Spencer wrote on 19-02-2006 :
That is reasonably even wear....
Drinkdriver 'can't recall' crashA young driver, who was so drunk that he could not remember knocking down a pedestrian in a hit-and-run accident, has been jailed for 12 months. Mark Hubbard, 19, from Welshpool, drove erratically...
It sounds as if the piston is sticking out, once it is pushed out by hydraulic pressure - and-or the caliper is not free to slide to balance up the braking between the two pads of that wheel. The way it works is that you push the pedal which forces the pad against the disk, then when you release the pedal the pad is forced away from the disk by the tiny amount of misalignment of the disk pushing the piston back slightly, just enough to provide clearance. Any friction preventing the piston going back, will cause rapid wear and heat buildup on the pad-disk.
Electronic handbrakesTo someone who is used to doing hill starts without the handbrake this never causes a problem. When parking on a steep hill you *always...
If I change a set of pads, then I always ensure the piston is perfectly free to move. I use a G clamp held over the piston to prevent it popping all the way out, by an buttistant. I then pump the piston out a little at a time gradually releasing the G clamp - until the piston is as far out as it can be got without loosing fluid. You may need to remove the dust seal first, to be able to see this point.
I then make sure the piston is spotlessy clean - clear of any dust and-or rust. Before I push it back in the final time I smear a little brake grease around the piston, then finally fit the dust seal. Working properly, it should be possible to push it back in with little more than finger pressure.
I also ensure the caliper is free to slide to adjust itself to the inside outside pad differences, if the caliper is designed to do this.
You should always make sure that what you do to one side, you do the same to both sides. New pads on both, new calipers on both, new disks on both side etc..
Fitting new a caliper is not that difficult. They are fairly straight forward mechanically, you just need to make sure you bleed out the air completely once the new one is fitted.
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Regards, Harry (M1BYT) (L)
