loose clutch line up tool

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pett3227b
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loose clutch line up tool

Postby pett3227b » Mon Jan 02, 2023 4:19 pm

I have puchased a new clutch plate and line up tool from steiner. The line up tool is a little loose at the pilot bushing end. is this acceptable? there is a little wobble. Will the clutch plate seat better once the pressure is relieved from it?

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Re: loose clutch line up tool

Postby staninlowerAL » Mon Jan 02, 2023 4:30 pm

You can try wrapping one or two turns of electrical tape on the tool to take up the extra space. Is your pilot bushing wear within spec?
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Re: loose clutch line up tool

Postby SamsFarm » Mon Jan 02, 2023 4:47 pm

Is your pilot bushing wore out?
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Glen
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Re: loose clutch line up tool

Postby Glen » Mon Jan 02, 2023 7:10 pm

Hi,
The pilot bushing might be worn, like was said above, or the end of the tool might be too small.
You didn't say if you replaced the pilot bushing.
One of the experts on here has said some are still good, and don't need replacing.
I would measure it's ID with a dial caliper to check its size.

Below is a page from the Cub service manual, showing the running clearance for the pilot bushing, at Spline and clutch shaft.
Measure the end of the clutch shaft, and the ID of the pilot bushing, and figure the clearance. :)

http://farmallcub.com/rudi_cub/www.clea ... -05-02.jpg

pett3227b
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Re: loose clutch line up tool

Postby pett3227b » Tue Jan 03, 2023 8:19 am

The pilot bushing is brand new got it from tm tractor. I also checked the fit on the end of my drive shaft before putting it into the back of the crankshaft. The line up tool is definitely too small. I might put one wrap of electrical tape onto it and see how that does. Does the friction plate move at all once the pressure on it is relieved? I am confident that I can get the drive shaft into it and up to the pilot bushing by bringing the 2 halves of the cub together slowly and carefully.

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ricky racer
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Re: loose clutch line up tool

Postby ricky racer » Tue Jan 03, 2023 8:43 am

Once the pressure plate is bolted down, you won't be able to move the clutch plate.

As advised, check the fit of the shaft and the pilot bushing. When the bushing is pressed into the crankshaft it will constrict the diameter of the bushing. Just because it fit the shaft prior to installation doesn't mean it will fit after installation. Verify it's fit or you will be fighting to recouple the tractor.
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Re: loose clutch line up tool

Postby Glen » Tue Jan 03, 2023 11:00 pm

Hi,
I sent you a PM.
I agree with what Rick said above.

If the clearance is too small, the bushing needs reaming to make it bigger.
The pilot bushing ID can shrink after driving it in the hole. Then if the bushing ID is too small, and you put the Cub together, the clutch shaft won't stop turning when you push the clutch pedal down.
Then the gears grind when trying to shift them. Many people that wrote on here over the years have had this problem.
Use the specs in my post above from the service manual to measure the clearance.

I would put a light layer of grease in the pilot bushing, and on the end of the clutch shaft that goes in the bushing, when you put the Cub together. :)


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