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ScarboroughSeadog

Member Since: 21 Jul 2022
Location: Scarborough
Posts: 110

2013 Defender 110 Puma 2.2 DCPU Keswick Green

Galvanic corrosion

Click image to enlarge

Click image to enlarge
I’m familiar with the corrosive effect of steel next to aluminium from my 45 year old lightweight, but had hoped LR might have looked to mitigate the issue by 2013!
My Puma has serious holes in the second row aluminium footplate- and in areas not in direct contact with steel. Grateful for any comments and solutions. Plate over with a new aluminium section from the inside, with appropriate isolation washers between the metals? Is a pre-formed floor section available?
Thanks

23rd Jul 2022 8:57pm

Mossberg

Member Since: 29 Feb 2020
Location: Lancs
Posts: 553

1993 Defender 90 300 Tdi HT Aintree Green

YRM seem to be the go to place for metalwork. That would be my first point of call.

24th Jul 2022 2:54am

rustandoil

Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 738

2005 Defender 110 Td5 XS DCPU Bonatti Grey

Further inspection required there....I have a feeling you'll find a lot more misery 😥

24th Jul 2022 6:23am

bodstruck

Member Since: 09 May 2020
Location: Wiltshire
Posts: 908

I had this level of corrosion on my 05 110. I was shocked at that given its age but a 2013

As said above, a replacement panel from YRM will be the solution. They do complete upstand which are riveted in place. It is not a horrendous job but does take a while. On the plus side, while you have the floor panel and upstand off it gives good access to assess/clean the crossmember and top of the chassis rails. Perhaps also replace the floor plate screws with SS and as you say, isolate everything when it goes back together.

24th Jul 2022 7:23am

ScarboroughSeadog

Member Since: 21 Jul 2022
Location: Scarborough
Posts: 110

Thanks guys- YRM seems to be the place to go, and not too far from me either. I’m wondering if the degree of corrosion is due to some electrical or earthing issue- the vehicle has been fitted with a VHF radio from new (2013) and in very regular use. Just trying to think of reasons the aluminium corrosion is so bad- particularly in sections which aren’t in immediate contact with steel…..

24th Jul 2022 8:06am

Jerry

Member Since: 13 Nov 2015
Location: Cardiff
Posts: 196

2015 Defender 110 Puma 2.2 Adventure Phoenix Orange

Would your seaside location affect this type of corrosion?

24th Jul 2022 8:22am

ScarboroughSeadog

Member Since: 21 Jul 2022
Location: Scarborough
Posts: 110

The vehicle has spent most of its life in Scotland and Cumbria- but don’t think it should do in any event.

24th Jul 2022 9:58am

rustandoil

Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 738

If you get to have the floor and the upstand out, consider replacing the body crossmember, the YRM version with the bolt on brackets is good 👍🏻

24th Jul 2022 11:56am

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