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sijui
Member Since: 03 Mar 2006
Location: Rosebank
Posts: 81
  
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G'day all
Brillaint forum
I am about to pick up a new disco 3 hse TD here in Cairns where the rainforest meets the reef. It will be used respectfully but as a proper 4WD in exploring parts of Northern Australia and I was wondering what additional, if any, corrosion protection applications people recommend for this new mutli-alloy 'integrated monocoque' body.
I have a tendency to leave well alone and may be put an electronic unit on?
I notice the warranty is only 6 years, most european cars are 10-12.
any way here's to at least 6 years of great fun in the best 4wd I know of
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 29th Mar 2006 7:41 am |
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Gareth
Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26775
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The most important area would be underneath. The chassis on mine is showing surface rust around the welded joints, and also on the rear crossmember. Its not serious, but looks bad, and I would imagine will get serious in 10 years time.
The factory paint on the chassis is about the same standard as a Defender, i.e not very thick!
The other area of risk is behind the plastic trims around the wheel arches, and allong the door bottoms. They get filled with silt which stays damp. The only solution is regualar removal and cleaning.
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| 29th Mar 2006 8:00 am |
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sijui
Member Since: 03 Mar 2006
Location: Rosebank
Posts: 81
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Thanks Gareth
so no easier softer path on this one
What do you think about the electronic devices that supposedly reduce the oxidisation process
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| 29th Mar 2006 10:44 am |
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Gareth
Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26775
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Never heard of them? maybe I've had a sheltered life !
All I can say is that I don't think a rusty chassis will be the final straw for most D3's when the time arrives for the boat to come in 
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| 29th Mar 2006 1:04 pm |
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TonyH
Member Since: 01 Mar 2006
Location: Market Drayton, Shropshire
Posts: 211
 
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Sijui
I have owned 3 disco's from new and have always applied underbody wax (colourless waxoil) within a few days of delivery. I apply two generous coats, sprayed into every nook & cranny. I reapply annually just prior to the winter period. It seems to do the job, no rust, but I do not go off-road, so it appears to stay on the underside.
Regarding cathodic protection, I understand this can cause a reaction between ferrous metal and alloy, where the two metals are in close contact. I wouldn't go there. *Disco3 7-seat Auto
March 2006
Zermatt silver
*Disco TD5 GS Manual
2001
Epson Green
108,000 miles without a single problem
*Disco TD200 Manual
1993
Bonatti Grey
55,000 trouble-free miles
*Various company cars, no comparison
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| 29th Mar 2006 5:44 pm |
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ksskaret
Member Since: 21 Jan 2006
Location: Rena
Posts: 45
 
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Does anyone know what part of the body is aluminium 
Simon Simon
Disco3 HSE TDV6 Auto Buckinghamblue MY2006
LR Defender 110 PU MY1998
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| 29th Mar 2006 7:27 pm |
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PCH
Member Since: 12 Jan 2005
Location: Anywhere but work
Posts: 812
 
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Bonnet and Tailgate doors
Chris 2011 Discovery 4 (MY12) SDV6 HSE with General Grabber AT's, Traxide Aux Battery system, custom rear drawers and Autosafe half height cargo barrier
Gone - 2005 Discovery 3 TDV6 HSE
ARB Bull Bar, Warn 9.5XP Winch, IPF D/Lights, Cooper STT's, LR Raised Air Intake, Traxide aux battery system, custom drawers and half height Autosafe cargo barrier, Mitchell Bros 4x4 tow hitch
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| 31st Mar 2006 11:17 am |
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Stingray
Member Since: 03 Apr 2005
Location: North Wales
Posts: 218
 
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The first thing I did to mine, when it was a day old, was to put it on a four post lift, and treat all the relevant accessible areas with Dintrol rust proofing fluid. The factory protection is really poor in my opinion, with large areas missed altogether. I managed to treat the inside of some of the box sections as well, including the sills, which I'm sure will easily fill with water when wading. This is a recipe for serious rust problems later in the car's life, and I think it is quite appalling that LR don't do a proper job in the factory, which could easily be cheap, very effective, and a good selling feature, as well as showing that they care about their product's longevity, and their customers satisfaction. £100 or £200 spent when new, could put ten years on the vehicle's life.
Sorry to go on, but any thoughts on the subject?
Ray
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| 31st Mar 2006 6:35 pm |
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sijui
Member Since: 03 Mar 2006
Location: Rosebank
Posts: 81
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It seems to me that this corrosion thing is a bit like death and taxes- it happens and whatever you do is really about what makes you feel like you are doing the right thing not whether it actually works
The hypocratic oath"first do no harm" springs to mind as someone sprays gallons of sticky stuff all over the sensors and other ABS gear under the car
Not being an elecrtonics engineer or metallurgist I can imagine the bonnet and tailgate becoming proxy sacrificial anodes - that would be embarrasing
Perhaps Land Rover have developed a shameless attitude that their vehicles don't rust which explains theit traditionally poor factory paint job
still ambivalent
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| 1st Apr 2006 4:35 am |
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LeighW
D3 Decade
Member Since: 31 Jan 2006
Location: Brisbane, AUS
Posts: 920
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Hi sijui - I had a Pajero that was NOT rustproofed by others and I drove it to many places in NQ incl through creek crossings. I tried to keep it clear of the salt but did take it to Fraser Island (and carefully drove the beach sections). Always I chose to wash the car underneath within a short time of any sand or saltwater visits.
I have used Lanotec (or you could try Inox/Lanox or Lanoguard) for spraying any areas where I suspected rust could develop (sold in a spray can but I also bought the 1l size and hand sprayed it). I sold that car in January this year with 230 000 kilometres and other than surface rust on parts of the chassis it was excellent.
I have no experience with cathodic protection (but is popular on the Gold Coast, I believe) so cannot comment but take your the point about sacrificial effect on the dissimilar metals.
I have sprayed strategic parts of my Discovery (read exposed electrical connectors so that it can resist any water ingress) underneath and near where tyre splash could occur. I do not intend to take any other measures to avoid rust other than as for the Pajero. I know that Landrover build a vehicle that is very substantial and I will monitor for rust as any concerned owner would. LeighW
The old girl is on her third engine...
* first ran a bearing (design failure in original engine)
* second had a failure of the water outlet on top of the engine (pls check yours)
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| 1st Apr 2006 11:20 am |
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