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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731   
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I've just fitted a stainless steel sill to the back door of my Puma. The screws from the old sill are crappy grey steel (galvanised?) so I used some nice stainless ones... then thought about it.
I guess the door frames are some kind of aluminium alloy (softer than steel) so corrosion may be an issue. I know there are loads of theoretical scenarios but keeping it real: Has anyone actually used stainless screws in Defender (alloy) bodywork? Were there any problems worth noting? Many thanks for any help, Matt Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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9th Oct 2011 12:20pm |
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but someone will come along and advise 
| Surrey Rover Member Since: 20 Dec 2010 Location: Surrey Posts: 360 |
It's called Duralac anti corrosice joining compound, available from eblag and other online retailers. I am sure there are other compounds available also. Nick
2.2 110 Tipper |
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9th Oct 2011 1:25pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Thanks. I considered similar joining compounds but they only look okay for coating larger surfaces. I doubt they'll stay in a screw hole when a screw goes in... I'm particularly interested if anyone has thrown caution to the wind and flouted the laws of electrochemistry. If it's only going to cause a bit of pitting in the hole thread, I don't mind  Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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9th Oct 2011 1:39pm |
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| Zagato Site Supporter Member Since: 08 Jan 2011 Location: Billingshurst West Sussex Posts: 5026 
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Duralac that's the stuff
 You could always put in a plug of some sort, similar idea to a raw plug  Anything to provide a barrier. They used to use hardened steel screws in the Series models and they are impossible to get out once rusted in  You have to grind them off and drill new fixing points so good idea to replace them with some kind of barrier.... |
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9th Oct 2011 1:49pm |
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| K9F Member Since: 12 Nov 2009 Location: Bournemouth Posts: 9610 
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I am a Marine Electrical Engineer and as Zag said it is an issue in the boating fraternity. The vessels we operate the hulls are made entirely out of aluminium. I have seen first hand the evidence of dissimilar metal corrosion and it is truly shocking and amazing! Cable glands both steel and brass placed on build through bulkheads that are swinging in the breeze wuith 2-3" of corrosion around them and the original hole drilled to accommodate the gland being twice the size. It cannot be emphasised enough....'Throw caution to the wind' as much as you like but there will be great cost later on! If it is your intention of not keeping the vehicle 'crack on' but someone else will inherit the cost of repair or it will most certainly be reflected in your selling price. If you're doing a job....do it properly would be my advice. If the screws/aluminium are environmentally sealed against each other against moisture ingress and the atmosphere they should be ok. 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!! |
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9th Oct 2011 1:51pm |
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| Zagato Site Supporter Member Since: 08 Jan 2011 Location: Billingshurst West Sussex Posts: 5026
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Have a look at K9's bedtime reading - Scroll down to the Aluminium & Stainless Steel headings
 Wood doesn't look such a bad material after-all 
http://www.kastenmarine.com/metalparts.htm |
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9th Oct 2011 2:39pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Thanks for all your advice!
Luckily a member on another forum rebuilt his 110 ten years ago using stainless screws but he put a dab of waxoil on each (!) screw thread - has had no corrosion problems so far
So it's Waxoil for me (or something equivalent here in Germany) - sort of "oily joining compound" - and, not throwing caution to the wind, I'll check for corrosion in a year or two 
Cheers, Matt Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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9th Oct 2011 2:47pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Brilliant reading (geek?) reminds me of school days
So stainless fastenings in alloy aren't THAT bad after all, especially if I can waxoil them and keep the salt out this winter. I agree about wood - and there are a lot of Morris Travellers still on the roads
Matt Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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9th Oct 2011 2:59pm |
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| K9F Member Since: 12 Nov 2009 Location: Bournemouth Posts: 9610
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 Have printed it off already, framed it and riveted and screwed it to the ceiling above my bed, ensuring of course that all the correct assembly processes have been utilised whilst also ensuring I have kept below the safe working load of the ceiling.
Seriously I did find it interesting though! 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!! |
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9th Oct 2011 3:15pm |
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