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Farmall & IHC Tractors Discussion Forum
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Go with 4-pad clutch plate or not?

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Brad Sanders

09-29-2003 11:50:47




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I recently bought a new clutch friction plate for my 1946 A from an internet site. It is a 4-pad heavy duty clutch, but the pads look so much different from the lining on the original plate that it made me wonder. Is there an advantage to using the new 4-pad plate or should I stick with something like the original? This tractor will see only light duty, occasional work.




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JB

09-29-2003 17:57:48




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 Re: Go with 4-pad clutch plate or not? in reply to Brad Sanders, 09-29-2003 11:50:47  
I believe the older, greater than 25 years ago clutch disks had a material that contained a good percentage of asbestos. Brake linings were made of the same material. It has only been in the last few years that combinations of materials have been developed that give the same wear and heat resistance that asbestos did. Today most medium priced clutches/brake linings are made of a semi-metalic compound. This produces the rust colored dust that you see on the front wheels of vehicles and inside the bell housing. High end linings as found in race cars are made of a carbon compound.

As someone else stated that a wooven full disk clutch is preferred for a loader tractor and a paddle clutch for other applications.

JB

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the tractor vet

09-29-2003 17:48:45




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 Re: Go with 4-pad clutch plate or not? in reply to Brad Sanders, 09-29-2003 11:50:47  
It will work just fine but have the Flywheel Turned down the best way is have refaced with a flywheel grinder and install a new pressure plate and both bearings at the same time. that way it is all done at once and the disc and plate will mate with the flywheel.



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RickB.

09-29-2003 17:08:06




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 Re: Go with 4-pad clutch plate or not? in reply to Brad Sanders, 09-29-2003 11:50:47  
The upside to most 'button" clutch discs is their long life and great lockup characteristics. The downside is they are VERY tough on flywheels and pressure plates. It is not uncommon for two of these discs to trash a flywheel on a IH 1066 or JD 4320,for example. Organic discs may not last as long, but your flywheel will last darn near forever.



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J in Pa

09-29-2003 14:48:54




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 Re: Go with 4-pad clutch plate or not? in reply to Brad Sanders, 09-29-2003 11:50:47  
Brad. i pit one of those 4 pad clutches in a 404 about 3 years ago. had it apart this summer for a pilot bearing and it still looks fine. i questioned the international dealer about it and he said it would last a lot longer then the other type. it seems to be working just fine.
i would say try it. esp if thats the only type there is around.
good luck.

J in Pa



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Dr.EVIL

09-29-2003 12:41:26




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 Re: Go with 4-pad clutch plate or not? in reply to Brad Sanders, 09-29-2003 11:50:47  
Hard to tell exactly what kind of clutch You Have but IHC DID make replacement clutch discs for older tractors with the same 4 or 6 pad style and material (combination ceramic & copper) as They used for their newer tractors back in the 70's & early 80's. It was their Serious Heavy Duty replacement clutch. They were supposed to outlast the OEM clutch 2 to 3 times. If that's what You have I'd use it.

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Dan

09-29-2003 12:37:11




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 Re: Go with 4-pad clutch plate or not? in reply to Brad Sanders, 09-29-2003 11:50:47  
When I had my SMTA apart I got a new clutch disc of the 4 pad type. The dealer said it would hold better than the regular disc but harder to feather the clutch so not good on a loader tractor. Unfortunately I couldn't get my pressure plate to release right with the 4 pad so ended up going back to my old one so don't know from first hand, only what dealer said. If that was the case you might want to stay with original type for your use.

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