Member Since: 22 May 2019
Location: Norfolk
Posts: 302
Rear Brake Disc Marked
Recently changed my discs and pads all round, noticed I have a mark on one of the rear discs, just stripped it down to see what was causing it but can’t see anything obvious, wondering if it’s a fault in the pad? Any of the eagle eyed out there see anything?
13th Apr 2020 1:29 pm
rrhool
Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4405
I had this on new discs. I think since asbestos was banned from brake pads, they put all sorts of other stuff in them. It's possibly a hard inclusion in the pads. The mark in my discs went away after a few thousand miles.Richard
D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.
Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone
13th Apr 2020 1:50 pm
M3bobby
Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857
Is it coincidental that the score is at the end of the grooves? Could the pad debris be getting pushed to the end of the groove and causing the score?012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
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Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
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2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
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13th Apr 2020 10:30 pm
Andyyav
Member Since: 22 May 2019
Location: Norfolk
Posts: 302
Possibly, but it’s only that one you’d think it would be the same all round? I’ve been in contact with the suppliers for their input, I’ll see what they say
14th Apr 2020 2:28 pm
Andyyav
Member Since: 22 May 2019
Location: Norfolk
Posts: 302
Reply from the supplier -
It looks like there is a lot of debris in the slot on your pads, I would clean the slot out and re-assemble and check again after a few hundred miles. It looks like some dirt has been trapped between the pad and the disk.
I can’t see how dirt would get between the pad and disc and it was clean when I took it apart, think I’ll fit the old pads and see if it makes any difference
14th Apr 2020 4:26 pm
waterbuoy
Member Since: 26 Oct 2013
Location: Argyll
Posts: 2865
I often get grit and stones stuck between pad and disc - makes a hell of a racket. Sometimes it can only be removed by reversing, so they may be speaking sense.Currently 2009 Disco 3 SE, 2013 MY D4 HSE and 2016 D4 SE
Previously:
TD5 Defender 110 CSW (230k miles)
300TDi Disco 1 (289k)
4 RR Classics (300-350k each, 2 manual, 2 auto)
110 V8 CSW (220k)
S3 109 hi cap pickup (ex RN)
S2A 88 Safari SW with lpg conversion (bloody lethal)
14th Apr 2020 5:23 pm
M3bobby
Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857
I would also check to see if that side has a sticky calliper. You may not even notice in the cabin. Take it for a spin and when you get back, throw some water on each disc and see if the scored one gives off more steam/hissing.012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)
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