Results 1 to 4 of 4

Thread: Headlight lenses fogging

  1. #1
    Lighting Specialist jaudette3's Avatar
    Join Date
    Jun 2003
    Bend, Oregon

    Headlight lenses fogging

    Looking for some help...

    Every once in a while I come across a headlight with a slight bit of “foginess” on the inside of the lenses. This happened most recently to an NOS Marchal SEV Amplilux Headlight that I bought. A bit of a puzzle as the area behind the lenses is not sealed and air circulates freely.

    I’m wondering if anyone has successfully cleared this fog and what method was used. The concern is doing something that might damage the reflector. Compressed air? Schlossing around liquid, such as water, cleaner, etc? The holes for the bulbs generally don’t give much room for maneuvering as far as wiping with Q-tips or somesuch.

    All help greatly appreciated.

    Lighting Resources for Hardcore Air-Cooled Porsche Enthusiasts”
    John Audette - Porsche Lighting Anorak
    AC Shop: BEST-IN-CLASS Air Cooled 911 Lighting Parts =>
    AC Site: The Air Cooled 911 Light Resource =>
    Instagram: Please Follow => AC Shop Instagram

  2. #2
    I cleaned out a set H5’s off an SC that sound as u are describing. Used an ultra sonic parts cleaner worked great. Still look good after 8 years.
    Bill Barnich
    R Gruppe Nr.230
    Early S Nr.960
    71 911T/2.7 Tangarine
    73 911?/3.6 work in progress

  3. #3
    Senior Member
    Join Date
    Jul 2011
    Chicago Area
    John I did this on my 964 lenses same thing not good access so I took a wooden dowel rod and wrapped some paper towels in a ball and taped it to the end of the rod then just sprayed windex on the ball as needed. Use the thinnest/strongest rod you can for more room to maneuver inside.
    Mike Fitton # 2071
    2018 911S Carrera White
    2012 991 Platinum Silver ( Gone)
    1971 911T Targa Bahia Red (Gone to France)
    1995 911 Carrera Polar Silver (Gone)

    No Affiliation with City of Chicago!

  4. #4
    Oil Cooled Heart Bullethead's Avatar
    Join Date
    Jul 2008
    South Florida
    Hi John, I bought several sets of NOS yellow Amplilux about 15 years ago, they all had that "fog" probably just film from sitting on a shelf (even boxed). I used Pre Kleano on a couple of sets, splashed some in and drained it out with good results. No wiping needed. The last couple of sets (including a pair sold here) I used denatured alcohol, same effect but did need to stick a detail brush in to get a few spots. FWIW, Pre Kleano is one of those wonder liquids that's great for much more than prep for paint, takes off minor marks on vinyl and rubber trim, cleaning plastics, etc. Hope this helps.

    ESR # 1537

    '62 356S Notchback Hotrod
    '67 S Das Geburtstagsgeschenk
    '68 T Targa Sportomatic
    '68 L SW Targa Sportomatic
    '70 914/6 GT

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Message Board Disclaimer and Terms of Use
This is a public forum. Messages posted here can be viewed by the public. The Early 911S Registry is not responsible for messages posted in its online forums, and any message will express the views of the author and not the Early 911S Registry. Use of online forums shall constitute the agreement of the user not to post anything of religious or political content, false and defamatory, inaccurate, abusive, vulgar, hateful, harassing, obscene, profane, sexually oriented, threatening, invasive of a person's privacy, or otherwise to violate the law and the further agreement of the user to be solely responsible for and hold the Early 911S Registry harmless in the event of any claim based on their message. Any viewer who finds a message objectionable should contact us immediately by email. The Early 911S Registry has the ability to remove objectionable messages and we will make every effort to do so, within a reasonable time frame, if we determine that removal is necessary.