2007 Peugeot 207 rear caliper piston

Tiny
DAVIE01
  • MEMBER
  • 2007 PEUGEOT 207
  • 1.6L
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 58,000 MILES
Hi there, I started to change the rear brake pads on my peugeot but the piston wont wind back into the caliper. I am using a wind back tool but the piston just rotates. What can I do?
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Friday, April 17th, 2015 AT 11:02 AM

3 Replies

Tiny
ED-WEEZY21
  • EXPERT
We can try a few things before actually going ahead and replacing the caliper. First, I'm not exactly sure which tool you are using. If you are using a regular hand turn one, you may not be getting sufficient force to push while turning at the same time. There are some kits out there that have a screw type setup which is usually the better option. The adapter sits in the grooves of the piston, then there's a plate that sits up inside of the caliper while the screw end sticks out of the caliper. This screw end should have an end to be able to use a wrench or socket to spin it inwards. Before any of this, I like to take the cap off of the master cylinder. I do this because the cap actually holds back the pressure and actually fights against you. If this doesn't work, try cracking the bleeder screw to relieve the pressure and try to compress the piston at the same time. Be sure to have enough fluid in the master cylinder to prevent air from being sucked in. If none of these work, then you may have a defect with the brake caliper and I would go ahead and replace it at this time.
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Friday, April 17th, 2015 AT 3:27 PM
Tiny
DAVIE01
  • MEMBER
Thanks for the reply. I had already released the reservoir cap and the wind back tool is a Laser product that applies pressure to one part of the caliper while winding and pushing on the piston at the same time. I haven't tried releasing the oil pressure behind the nipple. I'll give that a go. Regards. Dave.
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Saturday, April 18th, 2015 AT 4:59 AM
Tiny
ED-WEEZY21
  • EXPERT
Ok so you knew exactly which tool I was talking about. That unfortunate that it didn't work. Let me know what you find after relieving the pressure by cracking loose the brake bleeder.
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Saturday, April 18th, 2015 AT 7:26 AM

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