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NickMc



Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1628

Northern Ireland 2006 Defender 90 Td5 HT Bonatti Grey
Check your Hoses and callipers- always change them in pairs.
Post #781511 14th Jul 2019 10:06pm
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2645

South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
initial feedback from the workshop is that there's nothing wrong with the calipers nor the braking system.

As someone else said, it could be something else in the suspension which is causing this, so they're checking other things tomorrow. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #781583 15th Jul 2019 3:03pm
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toetankh



Member Since: 05 Aug 2015
Location: Papendrecht
Posts: 22

Netherlands 2007 Defender 110 Puma 2.4 SW Stornoway Grey
I experienced something similar with my Disco 1. Turned out to be the track rod. It was very slightly bent. No issues when driving, but when braking it acted a bit like a spring. Braking harder made things a bit scary....
Post #781618 15th Jul 2019 8:00pm
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2645

South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Just got the landy back: they fitted Terrafirma Medium coils in front to match the rear, and wheel alignment was done (it was way out).

They checked the braking system on rollers - all wheels are getting the same amount of braking +-5%. I'm told this is not enough to notice, and the spec goes +-30%.

It drives better, but there's still a hint of pulling under hard braking - I doubt anyone else will notice it though.

I think it's time to find another indie... --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #782877 24th Jul 2019 12:10pm
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spudfan



Member Since: 10 Sep 2007
Location: Co Donegal
Posts: 4708

Ireland 
Any reduction in brake fluid? 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali
2008 110 2.4 tdci csw-Zulu
2011 110 2.4 tdci csw-Masai
Post #782975 24th Jul 2019 8:53pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8053

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
If it's with tolerance on the rollers, as stated, then look to radius or trailing arm bushes. Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #782984 24th Jul 2019 9:32pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20447

United Kingdom 
Remember weight shifts with intertia dependant on speed.
Under braking the weight will shift to the front axle and or extra force applied to steering components also.
If any component is unequal from left to right then that will cause a pull to one way or the other.
Have you had a look at the damper Bushes and springs?
Beyond that, take a look at steering components ball joints etc.
This is in addition to what JST mentioned previously.

I'd check the cheaper easier things first, as most of the time this is the issue.

Are the tyre pressures equal? No Guts, No Glory.
🇬🇧🏴󠁧󠁢󠁥󠁮󠁧󠁿🏴󠁧󠁢󠁷󠁬󠁳󠁿🏴󠁧󠁢󠁳󠁣󠁴󠁿🇮🇪🇺🇸⛽️🛢️⚙️🧰💪
Post #782991 24th Jul 2019 10:17pm
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2645

South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Nope, no leaks anywhere, and the brake fluid level hasn't changed.

Yes, tyre pressures are equal.

Going to see a new indie today, we're going to drive together and then he'll put it on the lift to see if he can spot anything outright. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #783011 25th Jul 2019 6:53am
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toetankh



Member Since: 05 Aug 2015
Location: Papendrecht
Posts: 22

Netherlands 2007 Defender 110 Puma 2.4 SW Stornoway Grey
As custom90steve says, but also do check track rod and steering rod for 'straightness' (is this how you say that?). If not completely straight, it can cause weird steering behaviour under (hard) braking.
And it is quite possible to get the tracking fine without one of the rods being straight, so might not be as obvious as it looks.

Good luck!
Post #783018 25th Jul 2019 7:47am
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2645

South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Ok, went to see a new indie today whom a lot of our club members have recommended.

Car was on the lift, and we did a full inspection - a number of things he wasn't happy with, including the rear propshaft not being bolted on tightly enough, some bushes not the correct spec, etc.

He also bled the brakes and we went for a drive - problem sorted!

He's keeping the car for a few days to systematically work through the ongoing drivetrain vibration issue. --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #783127 25th Jul 2019 7:35pm
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2645

South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Issue was resolved by Auto Excellence: they found the front left bearing to be a bit loose and added a shim to tighten things up - it now drives very well and brakes in a straight line! --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ
Post #797109 7th Oct 2019 1:53pm
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