I'd advise getting someone who knows what the crack is to do it for you mate, doesn't sound like you're too clued up and where the brakes are concerned you really don't want to take any chances.
A guy who works In our department at work usually comes in on a morning and tells me he has problems with his car (corsa 05 1.2) and he knows **** all. I usually go out tell him what's wrong and he gets it sorted. Didn't even know what tyre sized he wanted to the other day.
He came in today and said I sorted my brakes out (pads ridiculously low) and I said oh right who did them for you his reply was me. He said he wasn't wasting anymore money on people fixing his cars so he did it him self. I sat him down as I didn't believe him and said tell me what you did then.
He started off saying well I undid the wheel with one of the crowbar things (great start) undid two bolts at the back and took the brake off. I then took the pads out, pumped the pedal :-/ and then put the new pads in, pumped the pedal again and put the brake back on and the bolts.
How he got to work today with that explanation I will never no, or how the **** he got the piston to go back in. Lol.
Made my morning.
Moral of the story.....don't do it yourself.
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