004 04:56:11




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 Re: cant get pully off!!!! PLEASE help! in reply to Allan in NE, 10-07-2004 19:21:15  
Chisel and hammer never fails



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