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Removable towbar knocking!
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Wonky
 


Member Since: 28 Nov 2006
Location: Brill, Aylesbury
Posts: 354

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3
Removable towbar knocking!

Hi all, Ive have my vehicle for about 7 months now and use it a lot for towing my Tin Tent. I use the removable towbar and have noticed that it has become increasingly noisier. When I first fit the bar, it 'clicks' home beautifully and is lovely and tight. It seems to loosen slightly during the trip though resulting in a slight knocking whilst travelling.

Does anyone have any suggestions as to why, or what to do about it, or is this normal and I have to live with it?

ATB

Martin W
 07MY TDV6 HSE Stornoway Grey + Alpaca
No ugly kid glass!
Side steps (one with dent!)
BIG GRIN (although turned down at the edges)
Extremely empty wallet 
 
Post #1752847th Jul 2007 9:57 am
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Bodsy
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Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Java BlackDiscovery 3

Sounds a bit suspect, you wouldn't want to have play when towing yoru tintent.
Could be the spring that engages the locking mechanism is weakening?

If you got it new with the car, then Take it in to your dealers, parts are included under the 3 year warranty if supplied & fitted within one month of buying the car.
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Post #1752857th Jul 2007 10:00 am
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Ocsid
 


Member Since: 29 Nov 2005
Location: Hampshire
Posts: 255

England 2016 Discovery 4 3.0 SDV6 Landmark LE Auto Indus SilverDiscovery 4

Wonky,
I have very much the same as you describe but have not been aware of any knocking whilst travelling. Just that I noticed like you that it's not so tight in the tapered receiver as when initially engaged. I moved the towbar from my original D3 to the new one and have covered of the order of 7000 miles of towing with it. The contact faces show some burnishing but I would expect this. I took to greasing the contact faces with white cycle grease a long while ago basically to avoid any rusting of the receiver's flanks when the towbar is not in; maybe this deadens any audiable kloncking?
I had not been unduly concerned as the whole assembly is well secured by the cross pin and given the direction of the forces taken by the tapered socket some play is inevitable. It only seems tight initially because the machined taper on the underside of the cross pin forces the towbar's taper up into the receiver. However the spring strength pushing the pin home cannot generate similar vertical forces to that created by the towing load, though I have no doubt that they are more than adequate to keep the cross pin engaged. Its just that some slack seems to me to be inevitable.
I feel its a feature of the design rather that a cause for concern, however if you take it up with your dealer I would like to know the outcome please.

Got told by a french fellow caravanner two weeks ago that detachable tow bars are illegal in France. Just wonder how they cope with Disco3 if thats true; the LR fixed one only benefits from two drag-links, its vertical retention appears to be just the same as our removable ones. From then on did notice all french tow bars I saw were fixed.
  
Post #1753097th Jul 2007 3:35 pm
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Wonky
 


Member Since: 28 Nov 2006
Location: Brill, Aylesbury
Posts: 354

United Kingdom 2007 Discovery 3 TDV6 HSE Auto Stornoway GreyDiscovery 3

Thanks Ocsid.
I hope that you are right, I don't feel there is a problem but I thought I'd ask of anyones experience. I don'r know that the dealer will be able to have any answers as I have little regard for them - much better and honest answers on here! I will ask though Wink
Thanks once again

Martin W
 07MY TDV6 HSE Stornoway Grey + Alpaca
No ugly kid glass!
Side steps (one with dent!)
BIG GRIN (although turned down at the edges)
Extremely empty wallet 
 
Post #1755648th Jul 2007 9:20 pm
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Rob Bruce
 


Member Since: 18 Jun 2006
Location: Canberra
Posts: 687

Australia 2005 Discovery 3 TDV6 SE Auto Maya GoldDiscovery 3

Most of us down in OZ are looking at every alternitive to that useless tow bar, some tow bar manufactures
are working on alternitives,,some have mobified the tow bar, and some like me have manufactured a complete new tow bar.
the problem for all is you can not get spair wheel out unless tow bar is first removed.
Once it is full of mud and dust it is nearly imposible to remove,
No good off road as it is far too low,

I can not emagine what LR design team were on when they came up with this horable thing. Mayby they were
at the pub all Censored . Shocked

Rob
  
Post #1756909th Jul 2007 9:22 am
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

My Spare wheel (full size) come out fine with the towbar in place Shocked

Are yours different to the UK ???
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #1757209th Jul 2007 10:29 am
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Rob Bruce
 


Member Since: 18 Jun 2006
Location: Canberra
Posts: 687

Australia 2005 Discovery 3 TDV6 SE Auto Maya GoldDiscovery 3

Don't know :roll

Rob
  
Post #1757549th Jul 2007 12:05 pm
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catweasel
 


Member Since: 05 May 2006
Location: Bundaleer
Posts: 4805


DiscoDunc wrote:
Are yours different to the UK ???
I take it you have the swan neck type. you also have the other option which is all we get.
http://www.disco3.co.uk/forum/post175751.h...c81#175751
  
Post #1757869th Jul 2007 1:08 pm
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DiscoDunc
 


Member Since: 08 May 2006
Location: Bristol
Posts: 16390

England 2010 Discovery 4 3.0 SDV6 HSE Auto Aintree GreenDiscovery 4

That explains it Thumbs Up
 Duncan
-----------------------------------------------------
If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide 
 
Post #1758799th Jul 2007 5:43 pm
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