Rotors welded on?

3478 Views 20 Replies 8 Participants Last post by SyStEmOfEvIl, May 18, 2011

flipmode64

Discussion Starter · Aug 16, 2010

Hey,

Trying to do my brakes today and can't get the rotor off. I've read that you have to use a 34756 Lbs hammer to get them off, but this seems to be different.

Oh ya, I snapped all five lugs nuts off with the threads inside of them (front drivers).

If you look in the 5 rotor holes it looks as if the thread and the rotor have welded itself together.

The front brakes were shaking hard before I was trying to change them.

How come all the threads snapped? It took very little force the bust the threads in half. And can you replace just those threads or need a new hub?

Thanks

95' Avalon XLS
296,xxx km

1 - 20 of 21 Posts

BMR

· #2 · Aug 16, 2010

Sounds like some monkey with an air wrench tightened the lug nuts WAAAAYYYY too tight!

Yes, the lug bolts can be replaced. You can just hammer them inward. There's a press fit spline that holds them in. When you get the new lug bolts, just use a wrench on a lug nut to pull them into their press-fit holes.

The rotor isn't welded on. Probably just rusty. Spray some penetrating oil on it; like PB Blaster or Liquid Wrench. There should be a couple of tapped holes that you can thread a screw into - use them to push the rotor off. I don't recall what thread size they are. Metric, no doubt.

You *do* have the brake caliper removed, right? If not, that needs to come off before the rotor will.

Reactions: 1

flipmode64

Discussion Starter · #3 · Aug 16, 2010

BMR said:
Sounds like some monkey with an air wrench tightened the lug nuts WAAAAYYYY too tight!

Yes, the lug bolts can be replaced. You can just hammer them inward. There's a press fit spline that holds them in. When you get the new lug bolts, just use a wrench on a lug nut to pull them into their press-fit holes.

The rotor isn't welded on. Probably just rusty. Spray some penetrating oil on it; like PB Blaster or Liquid Wrench. There should be a couple of tapped holes that you can thread a screw into - use them to push the rotor off. I don't recall what thread size they are. Metric, no doubt.

You *do* have the brake caliper removed, right? If not, that needs to come off before the rotor will.

Thanks for the quick reply.

I have sprayed on lots of pb blaster already but I will do some more tonight.

I will try the two screws up front tomorrow on the rotor to see if that helps.

Yes the caliper is off

Is there a toyota part number for the lug bolts that you have ?

flipmode64

Discussion Starter · #4 · Aug 16, 2010

90942‑02049 - BOLT, HUB (FOR FRONT AXLE LH)

Is what I just ordered.

Any tips for taking the other front tire off without breaking the bolts?

I have a feeling it's going to do the same thing.....

Thanks.

futejia

· #5 · Aug 16, 2010

spray it up with PB blaster the night before, and spray some more when trying to remove those lugs...

good luck, if it breaks just order new ones.

as for the rotor, just sledge the crap out of it. I Had multiple experiences where i actually had to cut the rotor in 1/3s to pop it off.

flipmode64

Discussion Starter · #6 · Aug 16, 2010

futejia said:
spray it up with PB blaster the night before, and spray some more when trying to remove those lugs...

good luck, if it breaks just order new ones.

as for the rotor, just sledge the crap out of it. I Had multiple experiences where i actually had to cut the rotor in 1/3s to pop it off.

I guess I can buy more, but at 5$ a bolt its a rip off.

Should I be putting a ratchet on and then giving it a good kick with a hammer or is that worse then slowly putting force with my torque wrench?

futejia

· #7 · Aug 16, 2010

call your local parts store, not dealer. its all the same crap. really.

artbuc

· #8 · Aug 16, 2010

The holes are 8mm x 1.25 pitch thread. You can go to any hardware store and get them. If the threads are filled with dirt and rust, take your time and turn them in a litlle and back out until all is clear. Just a little force on the 8mm bolts will pop off the most stubborn rotor. Please do not beat them with a hammer. It is not necessary and could easily dmaage other parts.

