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Knocking Rear Brakes


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4 replies to this topic

#1
Gavin Waddell

Gavin Waddell
  • Drivers
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Joined: 14 Jan 2004
  • Location:Switzerland
I have disc brakes on the back of my 1.6gti, and when I apply light pressure to the pedal there is a constant knockin, if apply full pressure it goes away.
I had a look at the calipers and the osr seems to wiggle a bit On the the sliders pins,where as the rns doesn't budge. I checked the slider bolts and there all tight. Don't really understand how the sliders pins could develop play.

Thanks Gavin

#2
welshpug

welshpug
  • Pitcrew+
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Joined: 18 Aug 2006
  • Name:Mei
  • Location:Bridgend
ive had bolts torque up but not clamp the pins properly due to crap in the threads, I'd send a tap through and see what happens.

#3
Daviewonder

Daviewonder
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Joined: 20 Jul 2009
  • Name:Dave
  • Location:Bognor Regis, Sussex
Garage View Garage

The alloy wears on the caliper where the sliders go through, resulting in play. I've had it happen on a coupe of sets of front Bendix calipers. 



#4
Gavin Waddell

Gavin Waddell
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Joined: 14 Jan 2004
  • Location:Switzerland
Cheers for the advice guys will take apart and clean them all up and reassemble, the thread is a m12x 1.5?

Gavin

#5
Gavin Waddell

Gavin Waddell
  • Drivers
  • 488 posts
Joined: 14 Jan 2004
  • Location:Switzerland
So I took the rear caliper off cleaned the all the threads regreasd and loctite, bolted it all back up the caliper still has a bit of play on the slider. Took it for a test run and no more noise ?
Will keep an eye on it.

Thanks for the advice Gavin