MINI2

swamos · Dec 12th, 2003, 11:47 PM

Just went for a drive this morning, and I am getting pulsating through the pedal under heavy breaking. This usually means that the rotors have become out of round, so they need machineing.

So, my question is how do you remove the front rotors? The site miniguide.org has some excellent instructions on removing and repainting calipers and discs. It is just a little vague on the removing the rotor bit.

I have replaced pads before, and I didn't see the rotors falling off on my foot like they do on some cars. Would I be right in saying that once the caliper is removed, they need a little help with a rubber mallot?? Ie, a little knock off?

Thanks

Polmear · Dec 16th, 2003, 01:12 PM

Unless there is a threaded bolt holding the rotor to the hub, a small knock or two with the rubber mallet should drop them quickly onto your toes

Haven't looked at mine, but most rotors are the same-the only thing holding them on is the wheel and lugs.

BTW machining rotors can induce problems that didn't exist before turning. You should also replace your pads if you do turn the rotors.

Root Ginger · Dec 16th, 2003, 01:52 PM

There is a more detailed guide on northamericanmotoring.com here . As far as I'm aware there is one screw holding the rotor in place but this will be obvious when the wheel is removed.

After that bang that baby with your best rubber mallet

swamos · Dec 16th, 2003, 10:10 PM

Thanks guys

Tha pads have only done 15k (10k miles), so do you think they should be ok. They look near new. I think they are what warped the disk in the first place when they got hot while running in

obehave · Dec 16th, 2003, 10:26 PM

Quote: Originally Posted by swamos

Thanks guys

Tha pads have only done 15k (10k miles), so do you think they should be ok. They look near new. I think they are what warped the disk in the first place when they got hot while running in

Never use old pads on new or freshly turned rotors.
Get new pads.

swamos · Dec 16th, 2003, 10:33 PM

Quote: Originally Posted by obehave

Never use old pads on new or freshly turned rotors.
Get new pads.

Do you understand my problem, though?? I'm 90% sure that the other pads were what caused the problem in the first place, so if I get new pads, then I'm in trouble again??

Polmear · Dec 17th, 2003, 12:22 PM

If the old pads have taken on any of the runout characteristics of the warped rotors, they can easily transfer those back and set your fresh rotors out of round. Viscious cycle, easily broken with new pads.

obehave · Dec 17th, 2003, 12:43 PM

Quote: Originally Posted by swamos

Do you understand my problem, though?? I'm 90% sure that the other pads were what caused the problem in the first place, so if I get new pads, then I'm in trouble again??

Sorry, I didn't really do a good job there. Like polmear said as well. Pads and rotors need to be done together. All new at the same time. Inaccuracies in either part of the set can transfer to the other. Pretty much ruining them.

Here's one of the best articles I've read on how to bed in new brakes. Just thought I'd toss that in

swamos · Dec 17th, 2003, 05:14 PM

Quote: Originally Posted by obehave

Sorry, I didn't really do a good job there. Like polmear said as well. Pads and rotors need to be done together. All new at the same time. Inaccuracies in either part of the set can transfer to the other. Pretty much ruining them.

Here's one of the best articles I've read on how to bed in new brakes. Just thought I'd toss that in

That's a good spiel. Thanks

It's actually very similar to the story that comes with the EBC brake pads. I've got a feeling that I failed on the 5th step, due to the area that I had to do it in. I'll see how I go with it guys. Machining is quite cheap, so I may give that a go. If all goes bad, then I'll just have to buy new rotors and pads

I'll let you know how successfull I am.

Dec 12th, 2003, 11:47 PM	#1
swamos MINI Traitor Join Date: Mar 2002 Location: Brisbane, Australia Local Time: 01:48 PM Posts: 5,548 Offline	How to remove and replace front rotors Just went for a drive this morning, and I am getting pulsating through the pedal under heavy breaking. This usually means that the rotors have become out of round, so they need machineing. So, my question is how do you remove the front rotors? The site miniguide.org has some excellent instructions on removing and repainting calipers and discs. It is just a little vague on the removing the rotor bit. I have replaced pads before, and I didn't see the rotors falling off on my foot like they do on some cars. Would I be right in saying that once the caliper is removed, they need a little help with a rubber mallot?? Ie, a little knock off? Thanks

