458 Removing the rotors on the 458

I am thinking of going steel rotors as well so it stops making noise every time I break. I live on the Vegas strip so don't need the high performance brakes.

 

Rotor removal is straight forward. Take wheel off, remove caliper, remove the wheel locater and the bolt retaining the rotor to the hub, slide it off carefully. Install is reverse of removal

 

15.5 nm for both according to the Ferrari WSM

 

Yes. 15 nm.

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Use the wheel hangers so you don't risk a disc sliding off.

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i have done the change to Giro, and it went well. They are much heavier. I needed to zip-tie the brake wear wires back as the new pads had no provision for them. I have tracked with them as well and they are good brakes.

 

I've removed my rotors to weigh them, etc. As far as the retaining screw, I'd recommend just going by feel and making sure it's tight. You don't need to go crazy with 15 vs. 17 Nm. A little blue loctite never hurts though.

Ray

 

The rotor retaining screw just holds the rotor in place while putting the calipers back on. It provides no real holding power while the car is in motion. Your lug nuts do that

 

On all my other cars I throw these things out. But on the Ferrari, or any CCB car you really don’t want a rotor falling off lol.

Wouldn’t worry too much about the torque spec. Treat it like a spark plug, just snug it up and you are good.

 

Two

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There is a bolt and then a "bolt / indexing pin" sort of deal (which is effectively the 2nd bolt).

As mentioned above, these aren't really what is holding the brake rotors on to your Ferrari; so the torque isn't really super important. The wheel lugs are what is holding everything together. The bolt & pin thing mainly just keep the rotor in place while you install the wheel and/or if you pull the caliper off for service. Without those two retaining bolts, the rotor would flop around inside the caliper when you remove the wheel and/or would probably slip off and fall to the ground should you remove the wheel and caliper.

But outside of keeping the rotor from falling off during work, they aren't really responsible for much else [especially once the wheel lugs are torqued down].

Ray

 

If you skip to around 6:00 minutes in this YouTube video, you can see the bolt and pin I'm talking about. It's the same on the 458 Italia:



Here's a screen shot also:

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As far as I remember, yes the caliper has to come off to remove the rotor. I think I tried just taking the pads out once and tried to slip the rotor out but I don't think it worked. However, I work on a lot of different vehicles so I might be remembering wrong. You don't need to remove the brake line however... just set the caliper to one side.

Ray

 

Like Ray said, you don't need to remove the lines.

Step 1. Remove the pads
Step 2. Remove the hose clip with a T27
Step 3. Remove the two M10 caliper bolts
Step4. Hang the caliper off to the side in a zip tie or the like so that the brake hose does not carry the weight of the caliper.
Remove the desc retaining screws. One 12 and one 13mm top is required.

That's it.

Install the new disc and do it all in reverse. Torque the caliper bolts to 100 nm.

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Are the rear rotas held on by the parking brake ?

 

Turn auto-park off before starting the job and make sure the parking brake is not engaged before shutting down and getting the car up in the air. The brake shoes will not prevent easy removal of the rear rotors.

 

Im trying to do this on my cali (same setup) with the EPB disengaged, but i cant get the rotor to come off. Its carbon ceramic. Any ideas? (i think its probably seized to the hub)

 

Very very carefully with a metal hammer smack the hub of the rotor. This will help break up the corrosion between the hub and the rotor hub.

 

Do you mean the central part of the rotor itself that bolts to the hub, stew?

 

Correct. DO NOT hit the carbon part of the rotor or it's toast.

Generally for penetrating oil I like to mix acetone and ATF 50-50, but I'd bet that's not supposed to go on carbon ceramics

 

Thanks - have you done this before on carbon rotors?

Also, would you recommend heat?