Aluminum Axle

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Ken Bohannon
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Joined: Wed Jul 06, 2011 11:57 pm
Vintage Karting items owned: 1966 Boone Enduro
72 Blackhawk Poison Arrow MkVI
60 Gilson Excalibur Jr
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Location: Wisconsin USA

Re: Aluminum Axle

Post by Ken Bohannon » Tue Feb 21, 2012 12:55 am

Thank You Steve O. I got the outer half off no problem a few weeks ago and it has been soaking in Kroil since. The bearing had to be cut off and the wheel just won't budge. Looks like the previous owner pounded the dickens out out it with a steel hammer, I am really lucky it is unbroken. I just don't have the balls to put a 6" Go Power in an arbor press, too difficult to replace. The axle is already a little dinged and one end broke at the cotter key hole and was re-drilled, no big loss. Plus, I got the good buddy price on a new one. Thanks to all. Ken
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Rob Voska
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Re: Aluminum Axle

Post by Rob Voska » Tue Feb 21, 2012 8:08 am

Cut axle off at end of keyway.
Weld something to keyway to attach a slide hammer to.
Slide hammer out keyway after soaking from both sides for a while.
Once keyway is out soak again, hold in vice & try to twist loose.
If it won't twist (you now have a 1" straight bore) chuck the end up in a lathe & drill out.
Then take a boring bar & open it up slowly until the bottom of the keyway is open.
At that point pressure is released as you only have a "C" shape left.
Now twist it off by hand.
If it won't twist off now open up bore carefully to .060 undersize.
Now you can take a small chisel & peel back the aluminum from the steel.
It has worked for me many times with zero damage to the wheel.

Terry Sullivan
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Vintage Karting items owned: 4 Bugs, including the Wasp bought by my Dad in 1959. Many Clintons and a few Macs
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Location: Cumming, GA

Re: Aluminum Axle

Post by Terry Sullivan » Tue Feb 21, 2012 5:06 pm

Like Rob says, a lathe would be the best way to do it with the least amount of stress on the wheel.
If a lathe is not an option - Can you see the key from the other side of the wheel? If so, get a 1/4 drift punch an see if you can knock it through the wheel, probably leaving the axle in place. Once the key is out, it will be much easier to support the wheel with washers or some kind of collar with a 1" diameter hole. A press would be the best way to push the axle out, but a hammer would do in a pinch.

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