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Repair Front Axle Elongated Radius Rod Holes

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Flyer

07-31-2007 16:54:36

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Hi everyone,I'm new to the board. I have some questions about rebushing worn radius rod pin holes in the front axle of a my 49 8N. I replaced the king pin, bushing and the spacer washers and that tightened up the axle quite nicely. Now I would like to repair those sloopy elongated radius rod pin holes. The new pins helped a little but it's still loose.

Has anybody had any experience with this project?. Do you think it could weaken the front axle?. I have searched the archive for this kind of repair only found mentioned to take it to a machine shop. I'm wondering which type of bushing material to use for this application, a Bronze 841 oil impregnated or some kind of steel bushing material. My friend is a machinist and said he could do this for me.
Looking for some ideas. Thanks. Flyer

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Flyer

08-02-2007 10:11:01

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to Flyer, 07-31-2007 16:54:36

Thanks for everyones comments.
I decided to try some .020 brass shim stock to make a half bearing shell to fit into the holes in the axle. I cut the flat shim stock into strips 3 1/4 " long by 1" wide and formed it around the 5/8" (.625) radius rod pin to shape it. This seems to have taken up the play with pin and hole in axle. The radius rod yoke holes are not worn as bad as the holes in the axle, so I'll leave those alone for now.

I'll try this and see how the brass holds up for this repair. Thanks again for everyones comments. Flyer

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russ b

07-31-2007 19:01:38

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to Flyer, 07-31-2007 16:54:36

I seem to recall these are nominal 5/8 (0.625). I would check the size of the pin with a mike or good caliper in several stations along the length. You might find something like a drill bit or bolt that is a couple thou larger to test for a better fit..

I would be reluctant to bush the holes.

Me, I would like a close fit, but I could live with a few thou. The other end isn't too close either on my 8N. I wonder about drill n tap for a Zerk on the ball end, any thoughts?

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souNdguy

08-01-2007 07:12:05

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to russ b, 07-31-2007 19:01:38

I wouldn't grease a joint like that that could get dirt in it.. if the ball/socket end it sloppy.. take a penny, lay it on a scrap piece of wood..whack it with a ballpeen hammer round end to make it concave.. install it behind the ball in the socket.. should tighten it up nicely.

Punch out slug from an electrical box works fine if ya can't part with the lincoln...

Soundguy

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TheOldHokie

08-01-2007 13:34:44

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to souNdguy, 08-01-2007 07:12:05

souNdguy said: (quoted from post at 07:12:05 08/01/07) I wouldn't grease a joint like that that could get dirt in it..

Soundguy

I've never subscribed to this theory - they grease nearly every pin and roller in the bucket and track assemblies of earth moving equipment and those parts run right in the dirt.

JMO,

TOH

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TheOldHokie

07-31-2007 17:09:08

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to Flyer, 07-31-2007 16:54:36

Simpler it would seem to just drill/ream enough to straighten the hole and install an oversize pin? Your machinist friend should be able to fit a pin to whatever size the holes finish to. Minimizes the metal you need to remove.

TOH

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Bruce (VA)

07-31-2007 17:45:23

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to TheOldHokie, 07-31-2007 17:09:08

TOH, I sent you an email to your Verizon address Sunday. Is that an old address?

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TheOldHokie

07-31-2007 17:53:04

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to Bruce (VA), 07-31-2007 17:45:23

My personal eMail is still Verizon but it gets immediately forwarded to work and the govt Spam police sometimes deem some of the content "inappropriate". Unfortunately Verizon eMail is so minimalistic it won't let me keep a copy of the forwarded messages on their site. Try this one:

TOH's Office eMail

TOH

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Bruce (VA)

07-31-2007 18:05:49

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to TheOldHokie, 07-31-2007 17:53:04

Tnx! Just resent it to the new address. Yea, my government email would block a lot of stuff, including every email sent by my wife! (I paid extra for that!)

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Dunk

07-31-2007 17:29:09

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Re: Repair Front Axle Elongated Radius Rod Holes in reply to TheOldHokie, 07-31-2007 17:09:08

Ummm, I can see the hole in the radius rod where the pin goes thru wearing a bit...

But I have trouble seeing the hole in the axel extension wearing elongated, at least enough to matter.

Just my drunken thoughts..

Maybe I am just off my rocker too far..

But I think we are talking about the radius rod ends.

Most folks put bolts (5/8"?) in them instead of the pins that are supposed to be in them, that reduces the wear surface on the top by 1/2.

There is not a lot of "extra" there to play with.

Like I said I may just be off my rocker.

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