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TY250A Swing Arm Bushing Questions


mr neutron
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Hi, All!

Working on making my recently purchased 1974 TY250 rideable. I'm doing repairs from probably decades of neglect, abuse, and a bit of "Hillbilly Engineering" from the previous owner(s). :rolleyes: At the same time, I'm making a few minor "upgrades"; like the Sammy Miller wide footpegs that lower and move the pegs slightly rearwards. This requires removal of the swingarm bolt. While that bolt is out, I thought I'd look into replacing the grease nipple and the pivot bushings.

I got the swingarm bolt out after somewhat of an epic battle. :banana: Now I'd like to get the long inner bushing out; the one sorta shaped like a long dog bone that goes completely through the swing arm pivot and the plastic bushings. After that, I'd like to replace the plastic bushings, seals, and such.

But that long steel bushing I tried to describe above is really, REALLY stuck in there. I don't want to bugger it up as I need to reuse it. How is the best way to rmove this, without doing any harm?

If I had a lathe, I'd turn some barstock with a step in it to use as a driver, and maybe try pounding/pushing it out that way??? :unsure:

Any tips from those that have done this before?

Thanks,

Jimmie

Edited by mr neutron
correct some spelling mistakes........
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Okay, I guess I "panic-posted", THEN decided to think........ :stupid:

I recall having done something similar with a length of all-thread rod, some washers, some nuts, a sleeve or two, and used all this stuff similar to how a wrist pin puller/pusher works (gudgeon pin????). Will let ya know how it works out tomorrow.

 

Thanks,

Jimmie

Edited by mr neutron
corrected spelling errors
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4 hours ago, mr neutron said:

Okay, I guess I "panic-posted", THEN decided to think........ :stupid:

I recall having done something similar with a length of all-thread rod, some washers, some nuts, a sleeve or two, and used all this stuff similar to how a wrist pin puller/pusher works (gudgeon pin????). Will let ya know how it works out tomorrow.

 

Thanks,

Jimmie

I'm sure that your puller idea will work.

In case this is your next question, the plastic bushes can be hard to get out but they will shrink and fall out if you heat them up with a flame hot enough to burn the paint off the pivot tube.

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Well, Big Lumpy Poopy Pants! 

It's lookin' like your idea to heat up stuff might be how it gets done, feetupfun........ 

My efforts with my all thread puller didn't work out at all. Can't get that inner steel tube to even budge a tiny amount. It's the first time I can recall stripping nuts and all threaded rod without being able to get something to move. I have the swingarm lightly clamped in a vise while soaking in penetrating oil for now, hoping that enough liquid can get through all those holes that grease is supposed to travel through to do some good for me.

Judging by how tight this long steel bushing is in the plastic bushings, and how tight those plastic bushings are pressed in the swingarm, I'm beginning to wonder if I should've not even bothered to remove them. It also makes me curious about how reassembly will go as well........ :wall:

 

Any tips, words of encouragement, and facts pointing out what a Goober I am are welcomed!

Jimmie

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