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Likeomg

Member Since: 29 Jun 2012
Location: Lake District / Newcastle
Posts: 2640

2010 Defender 90 Puma 2.4 HT Stornoway Grey

Uneven pad wear - AP brakes

Been doing some routine maintenance on the truck, new the pads were low

Anyway - completely free moving pistons but one pad with 9-10mm of material and other 2-3mm,

Any theories? could it just be the calliper isn't very well aligned on the disc? something else? my initial thought - seized calliper but it's both rears and both sides are free moving.

22nd Dec 2020 6:29pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3414

2012 Defender 90 Puma 2.2 CSW Santorini Black

Did you check wheel bearing? maybe allowing the disc to come in contact with one pad more than the other?

This is very common on other cars that have pistons on one side of the caliper only, but happens because the caliper is not free moving in its guidings. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

22nd Dec 2020 6:33pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8032

2011 Defender 110 Puma 2.4 USW Stornoway Grey

lower on the side the fluid enters? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

22nd Dec 2020 6:36pm

Likeomg

Member Since: 29 Jun 2012
Location: Lake District / Newcastle
Posts: 2640

Wheel bearings are good, just did a seal too.

yeah jst, it's the side the fluid enters from

They are uprated AP racing brakes too, 4 pots on the rear

22nd Dec 2020 6:57pm

Retroanaconda

Member Since: 04 Jan 2012
Location: Scotland
Posts: 2647

This always happens with rear brakes in my experience, particularly when people have removed the splash guards.

22nd Dec 2020 7:23pm

90 Dreamer

Member Since: 13 Jul 2019
Location: Oop North
Posts: 2154

2016 Defender 90 Puma 2.2 HT Corris Grey

Is the caliper centred correctly on the disc??

22nd Dec 2020 7:26pm

Mo Murphy

Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2229

1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey

As James has said, common on rear calipers with no shields.
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey

22nd Dec 2020 7:33pm

Mo Murphy

Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2229

As James has said, common on rear calipers with no shields.
Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey

22nd Dec 2020 7:33pm

Likeomg

Member Since: 29 Jun 2012
Location: Lake District / Newcastle
Posts: 2640

Never knew about the rear splash guards, is there a theory behind it?

I didn’t fit the callipers but there isn’t any adjustment I don’t think, just adapter plates and that’s it...

22nd Dec 2020 7:36pm

jst

Member Since: 14 Jan 2008
Location: Taunton
Posts: 8032

Whether its in centre or not is irrelevant.

Shields make a difference, side with fluid input always seem to wear quicker. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop

22nd Dec 2020 9:07pm

Likeomg

Member Since: 29 Jun 2012
Location: Lake District / Newcastle
Posts: 2640

Just seems such a large difference, will keep an eye on it in future.

22nd Dec 2020 9:12pm

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