Brake Pad Pin Removal Problems?
With the first MOT (annual inspection starting when 3 years old) coming up, I decided to change the front pads. What an absolute pig of a job. Getting the caliper off and pushing the pistons back is easy enough. Take car mind, the fluid goes back into the reservoir with some pressure and will spray over the paintwork if you don’t lay a rag over the reservoir. The BMW manual says to drive the pin out with the caliper on the bike (having pulled the pin out), but this proved impossible. Removing the caliper showed the problem. The pin is untreated steel with a monkey metal bush at the head end, the caliper is aluminium. As grease is an alien concept to BMW, both the tapered end of the pin and the bushed end had seized solid. No amount of hammering or even a 3 tonne press at work would shift it, although I did manage to compress a tool steel press pin by about 2mm (don’t tell the workshop manager!). The solution was as follows, but requires a bit more equipment than most people will have.