Dec 16th, 2003, 01:52 PM	#3 (permalink)
Root Ginger Amiga 500 to PS3 20 Years Join Date: Jul 2001 Location: Slough, Berkshire Local Time: 04:48 AM Posts: 4,673 Offline	There is a more detailed guide on northamericanmotoring.com here . As far as I'm aware there is one screw holding the rotor in place but this will be obvious when the wheel is removed. After that bang that baby with your best rubber mallet It was acceptable in the 80's

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Dec 16th, 2003, 01:12 PM	#2 (permalink)
Polmear MINI2 Regular Join Date: May 2003 Location: Michigan Local Time: 11:48 PM Posts: 276 Offline	Unless there is a threaded bolt holding the rotor to the hub, a small knock or two with the rubber mallet should drop them quickly onto your toes Haven't looked at mine, but most rotors are the same-the only thing holding them on is the wheel and lugs. BTW machining rotors can induce problems that didn't exist before turning. You should also replace your pads if you do turn the rotors.

Dec 16th, 2003, 10:10 PM	#4 (permalink)
swamos MINI Traitor Join Date: Mar 2002 Location: Brisbane, Australia Local Time: 01:48 PM Posts: 5,548 Offline	Thanks guys Tha pads have only done 15k (10k miles), so do you think they should be ok. They look near new. I think they are what warped the disk in the first place when they got hot while running in

Dec 16th, 2003, 10:26 PM	#5 (permalink)
obehave Mini Mod Join Date: Sep 2002 Local Time: 11:48 PM Posts: 9,388 Offline	Quote: Originally Posted by swamos Thanks guys Tha pads have only done 15k (10k miles), so do you think they should be ok. They look near new. I think they are what warped the disk in the first place when they got hot while running in Never use old pads on new or freshly turned rotors. Get new pads.

Dec 16th, 2003, 10:33 PM	#6 (permalink)
swamos MINI Traitor Join Date: Mar 2002 Location: Brisbane, Australia Local Time: 01:48 PM Posts: 5,548 Offline	Quote: Originally Posted by obehave Never use old pads on new or freshly turned rotors. Get new pads. Do you understand my problem, though?? I'm 90% sure that the other pads were what caused the problem in the first place, so if I get new pads, then I'm in trouble again??

Dec 17th, 2003, 12:22 PM	#7 (permalink)
Polmear MINI2 Regular Join Date: May 2003 Location: Michigan Local Time: 11:48 PM Posts: 276 Offline	If the old pads have taken on any of the runout characteristics of the warped rotors, they can easily transfer those back and set your fresh rotors out of round. Viscious cycle, easily broken with new pads.

Dec 17th, 2003, 12:43 PM	#8 (permalink)
obehave Mini Mod Join Date: Sep 2002 Local Time: 11:48 PM Posts: 9,388 Offline	Quote: Originally Posted by swamos Do you understand my problem, though?? I'm 90% sure that the other pads were what caused the problem in the first place, so if I get new pads, then I'm in trouble again?? Sorry, I didn't really do a good job there. Like polmear said as well. Pads and rotors need to be done together. All new at the same time. Inaccuracies in either part of the set can transfer to the other. Pretty much ruining them. Here's one of the best articles I've read on how to bed in new brakes. Just thought I'd toss that in

Dec 17th, 2003, 05:14 PM	#9 (permalink)
swamos MINI Traitor Join Date: Mar 2002 Location: Brisbane, Australia Local Time: 01:48 PM Posts: 5,548 Offline	Quote: Originally Posted by obehave Sorry, I didn't really do a good job there. Like polmear said as well. Pads and rotors need to be done together. All new at the same time. Inaccuracies in either part of the set can transfer to the other. Pretty much ruining them. Here's one of the best articles I've read on how to bed in new brakes. Just thought I'd toss that in That's a good spiel. Thanks It's actually very similar to the story that comes with the EBC brake pads. I've got a feeling that I failed on the 5th step, due to the area that I had to do it in. I'll see how I go with it guys. Machining is quite cheap, so I may give that a go. If all goes bad, then I'll just have to buy new rotors and pads I'll let you know how successfull I am.

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