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2090 Clutch Now

rusty6

rusty6

Well-known Member
Location
East central Sask.
A little update on the 2090 transmission problems. We did get the shift rail back inside complete with a new custom made pin to hold it in place. I have some video of it to post when I get time In other news, the clutch is the cause of the worn out pin. This tractor clutch does not have the typical coil springs that most have. It has "Bellville washers" stacked under each bolt to form a sort of spring. We found some of the broken pieces in the bottom of the transmission. I know the clutch has been a bit draggy for a while and that puts extra strain on the shifting forks, levers, etc. Looks like there is a "split" in it's future. There are about $1100 worth of Bellville washers in there from what I hear. :shock:
mvphoto94560.jpg
 
(quoted from post at 11:42:12 07/15/22) Woof that doesn't look like a good design. but then it did last. Jim
Click to expand...
Not really. I had them replaced back in the 90s and now they need replacing again. Messicks site says 36 of them at something over $25 U.S. each. Almost unblievable price for a little steel washer. I don't know if they might be available through other suppliers but Case IH is always high priced on parts.
 
I'd almost bet Case buys those washers for less than 5 dollars per washer. I would be forced to buy them elsewhere because I try to avoid thieves.

Good luck with the tear down!
 
Mc Master Carr has them in a 3/8ths 1.125 od by .078 thick for 16.00 Pack of 6. Not sure what size you really need but that is what your picture looked like it showed.
 
Possible a source. I would be talking to someone who knows bellville washers real good. My guess is not all bellville washers are same quality as used in clutch.

https://americanbelleville.com/products/disc-springs/
 
There are several belleville spring manufacturers in the USA:

www.leespring.com/belleville-washers?msclkid=9b9283134dfa17fc37d3e1c2a1826ee6

Can you measure the dimensions and force required?
 
(quoted from post at 15:44:16 07/15/22) There are several belleville spring manufacturers in the USA:

www.leespring.com/belleville-washers?msclkid=9b9283134dfa17fc37d3e1c2a1826ee6

Can you measure the dimensions and force required?
Click to expand...
I'd be a little reluctant to try putting in some unknown washers that might not be as strong as the originals. Would not want to be the first one doing this experiment but yes, I'm pretty sure there are alternatives out there that would be well below CIH exorbitant pricing.
 
Would a good clutch rebuilder be able to rebuild your pressure plate with springs in place of the belleville washers ? Or maybe
there is already an aftermarket rebuild available with springs ?
 
(quoted from post at 05:26:08 07/16/22) Would a good clutch rebuilder be able to rebuild your pressure plate with springs in place of the belleville washers ? Or maybe
there is already an aftermarket rebuild available with springs ?
Click to expand...
I'm not sure if this even has a pressure plate like the clutches I'm used to. This one is hydraulic and I'm assuming held engaged by hydraulic pressure? This parts diagram shows it, and the expensive washers (Item #11).
mvphoto94593.jpg
 
Belleville disc washers to help separate hydraulic clutches are very common.
The stiffness of the belleville spring washer is only due to geometry.
To.match them, you need to gave the hardness and the material type checked. I think schools or universities can do that cheap for you....


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