Author Topic: Warped Axle Flange?  (Read 10112 times)

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Offline motorhead

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Warped Axle Flange?
« on: September 14 2011, 08:20:34 PM »
I am showing ~0.025-30" run out at the axle flange, which becomes ~0.050" at the outter edge of the rotor, which then translates into the undulating caliper that runs out ~0.035" (see video).

brakesbroke.mp4

I am willing to bet it has been like this since last March when I swapped the axle studs.

Me thinks I need a new axle. Should I figure to stop driving on this until I get a replacement?



« Last Edit: September 14 2011, 09:51:30 PM by motorhead »
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Offline motorhead

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Re: Warped Axle Flange?
« Reply #1 on: September 14 2011, 08:22:11 PM »
One more pic!
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Offline Steve Wood

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Re: Warped Axle Flange?
« Reply #2 on: September 14 2011, 08:58:23 PM »
I guess it is possible, but, not that probable.  Could it be an axle bearing?  I don't think driving on it will lead to sudden failure, but, it might wear the bearing out with time?  Just guessing
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Offline The Radius Kid

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Re: Warped Axle Flange?
« Reply #3 on: September 14 2011, 09:11:29 PM »
Eeyup,you need new axles.
Get a couple from Bear driveline.
Solid,not hollow.

Offline motorhead

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Re: Warped Axle Flange?
« Reply #4 on: September 14 2011, 09:58:41 PM »
Well I smeared a little Sil-glyde on the caliper bracket and guide clips which killed the squeak.

I am pretty certain that it isn't the bearing because there is no "groan". I'll start shopping for a new/replacement piece(s).

In the meantime I am going to finish out the race season on it.
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Offline The Radius Kid

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Re: Warped Axle Flange?
« Reply #5 on: September 14 2011, 10:20:06 PM »
Well I smeared a little Sil-glyde on the caliper bracket and guide clips which killed the squeak.

I am pretty certain that it isn't the bearing because there is no "groan". I'll start shopping for a new/replacement piece(s).

In the meantime I am going to finish out the race season on it.

That's not caused by a bearing [be sure to check it though],but you AREN'T finishing out the racing season on it,unless you're an idiot.:)

Offline daveismissing

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Re: Warped Axle Flange?
« Reply #6 on: September 14 2011, 10:25:23 PM »
So is the prevailing opinion that the axle is bent or could it be just the flange?
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Re: Warped Axle Flange?
« Reply #7 on: September 14 2011, 10:33:07 PM »
My money is on the flange.

And yes, I am an idiot. But, in all seriousness I'll find a replacement.
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Re: Warped Axle Flange?
« Reply #8 on: September 14 2011, 11:25:41 PM »
Only the outer face needs to be true and could be machined?
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Offline The Radius Kid

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Re: Warped Axle Flange?
« Reply #9 on: September 15 2011, 12:45:26 AM »
Only the outer face needs to be true and could be machined?

Not a chance in Hell.

Offline The Radius Kid

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Re: Warped Axle Flange?
« Reply #10 on: September 15 2011, 12:49:02 AM »
My money is on the flange.

And yes, I am an idiot. But, in all seriousness I'll find a replacement.

Good thinking....an d not idiotic at all. :cool;
I would just buy a couple of upgraded axles and be done with it.
They shouldn't be much more than a replacement stocker and you'll be future proofing yourself.

Offline Turbodave

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Re: Warped Axle Flange?
« Reply #11 on: September 15 2011, 07:01:04 AM »
Definately  a bent axle shaft.
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Offline ULYCYC

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Re: Warped Axle Flange?
« Reply #12 on: September 15 2011, 08:17:53 AM »
Take off the rotor and check the runout off the axle flange.  Warped rotors can be deceiving.
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Re: Warped Axle Flange?
« Reply #13 on: September 15 2011, 08:25:53 AM »
Only the outer face needs to be true and could be machined?

Not a chance in Hell.
Thanks for the detailed explanation

and welcome back Ed!
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Offline motorhead

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Re: Warped Axle Flange?
« Reply #14 on: September 15 2011, 08:52:22 AM »
Take off the rotor and check the runout off the axle flange.  Warped rotors can be deceiving.

I thought I did that already? (first two photos) Also, I should point out that I did also measure around the outside of the flange and it showed ~0.015 of run out; just in case you were speaking to that.
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