Throwout / Release Bearing Help

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Throwout / Release Bearing Help

Postby oldspwr » Tue Jul 19, 2016 7:10 am

Hey guys...

Looking for some advice here...

I ran into an issue with the throw out bearing with my Continental to Cummins swap. With the original 14” Lipe Rollway clutch, Model 140-1-504, the coil spring to release the clutch sticks out exactly 1 1/2" from the bell housing...

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Using the clutch recommended by Valair, a 14" Lipe MU140-61-1686, the fingers to release the clutch are recessed into the bell housing a little less than 1/16”...

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So basically I need to extend my throwout / release bearing 1 1/2". To do this I looked at several options, including adding a (1) 1 1/2" spacer behind the original throwout bearing sleeve, (2) machining a spacer (extension) that presses where the original bearing sits, (3) Finding a different throwout bearing sleeve setup or (4) finding a different clutch.

With option 2 and 3, the main issue is not being able to get grease to the bearing. By locating the bearing 1 1/2" closer to the clutch, it will no longer ride on the collar the splined shaft fits through. I did consider drilling the bearing and installing a grease fitting, but I’m not sure if it will work. Even a shallow fitting may interfere with the balls and the fitting will rotate with the bearing.

So here are the specifics....

The original throwout bearing is a BCA 2375-F (which is stamped 2375-17). It has a bore of 2.3745”, an OD of 3.500”, bearing width 0.73” and overall width of 0.8045”.

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The sleeve the bearing presses on has a bore of 1.88”, a fork groove of 3.375”, and overall diameter of 4.25” and a fork to face dimension of 2” ...

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So basically I need the same type of sleeve but with a fork to face dimension of 3.5” (2” + 1 1/2"). The closest I could find is FA02256C but the bore is 1.9445”. I need 1.88” and I believe .065” will make it too loose...

http://www.phoenixfriction.com/p-40637- ... rucks.aspx

I also looked at a Spicer 187140 / Newstar S-9208 / Eaton Fuller SP187140 but I can’t find any dimensions. I did have a guy on eBay send me some pics but I suspect the fork diameter is different.

For reference, here are two links that I have been using to find dimensions, etc...

Phoenix Friction

http://www.phoenixfriction.com/c-331-re ... ?pagenum=1

And AMS Automotive...

http://www.amsautomotive.com/idd_images/pdf/TB210.pdf

So does anyone have any thoughts?

Thanks,

Tom
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Re: Throwout / Release Bearing Help

Postby Huskiedrive2 » Thu Jul 21, 2016 9:42 am

How about a billet made collar of custom length?
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