Rear brake disc seized on hub - tips?

[stevesey]

Took daughter for sking lessons at Gloucester today. Thought I'd change the rear disc and pads in the car park before sking myself. All came apart nicely except that the disc is seized onto the hub - so reassembled and skied for longer than I was intending - how knackered, heading for a bath and a beer.

Anyway will have another look tomorrow at home - anyone any tips for feeing the disc, or is it just a case of hitting it harder (I did give it some solid blows with a rubber mallet).

 

[Sp!ke]

Block of wood and clubhammer required.

Actually, if you are replacing the disk anyway, dont bother with the block of wood, just belt it.

 

[GordonTarling]

When I changed my rear discs, I resorted to a looong piece of 4 x 2 which I manoeuvered into position from the other side of the car, then whacked seven shades of u-know-what out of it with a big lump hammer.

 

[Frank O' Phile]

...... or is it just a case of hitting it harder (I did give it some solid blows with a rubber mallet).

Get a bigger hammer.

 

[grober]

Make sure the little internal handbrake shoes are well backed off before attempting to remove the rear discs. Make sure the little disc retaining screw/s are removed also. Belting it with a hammer is often required but don't just hit it in one part of the disc. Your disc contact point is restricted a bit by the brake back plate of course. A couple of sharp blows and then rotate the disc a bit by hand is best. As a last resort people have to resort to angle grinders or hacksaws. Hopefully not in this case.

 

[Number_Cruncher]

I would err towards cutting the old disc rather than hammering - it's quite easy to damage the wheel bearing by hammering the disc. If you do damage the bearing, it probably won't fail immediately, but after a few thousand miles.

 

[Rory]

Thought I'd change the rear disc and pads in the car park

Random!

 

[stevesey]

Random!

Good use of time - also spent some time testing/writing some OBD software.

Anyway job done now (+ braided hoses on the rear and a partial change of brake fluid) - used a long bit of 2*2 across the width of the car like Gordon suggested, makes for a more comfortable hammering position. Let a little WD40 soak in first (being careful about getting it near the handbrake of course) and things were sorted after a few repeats of the hammer/rotate/hammer cycle.

Discs came with a note/picture saying not to remove the gray coating beforehand, but nothing on how to drive to remove this/bed in. Planning on going for the normal take it easy for the first few miles, then some steady stops etc.