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Old 03-20-2013, 10:42 AM   #16
troidus
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Back in the early 80s a friend of mine got his wheels balanced at an old tire shop in Wichita. They did on-car spin balancing and man, was that a smooth balance.

There was a gizmo that clamped onto the wheel in place of the hubcap and it had four dials protruding from the center. Spin the wheel up to 60 mph (using the engine for the back wheels and an electric motor for the fronts), then turn the dials until no vibration could be felt.

It was slick, but there's probably a bit of artistry to knowing which knob to turn which way to get it right. Then you have to stop the wheel, read the dials, and hammer the weights on.

I've not seen one since, but I'd sure like to have one. It's the one bit of tire work I can't do for myself.
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Old 03-20-2013, 11:10 AM   #17
ttpete
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Quote:
Originally Posted by troidus View Post
Back in the early 80s a friend of mine got his wheels balanced at an old tire shop in Wichita. They did on-car spin balancing and man, was that a smooth balance.

There was a gizmo that clamped onto the wheel in place of the hubcap and it had four dials protruding from the center. Spin the wheel up to 60 mph (using the engine for the back wheels and an electric motor for the fronts), then turn the dials until no vibration could be felt.

It was slick, but there's probably a bit of artistry to knowing which knob to turn which way to get it right. Then you have to stop the wheel, read the dials, and hammer the weights on.

I've not seen one since, but I'd sure like to have one. It's the one bit of tire work I can't do for myself.
I've used those. One pair of knobs adjusts the amount of weight, and the other pair positions it around the wheel. The advantage of this is that you are also balancing the wheel hub and either the drum or rotor.
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Old 03-20-2013, 04:12 PM   #18
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As I understand it, Road Force balancing is the automotive holy grail. I had to purchase the service to try and solve my 'Burban shakin like a whore in church with brand new Michelin LTX M/S LRE's. In the end, the Mich's had been "touch sanded" in an attempt to round up a poorly molded tire. Almost $1000 after all the shit (three sets of tires, all out of tolerance)

http://www.gsp9700.com/
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Old 03-20-2013, 05:33 PM   #19
C Squared
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Quote:
Originally Posted by troidus View Post
Back in the early 80s a friend of mine got his wheels balanced at an old tire shop in Wichita. They did on-car spin balancing and man, was that a smooth balance.

There was a gizmo that clamped onto the wheel in place of the hubcap and it had four dials protruding from the center. Spin the wheel up to 60 mph (using the engine for the back wheels and an electric motor for the fronts), then turn the dials until no vibration could be felt.

It was slick, but there's probably a bit of artistry to knowing which knob to turn which way to get it right. Then you have to stop the wheel, read the dials, and hammer the weights on.

I've not seen one since, but I'd sure like to have one. It's the one bit of tire work I can't do for myself.

You could probably find one some place. It is what I was taught to use in H.S. shop class. Now I teach that class.
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