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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 805

United Kingdom 2004 Defender 90 Td5 SW Santorini Black
Brake Bias Valve Replacement
I need to replace my 90’s brake bias valve, because it is leaking.

It’s a non-ABS Td5 90.

Does anyone have any tips, tricks, or insights before I tackle the job? Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders
Post #993471 21st May 2023 10:45am
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4388

United Kingdom 
It is an an awkward place for sure. It is much easier if done on a vehicle ramp but is possible DIY on the floor or jack stands.

The first and foremost thing to do is get some penetrating oil on to the brake pipe nuts. Unless you are going to replace the brake pipes that is...
Post #993489 21st May 2023 1:38pm
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NickMc



Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1568

Northern Ireland 2006 Defender 90 Td5 HT Bonatti Grey
Get a beautiful assistant and take the bonnet off, soak the brake nuts in penetrating oil, empty the reservoir if you have the means, loosen the brake pipes (mark or photo which one is which), get covered in brake fluid, curse the rusty screws holding the door finishers on, remove/pull forward the inside footwell mat to get at the M8 bolt head securing it, get the hoover out because you’re disgusted at how much muck has accumulated under it rusting the bottoms of your footwells, bolt new one on loose (gives you wiggle room to fit the pipes) , screw in brake pipes, tighten M8 bolt to hold it, tighten brake pipes and bleed the system. Don’t push the pedal the whole way to the bottom the first time few times bleeding as if you’ve any dirt in the bottom of the reservoir it’ll get sucked behind, I always half pump half pumps first few. End the job curse the td5 and think - ahh I remember when us skinny athletes used to be able to climb into a 200 Tdi engine bay and do it sitting down Rolling with laughter
Post #993507 21st May 2023 3:44pm
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 805

United Kingdom 2004 Defender 90 Td5 SW Santorini Black
It seems like a basic task, but accessibility makes it fiddly.

Fortunately I had a full stainless brake line set fitted two years ago, so the lines should come out of the valve easily (fingers crossed). Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders
Post #993613 22nd May 2023 1:41pm
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geobloke



Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4388

United Kingdom 
Well in that case it is just a matter of getting your hand and a spanner in to that space Thumbs Up
Post #993632 22nd May 2023 3:33pm
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 805

United Kingdom 2004 Defender 90 Td5 SW Santorini Black
What a hateful job this was! Rolling with laughter Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders
Post #995032 4th Jun 2023 10:15am
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