Diffuser discolouring

Topics relating to the Lotus Exige S2 (series 2)
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jxbasset
Posts: 5
Joined: Mon Jul 06, 2020 2:48 pm

The outside of the near side of my diffuser has turned from its original black to a rather horrible white colour.

I am unsure what is causing it. Too far away from the exhaust to be heat.

It is going white. Any tips on how to restore the colour?

Thanks
Jamie

PS - That's not a reflection in the photo. It is white in places.

Image
winthattt
Posts: 1074
Joined: Fri Feb 12, 2010 4:45 pm
Location: Sunny Derbyshire

I got mine powder coated. Looked great.
gripster
Posts: 18
Joined: Sun Oct 28, 2018 7:44 pm

Mine has gone a little like that under the U bend of the exhaust where the heat deflector had rusted away. It's only us Exige anoraks that notice :thumbup:
661
Posts: 1487
Joined: Fri Sep 11, 2009 4:36 pm
Location: East Sussex

I guess it's getting hot under the U bend. Best check the heat protection, but they are allowed to do this with time. So long as it's not premature due to a fault.
Graeme
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MrP80
Posts: 227
Joined: Thu Oct 11, 2007 10:14 pm

My old one did it, I just resprayed it and it was good as new. I need to sort U bend on mine as the heat shield is missing and I need to replace
jxbasset
Posts: 5
Joined: Mon Jul 06, 2020 2:48 pm

661 wrote: Thu Mar 04, 2021 7:16 pm I guess it's getting hot under the U bend. Best check the heat protection, but they are allowed to do this with time. So long as it's not premature due to a fault.
She is 12 years old so the discolouration cannot be attributed to a fault. Powder coating looks like the way to go. Thanks all.

Jamie
tlracer
Posts: 647
Joined: Mon May 26, 2003 11:00 am

If it is anodised, the dye can bleach over time with heat or chemicals, so anything even mildly acidic or alkaline such as some cleaners/detergents/degreasers will take colour out.

Another possibility is simply wear over time. Looking at where the colour has gone, it may be slow wear from road grime thrown up by the rear wheel.
661
Posts: 1487
Joined: Fri Sep 11, 2009 4:36 pm
Location: East Sussex

jxbasset wrote: Sat Mar 06, 2021 9:51 am
661 wrote: Thu Mar 04, 2021 7:16 pm I guess it's getting hot under the U bend. Best check the heat protection, but they are allowed to do this with time. So long as it's not premature due to a fault.
She is 12 years old so the discolouration cannot be attributed to a fault. Powder coating looks like the way to go. Thanks all.

Jamie
By fault, I meant the nimbus has disolved, or more likely the screws holding it in place have rusted away allowing it to move out of position and therefore allow direct heat radiation. Worth a look.
Graeme
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