Question regarding UFO brakes

Bernie Benz b.benz at
Mon Jul 9 14:24:04 EDT 2007


IMO, bad advice, based upon a WAG and no BTDT is worse than no  
advice!  You are wrong In your suposition!

Kevin stated that he had easily removed the inner pad and loosened  
the UFO rotor from the hub, but didn’t have enough wiggle room to get  
the rotor off the hub and up out of the caliper. This may be the case  
if the pads are well worn and the piston extended. One should return  
the piston into its bore before trying to remove the rotor. Further  
to your suggestion, it is probably impossible to remove the caliper  
without first removing the rotor!


On Jul 9, 2007, at 9:51 AM, Kenneth Keith wrote:

> Kevin,
> You didn't mention removing or moving the caliper.  I've never worked
> on UFO brakes before, but the caliper is clamped onto the rotor so if
> you haven't removed the caliper then I don't think you are going to be
> able to get the rotor off.  It's just like a regular brake setup,
> assuming you are familiar with that, but the caliper is on the inside
> of the rotor ring "facing out" instead of clamped on the outside.
> Just as you typically wouldn't be able to get the rotor off without
> removing or pivoting away a conventional caliper, you won't be able to
> do it with the UFO setup AFAIK.
> I would imagine that the outboard pad is trapped between the caliper
> on the inside and the rotor "donut" on the outside, so the caliper
> needs to come off to get to that pad.  I now have a UFO'ed 200q20v in
> addition to a second G60'ed one, so I may get some more exposure in
> this area, maybe soon.
> Cheers,
> Kenneth
> Kevin Rufino <krufino at> wrote:
>> This may be a dumb question, but is there any trick to removing  
>> the UFO
>> rotors?  This is the first UFO brake job for me.  I got the  
>> inboard pad
>> off with little trouble, then removed to screw from the rotor; but  
>> could
>> not get the rotor off.  Are you just supposed to be able to pull the
>> rotor off?  I haven't had a chance to pick up a Bentley, so I was
>> following the brake section from It really  
>> felt like
>> I was missing a step.  No matter how much I wiggled and pulled, the
>> rotor did not seem to want to clear the lip of the hub.  It also  
>> did not
>> help that I was attempting this from the not really level parking  
>> lot of
>> my apartment complex.  If anyone would shed some light on this, I  
>> would
>> greatly appreciate it.  Thanks.
>> Kevin
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