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Main
Date: 07 Nov 2007 16:48:38
From: (PeteCresswell)
Subject: Truing Brake Rotors?
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My front rotor wobbles a few mm - just enough so that it either squeaks intermittently, or there's too much lever travel - depending on the pad clearance. I can see truing a really-taco-d rotor with a hammer and/or some educated bending... but this is much more subtle. Is there a technique? My kneejerk was application of sufficient heat, followed by sandwiching it between two dead-flat surfaces - probably also heated quite a bit, but I'd guess there is a loss-of-tempering issue lurking there. -- PeteCresswell
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Date: 08 Nov 2007 21:06:27
From: jim beam
Subject: Re: Truing Brake Rotors?
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(PeteCresswell) wrote: > My front rotor wobbles a few mm - just enough so that it either > squeaks intermittently, or there's too much lever travel - > depending on the pad clearance. > > I can see truing a really-taco-d rotor with a hammer and/or some > educated bending... but this is much more subtle. > > Is there a technique? yes. careful bending. > > My kneejerk was application of sufficient heat, followed by > sandwiching it between two dead-flat surfaces - probably also > heated quite a bit, but I'd guess there is a loss-of-tempering > issue lurking there. hard. unnecessary. counter-productive.
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Date: 08 Nov 2007 01:42:11
From: still me
Subject: Re: Truing Brake Rotors?
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On Wed, 07 Nov 2007 16:48:38 -0500, "(PeteCresswell)" <x@y.Invalid > wrote: >My kneejerk was application of sufficient heat, followed by >sandwiching it between two dead-flat surfaces - probably also >heated quite a bit, but I'd guess there is a loss-of-tempering >issue lurking there. >-- really bad idea, and a really big thread diversion opening!
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Date: 07 Nov 2007 23:46:56
From: landotter
Subject: Re: Truing Brake Rotors?
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On Nov 7, 3:48 pm, "(PeteCresswell)" <x...@y.Invalid > wrote: > My front rotor wobbles a few mm - just enough so that it either > squeaks intermittently, or there's too much lever travel - > depending on the pad clearance. > > I can see truing a really-taco-d rotor with a hammer and/or some > educated bending... but this is much more subtle. > > Is there a technique? Use a crescent wrench to bend and the caliper as a truing stand. If you're a gear head, you can get the "proper" tool: http://www.amazon.com/Park-Tool-Rotor-Truing-Fork/dp/B000HJDVCS
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