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Farmall & IHC Tractors Discussion Forum
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1066 Hyd. Assist Clutch - Hey Tractor Vet

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Michael Sheik

04-04-2007 05:06:08




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Studied the service manual last night and went to pull the pins in the clevis(s) for the input and output shafts and both pins are froze probably due to previous owner letting set outside a lot and rusty. Can't drive the front one inward as there is a steel hyd. line behind it. Kind of spooky using heat here as there is oil, hyd lines, wires, etc close. Is there a special puller or a trick here other than just banging and prying. Yea the cotter key is out!
Also noted that not only is the oil leaking out the the slave cylinder at the input boot but small leak at top fitting, back side on MCV. The one that has a pressure switch screwed into it with wire attached. Assuming this is for the telltale light. What is behind this fitting? oring? Anything else behind there that will fly out and disappear.
Others welcome to respond also!

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the tractor vet

04-04-2007 07:19:31




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 Re: 1066 Hyd. Assist Clutch - Hey Tractor Vet in reply to Michael Sheik, 04-04-2007 05:06:08  
Ah the fight is on to get them pesttie headed pins out . Vice grips panther pee hammer lots of four letter words and a littel help from the blue flame .Ya don't have to turn them red hot to get them to break loose just a littel heat on the end of the clevis while turning with a pair of vice grips and at times i have had real good luch with my Elf hammer and my trusty Zep panther Pee . Ya'll can rag on Blasters and all the rest of the snake oil i have been using this stuff for going on 40 years , god it's been that long now , and i have not found anything better got half the neighborhood on this stuff.

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Owen Aaland

04-04-2007 07:16:29




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 Re: 1066 Hyd. Assist Clutch - Hey Tractor Vet in reply to Michael Sheik, 04-04-2007 05:06:08  
If the pins are installed correctly there should bde a 1/4-20 threaded hole in the center of the clevis pin. You can screw a bolt in there to use to pull them out. Try soaking them with penetrating oil for as long as you can.

Behind the pressure sender is the lube pressue relief valve. It is held in with a 1/8" pin through the MVC. No way to get it out without removing the outside plate. Also check the TA pressure dump valve located just above the pressure sender. It is quite possible that the leak is there and running down on the sender.

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Michael Sheik

04-04-2007 08:14:07




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 Re: 1066 Hyd. Assist Clutch - Hey Tractor Vet in reply to Owen Aaland, 04-04-2007 07:16:29  
I saw the hole in the center of the pin but I didn't notice any threads. Looked like a machined center point for a lathe center. Maybe I need to do a little digging around in the hole as I didn't check out real good. Last night at 10:00 pm wasn't a good time to be thinking so I sure hope your right on that 1/4-20 thread.



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Owen Aaland

04-04-2007 09:14:42




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 Re: 1066 Hyd. Assist Clutch - Hey Tractor Vet in reply to Michael Sheik, 04-04-2007 08:14:07  
After a little more thought on the subject, only the front one has the threaded hole. The rear one has a smaller pin sticking out to operate the safety starter switch.



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