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Sylvan



Member Since: 28 Nov 2016
Location: North
Posts: 62

Wales 
Defender front caliper torque
Hi
could someone guild me to where I coukd find torque setting for the front caliper on a defender 110 xs please?
it's the 4 bolts that hold the two pieces of caliper together.
much appreciated
Post #1037527 15th Jun 2024 11:56am
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Ianh



Member Since: 17 Sep 2018
Location: Essex
Posts: 1997

United Kingdom 
Torque settings for Puma https://www.lrworkshop.com/torque-specific...ender-2007

However canโ€™t see the ones you need Sad
Post #1037528 15th Jun 2024 12:27pm
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Sylvan



Member Since: 28 Nov 2016
Location: North
Posts: 62

Wales 
Thanks Ian,
yeah I'd been on that page myself and couldn't find them
appreciate your help mate ๐Ÿ‘
Post #1037529 15th Jun 2024 12:33pm
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Martin
Site Admin


Member Since: 02 Apr 2007
Location: Hook Norton
Posts: 6605

United Kingdom 2015 Defender 90 Puma 2.2 XS CSW Montalcino Red
I donโ€™t believe there is a factory published torque value as the caliper halves are not intended (by LR) to come apart.  1988 90 Td5 NAS soft top
2015 D90 XS SW
Post #1037532 15th Jun 2024 1:38pm
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Will@LRW



Member Since: 04 May 2019
Location: UK
Posts: 178

 1997 Defender 110 300 Tdi CSW Alpine White
Yes there are no official values. If you search the internet hard enough you may find a value between 80 and 90 nm but there is no guarantee that that would be correct.

I split and reassembled some rear calipers about 10 years ago to fit stainless pistons, but swapped to a different axle and caliper setup about 18 months after, so cant comment on the longevity.

I think if doing it again i'd find a way to pump air into the caliper to pop each piston in turn, rather than splitting. (Or buy a new OEM caliper) LR Workshop
Find a Defender's history and spec: https://defender.lrworkshop.com
Post #1037535 15th Jun 2024 2:15pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20339

United Kingdom 
Go by the generic fixing size torque setting, just back off a couple of NM from the max.
It has stated in the WSM if no specific torque is specified you can use generic torque figures for the fixing size.
I seem to remember LR did have a table for that somewhere in there. $W33T $0U7H3RN $UG4R
๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿด๓ ง๓ ข๓ ฅ๓ ฎ๓ ง๓ ฟ๐Ÿด๓ ง๓ ข๓ ท๓ ฌ๓ ณ๓ ฟ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ๐Ÿ‡ฎ๐Ÿ‡ช๐Ÿ‡บ๐Ÿ‡ธโ›ฝ๏ธ๐Ÿ›ข๏ธโš™๏ธ๐Ÿงฐ๐Ÿ’ช
Post #1037541 15th Jun 2024 3:35pm
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Sylvan



Member Since: 28 Nov 2016
Location: North
Posts: 62

Wales 
Thanks all for your messages, they make sense, unfortunately I had to strip it down to resemble with new stainless steel pistons, there's a rubber washer that joins the two split pieces with a spacer block where the rubber washer fits, inside the rubber washer is a piece of what looks like a pipe, and I think the re fitting of this is critical for the seal of the two parts back together. I've also seen advice about do not split it unless absolute necessary, I don't even think theres a place selling the rubber seals,.
Thanks again guys
Post #1037631 16th Jun 2024 7:33pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20339

United Kingdom 
I think it would be best and safest you replace them as new assemblies from the factory, as itโ€™s not worth taking any risks at all in any way.
Just my opinion. You also have peace of mind then also. $W33T $0U7H3RN $UG4R
๐Ÿ‡ฌ๐Ÿ‡ง๐Ÿด๓ ง๓ ข๓ ฅ๓ ฎ๓ ง๓ ฟ๐Ÿด๓ ง๓ ข๓ ท๓ ฌ๓ ณ๓ ฟ๐Ÿด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ๐Ÿ‡ฎ๐Ÿ‡ช๐Ÿ‡บ๐Ÿ‡ธโ›ฝ๏ธ๐Ÿ›ข๏ธโš™๏ธ๐Ÿงฐ๐Ÿ’ช
Post #1037633 16th Jun 2024 7:54pm
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Sylvan



Member Since: 28 Nov 2016
Location: North
Posts: 62

Wales 
Your absolutely correct ๐Ÿ‘
Post #1037634 16th Jun 2024 8:06pm
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MR_JAMES



Member Since: 10 Oct 2013
Location: ESSEX
Posts: 248

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Stornoway Grey
is it a square section washer? I recently rebuilt the ap calipers on my mini (real not german one) - I was able to get genuine ap part from minispares centre. Range rover classic had similar if not same 4 pot caliper, the seal for that is 17h8764 which is also available from minispares or if you put an L on the end the usual land rover suppliers. 1953 80"
1987 mini city e
2011 90"
Post #1037636 16th Jun 2024 8:32pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17367

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Sylvan wrote:
Thanks all for your messages, they make sense, unfortunately I had to strip it down to resemble with new stainless steel pistons, there's a rubber washer that joins the two split pieces with a spacer block where the rubber washer fits, inside the rubber washer is a piece of what looks like a pipe, and I think the re fitting of this is critical for the seal of the two parts back together. I've also seen advice about do not split it unless absolute necessary, I don't even think theres a place selling the rubber seals,.
Thanks again guys


These are called gallery seals and their unobtainability is the strongest argument for not splitting the calipers. Sometimes you're lucky and they are obtainable, but usually it is extraordinarily difficult to find the right ones. Do not be tempted to improvise, these are safety-critical parts.
Post #1037637 16th Jun 2024 8:34pm
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Mo Murphy



Member Since: 01 Jun 2008
Location: Letchworth Garden City, Herts
Posts: 2227

United Kingdom 1984 Defender 90 BMW M57 3.0 Diesel HT Auto Pennine Grey
Front Caliper gallery seals - 3851-739

Mo The Land Rover 90 - Many are called, few are chosen.

50 Shades of Pennine Grey
Post #1037650 17th Jun 2024 3:38am
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Sylvan



Member Since: 28 Nov 2016
Location: North
Posts: 62

Wales 
MR_JAMES wrote:
is it a square section washer? I recently rebuilt the ap calipers on my mini (real not german one) - I was able to get genuine ap part from minispares centre. Range rover classic had similar if not same 4 pot caliper, the seal for that is 17h8764 which is also available from minispares or if you put an L on the end the usual land rover suppliers.

Thanks Mr James
Post #1037655 17th Jun 2024 7:22am
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Sylvan



Member Since: 28 Nov 2016
Location: North
Posts: 62

Wales 
would anyone know the correct size of the bleed nipple please?
Post #1037656 17th Jun 2024 7:23am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8021

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
[quote="Will@LRW"
I think if doing it again i'd find a way to pump air into the caliper to pop each piston in turn, rather than splitting. (Or buy a new OEM caliper)[/quote]

Why not just take the pads out and use hydraulic pressure from pedal to push pistons out?

Failing that remove caliper from vehicle and use plumbers wrench, failing that for cut a groove in piston with angle grinder and use pry bar.

If its seized flush with caliper body, which I haven't seen before then there's another problem. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #1037712 17th Jun 2024 7:54pm
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