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MalteseRover



Member Since: 02 Jul 2013
Location: Gozo
Posts: 131
Malta 
what dictates Brake caliper body renewal? + other question
Hello

I have noticed that the lining on the front brake pads is reaching 4 / 5 mm - time to replace pads I think.

The pistons do not look rusty but there is some surface rust on them so I am interested in ordering a stainless steel rebuild kit because I am afraid that when I push the pistons back they might damage the seals.

The body of the calipers is quite rusty (lightly flakey) What determines whether I should buy new ones? (apart from rust in the seal area? (I know that splitting them is not advised) I have been reading quite a lot about the topic even here.

Can I sandblast them with the pistons still in without causing damage? I will try do everything myself

Any trusted supplier or brand of S/S piston kits and seals?

Joseph
Post #857194 21st Sep 2020 12:12pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7705
2011 Defender 110 Puma 2.4 USW Stornoway Grey
i have used Zeus stainless pistons to good affect.

check price of new calipers as they may be cheaper than pistons + your time.

order extra seal kits as outer dust seal is easy to damage. soak them in brake fluid prior to fitting.

i just wire brush caliper, if its old 1980s1990s it may need replacing but if its 20years old or so i would of thought it would be fine ***subject to what its been submerged in**** unlikley it needs replacing.

4-5mm is quite a bit left, just over half way through? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #857197 21st Sep 2020 12:43pm
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MalteseRover



Member Since: 02 Jul 2013
Location: Gozo
Posts: 131
Malta 
Sorry not sure if they were uploaded in the initial post.

Here are the pictures. They should be 2003 Defender (AP) calipers. I do not go wading or do mud runs just regular road usage and occasional farm work in fields during hay season. No road salt either but salty atmosphere since the island is just 13miles x 7miles


Click image to enlarge


Click image to enlarge

joe
Post #857202 21st Sep 2020 12:58pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7705
2011 Defender 110 Puma 2.4 USW Stornoway Grey
i would wire brush them and leave them Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #857228 21st Sep 2020 3:55pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 16913
United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
They look fine to me, I have seen many that are far, far worse than that on the outside.
Post #857261 21st Sep 2020 7:38pm
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JoolsB



Member Since: 28 Mar 2020
Location: The North
Posts: 162
United Kingdom 2011 Defender 90 Puma 2.4 HT Orkney Grey
Im about to change my discs and pads and ended up buying a disc/pad/calliper set from Maltings for 200; at that price it seemed daft not to do it.
Post #857263 21st Sep 2020 7:52pm
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