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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6295

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
Angles.....
So just a hypothetical question of course.... Whistle

To my mind the rear A controls predominantly lateral movement of the rear axle but also controls rotation of axle and relies on the ball joint to operate as intended?

Assuming this is the case and assuming my ball joint is shagged and sticking as per my track rod end I assume this would skupper the ANGLES that the rear prop uj were supposed to operate with?

Could this is then potentially create a clattering sound and in extreme circumstances a braking effect or is this just not possible?

The other day while driving miss daisy fashion I parked up half on pavement and half on road using drop kerbs and although this was a typical height kerb there was a good old clonk from underneath. 500 yrds later driving through an underpass and the clattering was as bad as it ever gets......just coincidence?
Post #454377 12th Sep 2015 9:23am
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mk1collector



Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

England 2004 Defender 110 Td5 CSW Bonatti Grey
And so it starts again Ray
My build thread
http://www.defender2.net/forum/topic17615.html
Post #454384 12th Sep 2015 9:45am
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6295

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
Could it?
Post #454390 12th Sep 2015 10:04am
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davew



Member Since: 02 Jan 2012
Location: North Yorkshire
Posts: 888

England 1990 Defender 90 V8 Petrol PU Auto Rioja Red
The A frame handles movement in all directions, not just lateral. The geometry of the rear trailing arms and the A frame combined keeps the diff level as the axle moves up and down, ensuring that the diff flange and transfer box output flange are parallel to each other through most of the axle's travel. Under acceleration/deceleration the A frame prevents the axle twisting. That's why the A frame attaches at the top of the diff and the trailing arms attach at the bottom of the axle.

It's unlikely that even a badly worn A frame ball joint will allow the axle to move so much it will effect the prop. More likely you have a bad exhaust mount and parking it on a kerb just shifted it a bit.

The ball joint, if worn, will make a sound similar to other suspension bushes, more of a single clonk as you set off forwards after reversing. http://www.yorkshireoffroadclub.net/
Post #454395 12th Sep 2015 10:25am
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6295

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
Davew thanks very informative.
I need to have a look again underneath but my query is more based on 'if the ball joint was stiff an not allowing things to move as they should - could this prevent the flanges from lining up as they should and hence cause problems?
Post #454399 12th Sep 2015 10:35am
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JWL



Member Since: 26 Oct 2011
Location: Hereford
Posts: 3443

England 2002 Defender 110 Td5 SW Coniston Green
If you think there is a problem then change it, they're not mega money and it will give you peace of mind. Thumbs Up
Post #454407 12th Sep 2015 11:16am
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Happyoldgit



Member Since: 14 Sep 2007
Location: Norfolk
Posts: 3471

United Kingdom 2015 Defender 110 Puma 2.2 USW Corris Grey
Seriously, it was only a few days ago you were looking at steering wobbles and asking what the swivel pins did, now you're conjecturing about the A frame balljoint. You seriously need to get another hobby Wayne Rolling Eyes Steve.
Owned numerous Land Rover vehicles of all shapes and sizes over the decades.
Current Defender: A non tarts hand-bagged Puma 110 XS USW.

[Insert something impressive here such as extensive list of previous Land Rovers or examples of your prestigeous and expensive items, trinkets, houses, bikes, vehicles etc]

http://forums.lr4x4.com

I used to be Miserable ...but now I'm ecstatic.
Post #454422 12th Sep 2015 12:09pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6295

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
I'm getting it replaced as a matter of course but I'm interested to know what side effect if any you'd get from the ball joint being stuck in one position / or if it were very stiff?

Steve - re the swivel pins I presume You saw the video....the knocking noise clearly wasnt my imagination..........this time (it wasn't the swivel pins either......??)

Very Happy


Last edited by Caterham on 12th Sep 2015 2:51pm. Edited 1 time in total
Post #454436 12th Sep 2015 12:52pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
You've got more money than sense. My late father used to say "A fool and his money are soon parted!" In this case your money pit seems to be bottomless and the part about finding another hobby is true!

Thumbs Up Whistle

I feel another marathon thread coming on! Just get it swapped out and report once it's done please!

 If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #454440 12th Sep 2015 1:08pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6295

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
Ssshhhh. The wife might hear and starting quizzing me about this pit!

Gonna see if I can get one today and fit tomorrow but i'm a wee bit apprehensive about the fitting?
Post #454445 12th Sep 2015 1:46pm
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K9F



Member Since: 12 Nov 2009
Location: Bournemouth
Posts: 9610

United Kingdom 2008 Defender 90 Puma 2.4 XS CSW Stornoway Grey
"What could possibly go wrong?"

No need to answer or post about each nut and bolt progress. Whistle Laughing Thumbs Up If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!
Post #454508 12th Sep 2015 6:18pm
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Caterham



Member Since: 06 Nov 2008
Location: Birmingham
Posts: 6295

England 2011 Defender 110 Puma 2.4 XS CSW Stornoway Grey
I really don't know what you mean?
I successfully repair the a/c without any help or supervision Cool
Post #454510 12th Sep 2015 6:22pm
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davew



Member Since: 02 Jan 2012
Location: North Yorkshire
Posts: 888

England 1990 Defender 90 V8 Petrol PU Auto Rioja Red
If the A frame ball joint was seized you'd know because you would have no articulation at all, I can't imagine a situation where that would happen. When they wear you get extra movement in the joint which causes a clonk when you take up the slack in the transmission.

Replacing it is arguably one of the hardest jobs to do at home on a Defender, I've never done one at home, I always take it to a mate's garage and I've rebuilt more Land Rovers from scratch on my drive than I care to remember. You need a decent professional quality press to get the old joint out and the new one in unless you buy the complete assembly. http://www.yorkshireoffroadclub.net/
Post #454564 12th Sep 2015 10:18pm
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Rickydodah



Member Since: 14 Jul 2014
Location: East Sussex
Posts: 1091

Definitely buy the joint and fulcrum arm together, that way it's about a half an hour job. Trying to get the joint out of the fulcrum arm is a major and I mean Major PITA. Thumbs Up I started with nothing and still have most of it left!
Post #454567 12th Sep 2015 10:39pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20278

United Kingdom 
K9F wrote:
"What could possibly go wrong?"

No need to answer or post about each nut and bolt progress. Whistle Laughing Thumbs Up

Rolling with laughter
Post #454577 12th Sep 2015 11:58pm
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