Reactions: 1

futejia

· #9 · Aug 16, 2010

if you are afraid of damaging the hub bearing... well, yeah dont beat on it, but i dont have a problem with it. did it for over 4 years. lol

use the bolt, its the "proper" way.

flipmode64

Discussion Starter · #10 · Aug 16, 2010

artbuc said:
The holes are 8mm x 1.25 pitch thread. You can go to any hardware store and get them. If the threads are filled with dirt and rust, take your time and turn them in a litlle and back out until all is clear. Just a little force on the 8mm bolts will pop off the most stubborn rotor. Please do not beat them with a hammer. It is not necessary and could easily dmaage other parts.

Thanks for the good info. I have read numerous posts online about people using sledgehammers and presses to take them off so I didn't think it would be able to do it with a small screw.

I'll let you guys know later tonight.

Thanks again

flipmode64

Discussion Starter · #11 · Aug 16, 2010

artbuc said:
The holes are 8mm x 1.25 pitch thread. You can go to any hardware store and get them. If the threads are filled with dirt and rust, take your time and turn them in a litlle and back out until all is clear. Just a little force on the 8mm bolts will pop off the most stubborn rotor. Please do not beat them with a hammer. It is not necessary and could easily dmaage other parts.

So just to clarify, you're saying to put screws in the two smaller holes on the rotor and put them in slowly so its pushing against the hub? and it will separate the two? its as easy as that ?

artbuc

· #12 · Aug 16, 2010

futejia said:
if you are afraid of damaging the hub bearing... well, yeah dont beat on it, but i dont have a problem with it. did it for over 4 years. lol

use the bolt, its the "proper" way.

It is also a heckuva lot easier. When you get my age, turning a bolt is much easier than breakin' out the sledge!

artbuc

· #13 · Aug 16, 2010

flipmode64 said:
So just to clarify, you're saying to put screws in the two smaller holes on the rotor and put them in slowly so its pushing against the hub? and it will separate the two? its as easy as that ?

Yep! It is the power of the inclined plane. Alternate between the two 8mm bolts and she will pop right off. Again, make sure the threads are cleaned out before you apply too much torque.

Reactions: 1

TacoMike45

· #14 · Aug 16, 2010

Flipmode64,how about 2.52 ea for lug studs plus actual shipping charges from a toyota dealer?

flipmode64

Discussion Starter · #15 · Aug 16, 2010

oolagotz said:
Flipmode64,how about 2.52 ea for lug studs plus actual shipping charges from a toyota dealer?

What do you mean?

I called my local Toyota dealer and they said it was $5.60 for one lug stud.

TacoMike45

· #16 · Aug 17, 2010

Flip,i'm offering you these for 30% off list price straight from our dealer parts inventory.

sonic2wb

· #17 · Aug 19, 2010

tacomike = toyotapartsman?? just wondering

fourwheeler

· #18 · Aug 20, 2010

Voice of experience here, if you pound too hard on the rotor from the back side, you can take half of your wheel bearing out with it. Funny how I know this.

I'd use the bolt method. Worked great for me. Just turn each a little at a time until the rotor pops off.

artbuc

· #19 · Aug 22, 2010

flipmode64 said:
Hey,

Trying to do my brakes today and can't get the rotor off. I've read that you have to use a 34756 Lbs hammer to get them off, but this seems to be different.

Oh ya, I snapped all five lugs nuts off with the threads inside of them (front drivers).

If you look in the 5 rotor holes it looks as if the thread and the rotor have welded itself together.

The front brakes were shaking hard before I was trying to change them.

How come all the threads snapped? It took very little force the bust the threads in half. And can you replace just those threads or need a new hub?

Thanks

95' Avalon XLS
296,xxx km

Progress report?

flipmode64

Discussion Starter · #20 · May 17, 2011

artbuc said:
Progress report?

Rotor came off VERY EASY using the screw method on the rotor. Had to replace all 5 lug bolts which were around $2 a piece I think. Used the circle end of a screw driver over the bolt, then threaded a lug over it to pop the lug bolt into the hub, pretty easy.

other than that thanks for all the help!

1 - 20 of 21 Posts

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