My old disks won't come off - suggestions please

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Gerry
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My old disks won't come off - suggestions please

Post by Gerry »

I pounded on the old disks, heated them up, lubed them and those bastards will still not budge, I assume that they are rusted in place but I would like to know if I am missing something.

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Post by Legacy777 »

You need to heat them up more. You'll probably need something more then a propane torch, MAP Gas or an oxy acetelene torch.

I did the brakes & rotors on my old boss's eclipse. Had to use an oxy acetelene torch. I banged on those things for a while before doing that.
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Post by 86ruguy »

You need to get a BIGGER HAMMER and hit the center area of the rotor.
I have done hundreds of brake jobs and never had to use heat.

Maybe a little WD40 on the hub area but never had to use heat.

BTW...when I say bigger hammer I mean like a mini sledge hammer.
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Post by vrg3 »

First, if you're talking about the rear brakes, make sure the parking brake is off.

Then, get two M8x1.25 bolts. The brake discs have threaded holes in them for exactly this purpose. Thread them into the holes evenly until the discs pop off the hub.
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Post by 555BCTurbo »

Yeah, I made a puller for doing mine...out of a piece of flatbar and 2 bolts...took all of 5 minutes...and works great
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Post by New92 »

vrg3 wrote:First, if you're talking about the rear brakes, make sure the parking brake is off.

Then, get two M8x1.25 bolts. The brake discs have threaded holes in them for exactly this purpose. Thread them into the holes evenly until the discs pop off the hub.
+1 - works perfectly.
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Post by DLC »

I used the bolt trick on my rear rotors this summer and it did the trick perfectly.
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Post by Gerry »

My rotors don't appear to have these holes, which kind of stinks.

So I guess I am back to heat and hammering.
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Post by evolutionmovement »

I can't imagine what Chinese junk (the cheap crap, not the boats) wouldn't have the holes. Spray the hell out of it with some good penetrant - Zep is the best, but PB Blaster is easy to find and let it sit for a day or two, maybe reapplying a few times in between. Thread a lug nut or two on the bolts and whack it as you rotate it from the back. Bearings don't like heat, so be careful going that route.

It's not a bad idea to put some grease on the back of the new rotors to keep them from bonding.
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Post by 92ss satinsvoice »

New92 wrote:
vrg3 wrote:First, if you're talking about the rear brakes, make sure the parking brake is off.

Then, get two M8x1.25 bolts. The brake discs have threaded holes in them for exactly this purpose. Thread them into the holes evenly until the discs pop off the hub.
+1 - works perfectly.

i did the same thing. much better then risk warping other components with heat or weakening them.
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Great news, I got the disk off!!

Post by Gerry »

Purchased

2 x can "3 and 1" Penetrating Lubricant (in the orange can)
1 x 4lb sledge hammer

It dawned on me that if I were turn the wheels that I would have a better vantage point as the car is not jacked up too high. If you feel behind the disk there is a ring of teeth that match up with the hub. I sprayed a lot of the lube in there over a two day period. Then I pounded the perimeter of the disk with the sledge. Then I gave it about 20 good wacks on the back while rotating the disk. Then hammered one side of the front until finally I saw it move.

So I again started rotating the disk while hitting from behind and then it finally came off.

God love the sledge hammer, it makes a man feel mighty.

I am including some before and after pics (they were taken with my phone so the quality isn't all there.)



Image

This picture is blurry but you can still tell what I am dealing with

Image

No wonder it gets corroded the hub isn't solid. Water and salt have an open door. I wire brushed the hub down then I coated the perimeter with anti-seize. I shouldn't have the problem again.

Image

Here is a close up of the corrosion in my disk, it's way worse than what the picture displays

Image

Here is my new disk and pads, I am a happy man.
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Post by 86ruguy »

AHHHHH!!!!!!! :D

The spoils of sucess.
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Looks good!! :smt038
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Post by vrg3 »

Ack, your new discs also lack those threaded holes! Didja put antiseize on the hubs?
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Post by 86ruguy »

QUOTE"I wire brushed the hub down then I coated the perimeter with anti-seize. I shouldn't have the problem again." UN QUOTE
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Post by vrg3 »

I'm awesome at reading, and am never distracted by pretty pictures.
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Post by asc_up »

vrg3 wrote:I'm awesome at reading, and am never distracted by pretty pictures.

Hahahaha. I hate it when that happens.
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Post by Gerry »

The rear disks have holes.
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Post by subytech »

86ruguy wrote:You need to get a BIGGER HAMMER and hit the center area of the rotor.
I have done hundreds of brake jobs and never had to use heat.

Maybe a little WD40 on the hub area but never had to use heat.

BTW...when I say bigger hammer I mean like a mini sledge hammer.
I would only do this as a last result, banging that hard on the hub can do bad things to a wheel bearing.
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Post by 86ruguy »

That's funny because I've been doing it for 25 years and never had any trouble
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Post by subytech »

Guess your lucky then I've seen it happen a couple of times, all be it on newer models but still.
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