Question removing rotors

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03-30-2005, 10:52 PM
Jiggerachi

Question removing rotors

I am thinking about getting my front rotors turned this weekend, theyre warped like whoa. I have heard about how diffiicult the Civic rotors are to get off due to the small screws that are on so tight you need an impact wrench to remove them, if that works, most people just end up drilling them through to get the rotor off.

I am wondering if there is any difficulty of this nature in removing the '94 Miata rotors.

A quick search on the Miata board brought up this thread...
http://forum.miata.net/ubb/ultimateb...=039160#000000
Do the front rotors have this threaded hole for pressing the rotors off if theyre rusted?? Because I have a fear that they will be, as referenced by my previous problem of the wheels being rusted to the hubs. On the civics, this hole has the infamous screw I was referring to.

Any particular shops you guys can recomend around the Addison/Carrolton area?? I have a shop my friend reccomended that I will call tomorrow.

Oh yea, while im down there is there any other maintenance that should be taken care of on a 100k+ car??

Thanks guys.
03-30-2005, 10:58 PM
TurboDuane

Re: Question removing rotors

Quote:

Originally Posted by Jiggerachi

http://forum.miata.net/ubb/ultimateb...=039160#000000

Looks like they pretty much covered it. Nor do I have a recommendation on shops for this, sorry.

I know...wasted post :oops:
03-30-2005, 11:06 PM
Jiggerachi

Hehe, its all good, I just want to know so I dont waste the time taking off the wheels this weekend.
03-31-2005, 09:14 AM
altiain

I've never had a problem with removing the OEM rotors on my '99, and yes, they did have that threaded hole for removing them. The '99 has the exact same brakes as a '94-'97, so it would be a safe bet to assume that yours are the same.
03-31-2005, 10:38 AM
Miatamaniac92

The hole threaded is the same dimensions as the Bolt that holds the spare and jack down. Ask me how I know. :lol:

Chris
03-31-2005, 10:54 AM
black roadster

Then there is always a BFH.
03-31-2005, 10:57 AM
Screamin'Screw

I alway put a VERY thin layer of caliper grease on the new calipers to prevent seizing to the hubs.
04-20-2005, 07:55 AM
Miatamoto

I just changed my rotors on the Miata for the first time earlier this month. The rotors were rusted on and no matter how big the BFH was I couldn't get them off, but using the bolt that holds down the spare did.

When they pop off they make a surprisingly loud pop.
04-20-2005, 08:29 AM
channelmaniac

I changed the front rotors on the 92B&T and it was as easy as one smack with a deadblow hammer and they popped right loose.

You can take your rotors down to many autoparts stores to get 'em turned... just remember to make sure to check the thickness with a caliper. If you turn 'em down too far you'll need to replace them.

RJ
04-20-2005, 08:53 AM
carguychris

Re: Question removing rotors

Quote:

Originally Posted by Jiggerachi

I am thinking about getting my front rotors turned this weekend, theyre warped like whoa. I have heard about how diffiicult the Civic rotors are to get off due to the small screws that are on so tight you need an impact wrench to remove them, if that works, most people just end up drilling them through to get the rotor off.

No, Miatas do not have the evil little screws that Civics have. I used to own a CRX, so I know all about them. :evil: FWIW I was always able to remove the screws by whacking them counterclockwise with a sharp-edged cold chisel; I never had to drill them out. However, I removed the rotors on a regular basis due to track use, so I could understand how you could have bigger problems with a high-mileage street car.

Also, I am a believer in the philosophy that if your Japanese car has warped rotors, you should replace them, not turn them. Turned rotors will frequently re-warp. Plus, if your car has 100k+ miles, the rotors are probably toast anyways. If the rotors are still good and you REALLY want to turn them, get it done using one of the machines that turns the rotor while it's installed on the car. However, getting back to my previous point... turning the rotors removes material (duh), and even if the rotors were OK when you started, they may be too thin by the time they've been turned enough to fix the warp. :(
04-20-2005, 09:13 AM
Jiggerachi

^Yea ive recently abandoned the idea of turning them.
I am eyeing a set of Brembo Blanks
04-20-2005, 10:08 AM
Screamin'Screw

94+ Rotors do have the screw. 93- do not.
04-20-2005, 10:09 AM
Screamin'Screw

Those are nice rotors and considering it cost about $25 per rotor to turn. It seems obvious.
04-20-2005, 10:55 AM
Jiggerachi

^Pep boys will do it for $6 /rotor, but I question their quality...
04-20-2005, 11:26 AM
POS Racing

Quote:

Originally Posted by Screamin'Screw

94+ Rotors do have the screw. 93- do not.

