I'm in the process of building an e30 race car. i haven't put up any good tech yet so i thought i'd give it a shot. feel free to read about the build if you'd like.
1. start with a clean work surface
2. clean your bench and lay out your rebuild kit(s)
3. on the rear calipers, remove the retaining ring
3. pull the ring and boot off
4. if you have compressed air, shoot a little into the brake line hole. be careful as the piston will come out pretty quick so stick a rag or a block of wood in between the piston and the caliper so that it doesn't do any damage. if you don't have compressed air, you can use a bike pump with the cone nozzel.
5. after you get the piston out, pull out the inner seal careful not to scratch the wall of the caliper bore.
6. clean out all the nasty stuff with brake clean and a toothbrush (nothing metal, so you don't scratch the walls).
7. so now it's time to put it all back together. soak your inner seals in clean brake fluid.
8. fit the new inner seal in it's slot and then stretch the boot over the piston as here.
9. spread some brake fluid on the piston and bore walls and carefully push the piston back in...you should be able to do it with just your hands...if you get stuck, take it out and try again...don't get frustrated if it takes you a couple of tries.
10. put the retaining ring back on and you're all set.
10. the fronts are a little harder than the rears...pull the boot over the piston like this
11. tuck the boot into the slot in the caliper like this...it's hard...take your time and it helps to lube it all up with brake fluid.
12. push the piston in until the front of the boot slides into it's own slot.
1. start with a clean work surface
2. clean your bench and lay out your rebuild kit(s)
3. on the rear calipers, remove the retaining ring
3. pull the ring and boot off
4. if you have compressed air, shoot a little into the brake line hole. be careful as the piston will come out pretty quick so stick a rag or a block of wood in between the piston and the caliper so that it doesn't do any damage. if you don't have compressed air, you can use a bike pump with the cone nozzel.
5. after you get the piston out, pull out the inner seal careful not to scratch the wall of the caliper bore.
6. clean out all the nasty stuff with brake clean and a toothbrush (nothing metal, so you don't scratch the walls).
7. so now it's time to put it all back together. soak your inner seals in clean brake fluid.
8. fit the new inner seal in it's slot and then stretch the boot over the piston as here.
9. spread some brake fluid on the piston and bore walls and carefully push the piston back in...you should be able to do it with just your hands...if you get stuck, take it out and try again...don't get frustrated if it takes you a couple of tries.
10. put the retaining ring back on and you're all set.
10. the fronts are a little harder than the rears...pull the boot over the piston like this
11. tuck the boot into the slot in the caliper like this...it's hard...take your time and it helps to lube it all up with brake fluid.
12. push the piston in until the front of the boot slides into it's own slot.
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