Today tried to renew my discs and pads. Pretty straight forward eh? Everything removed after the destruction of a socket and much hammering and fire.
I removed the 4 allen key bolts from the back of the disc attaching it to the hub and expected everything to fall away at this point. Nothing. Not even a creak, so I hammer away with harder hammers and still nothing seperates. I've even tried hammering the two screwdrivers in from the side as you can see below. Both of these are now stuck so I'm happy that they are hammered in enough. Which way is the disc meant to come away? I'm guessing backwards but it appears that the part of the hub that extends towards the car (as seen on the left hand one below) is too thick for the disc to part that way.
Have I missed something catastrophically important or are they just rusted solid? What are my options? I'm not panicking too much because I can just put new pads on without a disc change. However I'd rather not:
It is hard to get them out you need to use the right technique, unlike other cars they do not fall off when unbolted. Not sure I remember what way it comes apart, but basically use blocks of wood and a big hammer.
Set the disk on 2 blocks of wood that are high enough to keep the studs off the ground, put another block of wood on the hub. Then hit the top bit of wood with a very large hammer. Possibly another thin piece of wood under the stud to protect them when they fall out, and maybe some tissue in the hole for the stub axle to stop dirt getting in. I use a full sized sledge hammer.
If you get really stuck just smash the disk with a hammer, it will shatter but risks damaging the bits you are keeping.
