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 Holes above front indicator
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greg124
Starting Member

United Kingdom
6 Posts

Posted - 10 Nov 2017 :  21:30:04 Show Profile Reply with Quote
My 96 has the usual holes above the front indicator/sidelight unit, and it appears this is approximately where one corner of the aluminium bracket that retains said unit sits. Considering the bracket also has white powdery deposits,add the presence of water and a small electric current, and this looks like differential corrosion.
Has anyone come up with a good solution for this? Before I attempt to re-invent the wheel

Derek
V4 Guru

United Kingdom
1779 Posts

Posted - 11 Nov 2017 :  11:36:30 Show Profile Reply with Quote
On my '76 these U shaped retainers were steel and rusty so I remade them. Can't think why they would be made of an alloy. Any one else with alloy retainers? I can imagine someone making replacements from alloy strip because that's what was available and was easy to bend up.
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melle
V4 Guru

United Kingdom
2270 Posts

Posted - 11 Nov 2017 :  14:41:53 Show Profile Visit melle's Homepage Reply with Quote
They should be steel and as Derek already indicated, most are rotten. I've remade a good few from random scrap metal, both mild steel and stainless.

www.saabv4.com
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greg124
Starting Member

United Kingdom
6 Posts

Posted - 12 Nov 2017 :  14:04:06 Show Profile Reply with Quote
Thank you both.
If someone has made these aluminium brackets up at home, they have taken time and care doing so. Unfortunately they are now badly corroded.
I'm sure I have some stainless lying around somewhere, as this sounds the best solution
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72sonett3
V4 Fan

Spain
199 Posts

Posted - 12 Nov 2017 :  21:49:41 Show Profile Reply with Quote
On my '77 96 the bracket is steel too. The unit itself is an alloy but it sits inside a rubber boot that insulates it from the steel fender.

--
'72 97
'77 96L conv.
'79 96GL (LPG)
'83 900i (LPG)
'95 900SE conv.
'99 9-3T

Edited by - 72sonett3 on 12 Nov 2017 21:59:09
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greg124
Starting Member

United Kingdom
6 Posts

Posted - 14 Nov 2017 :  19:08:54 Show Profile Reply with Quote
Unfortunately there is nothing insulating the steel bolts from the alloy light unit. This has resulted in the first broken bolt on this project. Perhaps I should replace the bolts with plated ones when refitting
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72sonett3
V4 Fan

Spain
199 Posts

Posted - 14 Nov 2017 :  19:56:12 Show Profile Reply with Quote
I forgot if the lights have a dedicated ground wire or if the ground connection is through the bolt and bracket to the steel wing.

If there is no ground wire it would be a good thing to fit one and use plastic bolts.

--
'72 97
'77 96L conv.
'79 96GL (LPG)
'83 900i (LPG)
'95 900SE conv.
'99 9-3T
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