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Re: Brake Rotors

To: rpalmer@ames.ucsd.edu (Bob Palmer),
Subject: Re: Brake Rotors
From: richards@northcoast.com
Date: Mon, 25 Aug 1997 21:23:28 -0700
torque the wheel bearings to 14 lbs.......yikes...no free play..!!?!!

On Mon, 25 Aug 97, rpalmer@ames.ucsd.edu (Bob Palmer) wrote:
>Ramon,
>
>Just a thought about what may have caused your rotor to bust: Suppose your 
>wheel bearing was a little loose.  Now you clamp the binders on hard and hit 
>a bump, or turn, or otherwise apply a lateral force.  Instead of the wheel 
>bearings taking the load, the rotor will take the load, causing it to break 
>(not brake).  Sound plausible?  You should torque your wheel bearings to 
>about 14 ft-lbs if I remember correctly.  In any case, you shouldn't be able 
>to feel any play in the wheel when it is adjusted correctly.  They do have a 
>tendency to get loose over time; especially when the bearings are first 
>installed.
>
>Bob
>
>>Just when you think you can live with the flakey ball joints, fulcrum
>>pins, reverse-Ackerman, twist-o-flex front crossmember and stuff, here
>>comes another.   At the CalClub autocross Saturday night, we busted a
>>brake rotor on my second run.  Damnedest thing I ever saw.  It broke all
>>the way around the mounting area, leaving the rotor part to free-wheel,
>>with the mounting part still attached to the hub.
>>
>>Although it made a gosh-awful noise, there was no other damage.  It
>>burred the corner on one of the dust-sheild mounting bolts, and scraped
>>a bit of paint off the inside of the shield itself, but no damage other
>>than the busted rotor.  And, since the rotor itself remained intact, the
>>braking loss was limited to the one front wheel--no loss of fluid or
>>anything, 'cause the rotor kept the pads in place.
>>
>>Damnedest thing I ever saw!
>>
>>Ramon
>>
>>
>
>
>

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