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Massey Harris & Massey Ferguson Tractors Discussion Forum
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Bummer Pulley is off but Damaged Crank Pulley!

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Willy-N

08-09-2005 14:48:25




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Just pulled the front axle, not that hard and removed the Crank Shaft Pulley. Real Bummer at one time it looks like a key was sheared and the pulley spun loose. Then they put a shim between the Crank and Pulley and that lasted a while till it wore loose. Now the pulley spun again and damaged the tip on the crank and also the pulley! This is to much money of a repair to do and would run over a $1,000.00 to replace the crank & pulley in parts alone or maybe cheaper with used parts but I have a good running MF 135 allready. So I guess I tried to save it and will have to part it out! I will just have to pull the parts I think I might need for mine later like the power steering pump, steering cylinders, transmission and rear end assembley whole and sell the rest of it. Depressing because it was a good running tractor except for the wobble in the pulley! Can't afford to repair it back to correct again just to loose more money on it. Mark H.

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Jerry/MT

08-10-2005 21:20:00




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 Re: Bummer Pulley is off but Damaged Crank Pulley in reply to Willy-N, 08-09-2005 14:48:25  
Sorry to hear about your probem, Mark. But that end of the crankshaft is very lightly loaded, just the torque to drive the fan, alternator and water pump, etc. Check a machine shop and see what they can do for you because it should be repairable in that area. As someon else suggested, maybe building up the pulley with weld and redrilling the hole to the new size could do it. Hate to see a good machine get parted for a problem like this. Good Luck.

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Willy-N

08-13-2005 11:48:02




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 Re: Bummer Pulley is off but Damaged Crank Pulley in reply to Jerry/MT, 08-10-2005 21:20:00  
Just back from a 3 day fire I was on. The crank shaft is realy not damaged much on the end. Where the pulley spun some it just wore a slight indent into it back away from the end. The front is still flat and bolt hole is OK. The alum cover is find and the seal was not damaged at all. The pulley could be bolted back on if a spacer and a sholderd bolt used to hold it flush and straite. Problem was the old bolt did not pull the pulley tight against it so it was able to spin. Yes if it is used to only drive the fan belt it would be fine but if it is used to drive a front pump it might be a different story. Mark H.

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Jerry/MT

08-14-2005 14:42:10




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 Re: Bummer Pulley is off but Damaged Crank Pulley in reply to Willy-N, 08-13-2005 11:48:02  
Mark,
Maybe I just don't understand the damage, but if the crank isn't damaged much, can't you just get the pulley repaired (weld the hole up and rebore it to fit the crank) with a new keyway and put 'er back together? The key/keyway will take the torque loads from the accessories into the crankshaft itself.



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Willy-N

08-14-2005 19:19:58




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 Re: Bummer Pulley is off but Damaged Crank Pulley in reply to Jerry/MT, 08-14-2005 14:42:10  
I need to remove the complete axle & radiator to get a better view and acesss to the crank end first. I just slid my axle far enounght to get the socket in and remove the pulley. I need to put my other tractor back together and parts should be here monday. Then I can use my boom on it to lift and move things around to do the job right. Mark H.



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jeinsc

08-10-2005 11:34:16




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 Re: Bummer Pulley is off but Damaged Crank Pulley in reply to Willy-N, 08-09-2005 14:48:25  
You say the crank and pulley is bad.Cant hurt it any more,have someone put a spot of weld on it. Be sure to put the ground cable of the welder onto the pulley. Dont run welding current thru
crank bearings.Jerry



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Our Farmer

08-09-2005 17:01:28




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 Re: Bummer Pulley is off but Damaged Crank Pulley in reply to Willy-N, 08-09-2005 14:48:25  
If you have the time to do the labor to split the tractor and pull the crank, check into having a good machine shop build up and turn down the pulley end of the crank. Probably less than $100.



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Willy-N

08-09-2005 17:26:57




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 Re: Bummer Pulley is off but Damaged Crank Pulley in reply to Our Farmer, 08-09-2005 17:01:28  
I have the time since I am sorta un-employed unless I go out on a fire localy with my Tender under Contract with the USFS. I am going to split it to start off with then dig into the engine further since it is only labor and I have plenty of that lately to waste! That way I can inspect the rest of it for wear after I do a compresion test on the cylinders!! I am waiting for my Gasket Set to put my working tractor back together. To rebuild my head was $100.00 so to do the top end it ran $145.00 complete not to bad for what I did to it! Mark H.

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