I am replacing the rear wishbones as the bushes are split and leaking. Having gone down the route of swapping bushes in the past and found it to be painful I purchased new wishbones (and toe adjustment tiebars and anti-roll bar drop links). I have the rear 4 pot caliper off and the Ebrake caliper off and have removed the clips that were over two of the brake studs. Rear rotor seems to be rusted on. I have tapped it with a rubber face hammer and put modest amounts of penetrating flid down the hols where the studs come through and around where the rotor and wheel bearing assembly appear joined.
Are there any tricks to getting this rotor off? Short of beating on it or welding something to it
(2008 XKR 4.2 Alcon brakes ~50k miles).

Thanks Beardy

 

You can try GENTLY heating the area between the studs and the centre of the hub with a propane torch.

When you install the new disc, sparingly put anti-seize compound between the hub face and back of the disc.

 

Another trick I saw was to use wax from a candle in place of penetrating fluid, as you are using the torch, apparently wax penetrates further.
Make note to thoroughly de-grease face of rotor when reassembling.

 

Use a medium weight ball peen hammer and using the round end hit in between the studs. You may have to wack it but hit between each stud. Object is to break the rust free.

 

For me what finally did the trick was putting the disk under a load, then hitting the side of the disk hub with a hammer.

You can use 2 C-clamps. Clamp the face of the disk against the caliper bracket and tighten it as much as you can. You may want to use something between the bracket and the other end of the clamp, I used a piece of hockey stick since its flat and fit nicely in there.

Once I put it under a load it literally popped right off with 1 hit.

 

Of course the calipers and rotors do not have to be removed to replace any of the CA’s or bushings... Just saying

 

They appear to need it on this one. I can't withdraw the bolt from the lower outer wishbone / upright connection with the rotor on.

Many thanks for all the suggestions. I will attack it with renewed vigor this morning.
Beardy

 

Must be the Alcons...

 

Many thanks to all. Success!
I used some spare wheel nuts to space a new rotor off the original disc and then clamped them together as a makeshift puller and then whacked it. It came loose pretty quickly.
cheers
Beardy

 

common option is soak the rotor in brake cleaner, this always works for me...