 What's this in my headlights? |
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| 1970 Neun vierzehn |
 Sep 25 2006, 03:00 PM
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#1
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Advanced Member  Group: Members Posts: 3,199 Joined: 16-March 06 From: cincinnati, ohio Member No.: 5,727  |
If you look very closely, you will see very small accumulations of what appears to be fine white powder on the inside surface of my Cibie H-4s. It does not seem to adversely affect the lighting characteristics, however. If you tap gently on the lense surface, it sometimes drops to the bottom of the h/l shell. Any ideas?
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| mihai914 |
Sep 25 2006, 03:05 PM
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#2
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Senior Member Group: Members Posts: 800 Joined: 2-March 05 From: Montreal, QC Member No.: 3,697 Region Association: None 
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QUOTE(1970 Neun vierzehn @ Sep 25 2006, 05:00 PM)  If you look very closely, you will see very small accumulations of what appears to be fine white powder on the inside surface of my Cibie H-4s. It does not seem to adversely affect the lighting characteristics, however. If you tap gently on the lense surface, it sometimes drops to the bottom of the h/l shell. Any ideas? Probably dust or remains from a broken light bulb. I washed the inside of the Bosch H-4s I have with some warm soapy water and then placed it in the sun to dry, they came out pretty clean and it didn't affect the reflective finish. |
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| Eric_Shea |
Sep 25 2006, 03:09 PM
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#3
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PMB Performance Group: Admin Posts: 19,275 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains  |
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| Spoke |
Sep 25 2006, 03:13 PM
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#4
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Jerry Group: Members Posts: 6,984 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(mihai914 @ Sep 25 2006, 05:05 PM) I washed the inside of the Bosch H-4s I have with some warm soapy water and then placed it in the sun to dry, they came out pretty clean and it didn't affect the reflective finish. I did the same thing with the headlamps for an '86 Audi that I had. The fixtures had a dust haze accumulation on the inside. Took the fixture out and washed with warm soapy water. Rinsed clean and then dried it with a hair dryer pointed into a 1 inch diameter plastic hose to direct the warm air into the fixture. Spoke |
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| So.Cal.914 |
Sep 25 2006, 03:13 PM
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#5
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"...And it has a front trunk too." Group: Members Posts: 6,588 Joined: 15-February 04 From: Low Desert, CA./ Hills of N.J. Member No.: 1,658 Region Association: None |
Fairy dust.
I've seen it in light bulbs before but I haven't the faintest idea. |
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| 1970 Neun vierzehn |
 Sep 25 2006, 03:17 PM
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#6
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Advanced Member Group: Members Posts: 3,199 Joined: 16-March 06 From: cincinnati, ohio Member No.: 5,727 |
Mihai,
A bulb has never broken in the h/l as yet. This substance is white. I've never seen "dust" white like this. Eric, I just knew someone would insinuate some illegal activity associated with this post. (IMG:style_emoticons/default/rolleyes.gif) |
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| Aaron Cox |
Sep 25 2006, 03:23 PM
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#7
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
snort it. you may get lucky. but you may die too.
interesting choice (IMG:style_emoticons/default/smile.gif) wash em |
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| Katmanken |
Sep 25 2006, 07:30 PM
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#8
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You haven't seen me if anybody asks... Group: Members Posts: 4,738 Joined: 14-June 03 From: USA Member No.: 819 Region Association: Upper MidWest |
Wash with soapy water,
Rinse well, final rinse with distilled, Pour in a bottle of rubing alcohol- as high a proof as you can find, slosh around to absorb water, pour out, place in sun to evaporate alcohol..... and.... no spots!! (old telscope optics cleaning trick) Ken |
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