Headlight Corrosion - can it be reduced or prevented?
What causes headlight reflector corrosion and decline? I'm guessing the obvious likely cause. Moisture ingress through the joint between the lens and the reflector?
Has anyone tried applying a sealing tape around the circumference of that joint? To delay or stop the decay of reflectors. Would anyone encourage or discourage that idea and any particular sealing tape? And are there any recommendations for good reflectors at a sensible/good price please? |
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Thanks Clan.
Now, rhetorical, how do I stop the lights heating and cooling.... ;) . |
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I don't know how well the new aftermarket headlight reflectors hold up. When looking for used reflectors, the earlier ones seem to be less prone to corrosion than the later ones. The reflectors on my 1990 were very corroded, and I replaced them with reflectors off a 1981 model, which were still fine despite over 30 years in tropical Cairns. They were just a little dusty, suggesting the seal wasn't perfect.
I don't know what year the rectangular headlights were introduced -- 1981 must be near the beginning? |
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Replaced mine two years ago, still in good fettle, they came with the car when a bought it. I kept the old ones just in case I can get them re-chromed in the future, the little plastic clips are still the worst bit to deal with.
Scott |
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If your reflectors have lost their chrome from the bottom face you can cover that section with chrome tape. It will get back some of the reflectivity and also keep your MOT man a bit happier. Take your time and get it nice and smooth with no bubbles. At your own risk you can use a very soft micro fibre cloth to lightly buff up the rest of the reflector. Start with VERY light pressure to remove the dust first or you will just scratch it.
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If you think heat is a problem you could fit LED bulbs which run cooler than incandescent ones.
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