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jonnytatt



Member Since: 04 Jun 2015
Location: Oldham
Posts: 37

United Kingdom 1988 Defender 90 300 Tdi SW Nato Green
swivel preload query (yawn I know)
How do, first up I'm aware there's lots on this on the net but not really what I'm after..

I just want a clear answer to a wobble I get now and again which does not grow into a death wobble more of a quick shake for a second .

Me and my father jacked up the axle we can't feel any 12-6 play on swivel seals. Like none at all, not even on the ground pushing vehicle crossways back and forth.

What I really want to know is can they still be worn but only show up with the weight of the vehicle when I'm driving.

I must clarify before confusion all ball joints , rad arm bushes , panhard bushes , rtc dampner , wheel bearings , shocks and springs have been changed. Even both column UJs , oh and the column itself from uj to wheel.

Tyres are 285/75/16's capable of 80psi but I think they are at 35psi like most people run
Post #461034 6th Oct 2015 6:29pm
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JWL



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

England 2002 Defender 110 Td5 SW Coniston Green
That's a difficult one to find, with no movement when you've checked the swivel bearings in the tried and tested way then I would be happy with that. I would be looking again at all the bushes, give them a good waggle about with a bar to see if there's any movement. In the back of my mind I would be looking a bit harder at the RTC damper, I haven't allways been a fan as my thinking is that there must be a point in the centre where it has to pass a point to push against the pressure, i.e. a bit like a neutral in a gearbox. There has to be a point where there's no pressure so if you're at the point where it's deciding which way to push then there must be a "dead spot".
Post #461042 6th Oct 2015 6:45pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8033

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
have you tried the steering box bolts that attach it to the chassis plus the bolt that attaches the drop arm support 'arm' to the chassis? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #461048 6th Oct 2015 7:05pm
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jonnytatt



Member Since: 04 Jun 2015
Location: Oldham
Posts: 37

United Kingdom 1988 Defender 90 300 Tdi SW Nato Green
Hi jst yes I've wanted the steering box bolts as much as I dare without threading. As for the other I'm unsure at the moment which unless I look.

I'd be dammed if it's a bush JWL they are literally weeks old. Panhard took a beating getting in but I can't see that being a problem.

How tights too tight on rad arm bolts and Panhard. I worry as I've bent bolts and threaded them in the past by being strong.

I could perhaps remove the spring from the rtc thus making it just a damper. My question would be why sell it though.
Post #461085 6th Oct 2015 7:50pm
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jonnytatt



Member Since: 04 Jun 2015
Location: Oldham
Posts: 37

United Kingdom 1988 Defender 90 300 Tdi SW Nato Green
Don't get me wrong it's not dangerous but there's a wobble for a second now and again.

I've never drove another to compare but I can feel everything through the steering wheel. Every knock and bump. That could be just characteristics
Post #461087 6th Oct 2015 7:51pm
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JWL



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

England 2002 Defender 110 Td5 SW Coniston Green
Your point on the RTC, "Why sell it though?", in my mind they're a gimmick as if you have the steering set up properly in the first place then the steering will self centre but people buy them so there is a market for them.
Post #461090 6th Oct 2015 7:57pm
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17390

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
It is possible that there is insufficient friction provided by the swivels to provide damping but without wear being evident when the swivels are rocked by hand. They can be loose but without play.
Post #461141 6th Oct 2015 9:49pm
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jonnytatt



Member Since: 04 Jun 2015
Location: Oldham
Posts: 37

United Kingdom 1988 Defender 90 300 Tdi SW Nato Green
Thanks blackwolf that's what I wanted to hear.

Yes JWL I understand and agree if set up they should centre correctly
Post #461183 7th Oct 2015 7:01am
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nosnibod



Member Since: 15 Aug 2007
Location: West Midlands
Posts: 370

United Kingdom 1998 Defender 110 300 Tdi SW Bronze Green
+1 blackwolf

I had exactly same problem for quite a while despite replacing bushes and having the wheels rebalanced. Turned out to be the swivel preload wasn't right. No play at all - just not enough friction in the swivels.

Swivels sorted and the wobble was completely eliminated. Dave
Green Goddess - 1998 Defender 110 300tdi
Post #461191 7th Oct 2015 7:26am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17390

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
I need to sort mine out sometime soon, yet another job I haven't had time to do. Still after 175,000 miles I suppose some loss of preload is understandable!
Post #461195 7th Oct 2015 7:43am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 8033

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
how many miles on this vehicle in question? Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #461243 7th Oct 2015 10:12am
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jonnytatt



Member Since: 04 Jun 2015
Location: Oldham
Posts: 37

United Kingdom 1988 Defender 90 300 Tdi SW Nato Green
130k miles. I had a look and have no shims in one side (passenger) so I guess its due new bearings and shims. Lucky me I have another axle I think it would be quicker to just swap the lot
Post #461486 8th Oct 2015 8:04am
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554


Click image to enlarge


setup swivel preload
Post #461495 8th Oct 2015 8:29am
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Scotm



Member Since: 28 Feb 2014
Location: Aberdeenshire
Posts: 666

Scotland 2012 Defender 110 Puma 2.2 SW Orkney Grey
Tough one this - I had a similar problem on my previous 300tdi a few years ago - It took a new steering damper, a rebuild of the swivels and two further preload check/adjustments to virtually stop it. The final improvement was changing the panhard bushes to superpro to eliminate it.
Post #461510 8th Oct 2015 9:03am
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