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Technical (156)
 Alfa Romeo forum : Technical (156)
Subject Topic: Rear brake disc pitted Post ReplyPost New Topic
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CroBaron
Junior Alfisti
Junior Alfisti


Joined: 15 September 2016
Location: United Kingdom
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Posts: 21
Posted: 14 July 2017 at 14:38 | IP Logged Quote CroBaron

I had rear brake pad seize on one side but now I got it working. Disc was badly pitted so I bought new TRW pads and tried to grind disc down but still not gripping it enough. Mot is due next week to :(

The new TRW pads dont seem that grippy to be honest, I had magnet marrelli last time and they were great.
What shall I do now?
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drayco
Junior Alfisti
Junior Alfisti


Joined: 03 August 2011
Location: United Kingdom
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Posts: 100
Posted: 14 July 2017 at 15:07 | IP Logged Quote drayco

Are you sure your calipers are not seized. Did they retract easily to fit the new pads? Did they close up ok when you pressed the pedal? Do they slide ok on the pins?
Also, the rears include the handbrake mechanism which rotates the piston and winds it out, so if all the other points are ok, try pulling the handbrake a few times to re-adjust.
How did you grind the discs down? Brake disks must be above a minimum thickness and should be concentric and flat. It's usually far easier to just replace the discs if they are badly pitted than attempt to resurface them.

Edited by drayco on 14 July 2017 at 15:07


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CroBaron
Junior Alfisti
Junior Alfisti


Joined: 15 September 2016
Location: United Kingdom
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Posts: 21
Posted: 15 July 2017 at 09:12 | IP Logged Quote CroBaron

Yes sliders are good caliper not seized either,
Yes i need lathe really, yes they 10.5 mm so got 0.5mm left
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CroBaron
Junior Alfisti
Junior Alfisti


Joined: 15 September 2016
Location: United Kingdom
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Posts: 21
Posted: 24 July 2017 at 21:43 | IP Logged Quote CroBaron

I put new disc on now.
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