My '92 has the screw hole to pop the rotors off, and so did my Brebo Replacement rotors. :?
04-20-2005, 01:18 PM
black roadster

Quote:

Originally Posted by Jiggerachi

^Pep boys will do it for $6 /rotor, but I question their quality...

Quality? How can you screw it up? Most Auto Parts stores have a machine that turns them automatically. Idiot proof.
04-20-2005, 08:06 PM
Jiggerachi

Hmmm...yea, good point.

I still think these rotors are toast though, they shake like a mofo, id rather get a new set, who knows if these have been turned or not.
06-28-2011, 08:08 PM
Monster

Any idea of the size of the screw that fits in the rotor? My car didnt come with a spare tire, or screw, or even carpet for that matter. I dont mind going to the hardware store and buying a bunch of sizes of screws but I would rather make one trip, and I know Murphy and his law will not allow this.

Thanks
06-29-2011, 10:00 AM
POS Racing

I think it is an M8 x 1.25 but I could be wrong. I've always used the bolt from the spare or the jack if needed (and it isn't always needed).
06-29-2011, 10:03 AM
Titus

I have never needed more than a tap from my rubber mallet.
06-29-2011, 10:36 AM
Rob®

Quote:

Originally Posted by black roadster

Quality? How can you screw it up? Most Auto Parts stores have a machine that turns them automatically. Idiot proof.

Eh, I disagree. When I worked at a shop in NJ with a rotor cutter, there was a kid working there that couldn't cut a rotor to save his life. Yes, it's a VERY basic machine, but there are plenty of ways to screw it up if you try hard enough.
06-29-2011, 10:41 AM
goofygrin

For the Miata, rotors are so cheap, just buy new ones from Napa. I think they are actually cheaper (or damn near) than the cutting IIRC.
06-29-2011, 11:21 AM
Rob®

Quote:

Originally Posted by Jiggerachi

Oh yea, while im down there is there any other maintenance that should be taken care of on a 100k+ car??

Just take a peek at the usual things: brake lines, ball joint boots, all the bushings in the area, axle boots in the rear, shocks for leakage...basically at least glance at any wear item.

Anytime I have the wheels off the ground I check the tie rods, wheel bearings, and ball joints using the "shake test."
06-29-2011, 11:47 AM
POS Racing

Quote:

Originally Posted by Rob®

Just take a peek at the usual things: brake lines, ball joint boots, all the bushings in the area, axle boots in the rear, shocks for leakage...basically at least glance at any wear item.

Anytime I have the wheels off the ground I check the tie rods, wheel bearings, and ball joints using the "shake test."

Rob® keep up the good work answering a questions from 2005! :clap:

Hey Red Frontier there is no charge to make a new post on this forum, give it a try its fun! ;-)
06-29-2011, 12:10 PM
Rob®

Quote:

Originally Posted by POS Racing

Rob® keep up the good work answering a questions from 2005! :clap:

Umm...it was for search purposes.
06-29-2011, 03:48 PM
Jiggerachi

Quote:

Originally Posted by POS Racing

Rob® keep up the good work answering a questions from 2005! :clap:

Hey Red Frontier there is no charge to make a new post on this forum, give it a try its fun! ;-)

:punchout: Haha. I saw this thread this morning and thought, I don't remember opening this...

FWIW the rotors came off easily if I remember correctly. Replaced with NAPA blanks.
06-29-2011, 08:46 PM
Monster

Quote:

Originally Posted by POS Racing

I think it is an M8 x 1.25 but I could be wrong. I've always used the bolt from the spare or the jack if needed (and it isn't always needed).

Thanks that was a perfect fit. Rotors are off, taped, and ready for paint.
06-29-2011, 08:56 PM
black roadster

Quote:

Originally Posted by Rob®

Eh, I disagree. When I worked at a shop in NJ with a rotor cutter, there was a kid working there that couldn't cut a rotor to save his life. Yes, it's a VERY basic machine, but there are plenty of ways to screw it up if you try hard enough.

Yeah well that comment was over six years ago. I would never turn Miata rotors. Just buy new ones.