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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5843
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Battery terminal corrosion
Today I noticed on the + terminal that there was some white crusty corrosion, so did the decent thing and took the terminal off and cleaned it up with a wire brush on a drill and did the same with the terminal.
Re-assembled and covered the terminal in Wurth battery grease.

What causes this? 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #219034 14th Mar 2013 5:20pm
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ibexman



Member Since: 13 Dec 2008
Location: Essex
Posts: 2945
United Kingdom 
Google it thers a wealth of information Whistle
Post #219039 14th Mar 2013 5:43pm
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Laurie



Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897
England 2005 Defender 90 Td5 XS CSW Bonatti Grey
Caused by electrolosis between different metals.
Coat with Vaseline to stop it happening. 
Post #219042 14th Mar 2013 6:03pm
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Luismi



Member Since: 04 Nov 2010
Location: Cotswolds
Posts: 178
Spain 2004 Defender 110 Td5 SW Alpine White
That is caused by a galvanic reaction when you joint to diferent metals.

By putting the dielectric grease all around reduces the galvanic reaction.

Cheers
Post #219044 14th Mar 2013 6:07pm
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GUM97



Member Since: 05 Feb 2012
Location: Cheshire
Posts: 3555
United Kingdom 1997 Defender 90 300 Tdi HT Stornoway Grey
Petroleum Jelly (Vaseline) also stops the corrosion Mr. Green An engine to TDi for!
"Land Rover- Proudly turning drivers into mechanics since 1948"
Post #219054 14th Mar 2013 6:31pm
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 5843
United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue
Cheers peeps. For now the terminals have been coated in wurth battery grease and then a smear of grease over the top of the terminal. Fingers crossed. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock
Post #219290 15th Mar 2013 4:11pm
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