drilling pilot bushing

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brichter
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drilling pilot bushing

Postby brichter » Sun Jul 07, 2019 7:16 pm

Have anyone of you ever had to drill a clutch pilot bushing out? I tried all the normal methods of removing it but no luck. I would like to know the drill size to use to drill what is left in the cavity out. Any knowledge of the Od of the bushing? Thanks,

Billy Ray
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ricky racer
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Re: drilling pilot bushing

Postby ricky racer » Sun Jul 07, 2019 7:52 pm

ID .626 in., OD .814 in.
1929 Farmall Regular
1935 John Deere B
1937 John Deere A
1941 John Deere H
1952 John Deere B
1953 Farmall Cub

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Re: drilling pilot bushing

Postby Bob McCarty » Sun Jul 07, 2019 8:16 pm

BR, did you try running a tap in and backing it out?
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we need to think differently."
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brichter
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Re: drilling pilot bushing

Postby brichter » Sun Jul 07, 2019 8:26 pm

sure did, bob, no luck
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Re: drilling pilot bushing

Postby Jim Becker » Sun Jul 07, 2019 8:50 pm

If a 3/4 tap stripped out the inside of the bushing, there can't be much thickness left. It should collapse with a chisel. It may be thicker at the bottom of the hole.

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Re: drilling pilot bushing

Postby ntrenn » Sun Jul 07, 2019 8:52 pm

First attempt...sleeve puller.
Second attempt...French fries...pack French fries (white Castle work good), then compress them with a tight fitting rod. Hammer them home...Will take about a half an order of fries...

Never tried it on a cub, but it’s worked on every other kind of vehicle...

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Re: drilling pilot bushing

Postby JRS » Mon Jul 08, 2019 9:30 pm

Pump hole full of grease gun grease then tap a snug fitting bolt in the hole the hydraulic pressure will push it out

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Re: drilling pilot bushing

Postby Lt.Mike » Thu Jul 11, 2019 6:22 pm

JRS wrote:Pump hole full of grease gun grease then tap a snug fitting bolt in the hole the hydraulic pressure will push it out

That’s how I got mine out.
With the China made replacement I trial fit it on the input shaft and it was perfect but after installing it the inner diameter was compressed and was too tight for the shaft. I carefully drilled it to the proper ID and it then worked fine.
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Re: drilling pilot bushing

Postby BigBill » Thu Jul 11, 2019 6:51 pm

Tapping it with a fine thread and using a threaded rod and a pipe with the inside diameter with washers you should be able to pull it out,

Filling it with grease and using a dowel pin the size of the hole with a hammer will jack it out too.

I just bartered a saw for a bux magnetic base drill. I can drill and tap even upside down.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.


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