Tools : nothing special (spanner, screwdriver) but a compressor will be needed;
Level : Average
Cost : 15€ the brake caliper renovation kit |
- Start by removing the road wheel, always supporting the car on an axle stand.
- Put a container ready to collect the brake fluid that will leak out.
- Undo the connecting bolts (be carefull not to lose the two copper washers, one on either side of the end of the brake flexi).
- Take off the caliper.
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- The caliper once removed.
- Now you can de-grease it.
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- Block the first two pistons with a hammer.
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- Put the nozzle of the compressor in the flexi-hose hole.
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- Apply compressed air gently so as to slowly push out the piston (especially if you want to re-use the dust-cover).
- Be careful not to leave your fingers between the caliper and the piston!
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- Here the piston is completely out.
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- Now clean the piston with de-greaser and a clean cloth.
- If there are any rust spots remove them with grade 800 wet and dry paper using brake fluid.
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- You can see the inside of the caliper - and the colour of the brake fluid...
- Take out the old seal with a small screwdriver without scratching the cylinder bore.
- Carefully de-grease the inside.
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- Put the new seal in, after having soaked it well in brake fluid.
- Also cover the cylinder bore in brake fluid.
- Put the piston back by pushing it firmly but don't ever force it
- If the piston is slightly skewed, don't force it - take it out and start again.
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- Replace the dust-cover.
- Do the two other pistons the same way.
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- Replace the brake shoes, the caliper, then the flexi connectors.
- All that remains is to bleed the brakes (which is usually a 2-person job).
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Thanks to Julien77 for this magnificent report, and many thanks to hoverfrog for this translation.
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