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348 fog lense replacement

Discussion in '348/355' started by wda24729, Jun 2, 2017.

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  1. wda24729

    wda24729 Formula 3

    Sep 22, 2014
    1,000
    Devon, UK
    Full Name:
    Graham
    #1 wda24729, Jun 2, 2017
    Hi - Before I tackle the replacement of the lenses on my 348, are there are things I need to be aware of, or indeed any threads already covering the job...I can't find any! Thanks
     
  2. John Glen

    John Glen Formula Junior

    Dec 30, 2009
    494
    Victoria, B.C, Can.
    Full Name:
    John Glen Wesanko
    #2 John Glen, Jun 2, 2017
    Make sure you get some good quality sealant to apply when you are ready to install new lens. I used a marine product called Sikaflex which cures almost like rubber.
     
  3. wda24729

    wda24729 Formula 3

    Sep 22, 2014
    1,000
    Devon, UK
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    Graham
    #3 wda24729, Jun 2, 2017
    Thanks - Any tips as to how to get the old ones out. Do I smash them out?
     
  4. John Glen

    John Glen Formula Junior

    Dec 30, 2009
    494
    Victoria, B.C, Can.
    Full Name:
    John Glen Wesanko
    #4 John Glen, Jun 2, 2017
    Mine was broken due to a stone hitting it. I carefully removed the broken bits so as not to damage the housing. Cleaning out the old sealant is a bit time consuming....
     
  5. wda24729

    wda24729 Formula 3

    Sep 22, 2014
    1,000
    Devon, UK
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    Graham
    #5 wda24729, Jun 2, 2017
    Ok - Just wondered if there was an trick to removing them. Mine are just badly stoned chipped, not broken
     
  6. SoCal1

    SoCal1 F1 Veteran
    Owner Silver Subscribed

    Jun 14, 2011
    8,635
    SoCal LA/OC/New Mexico
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    Tim Dee
    #6 SoCal1, Jun 2, 2017
    I have not done my 348 lens yet but have done many other headlamps

    I put them in a preheated oven at 200 degrees for an hour for 10 min on a piece of wood so the metal racks dont burn them.
    That got them to pull apart nicely, sometimes if they are real tight another 5- 10 min will do it. some assemblies will need 220-250 degrees

    I try to avoid heat guns with HL assemblies

    Less heat is best

    :)
     
  7. vvassallo

    vvassallo F1 Veteran

    Aug 4, 2006
    8,329
    Palos Verdes
    Full Name:
    Vince V
    #7 vvassallo, Jun 2, 2017
    your wife's okay with that? ;)
     
  8. SoCal1

    SoCal1 F1 Veteran
    Owner Silver Subscribed

    Jun 14, 2011
    8,635
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    Tim Dee
    #8 SoCal1, Jun 2, 2017
    Beoitch don't know what a stove is !!! Plus I have 2 kilns out back

    See you Sunday at the show


    :)
     
  9. wda24729

    wda24729 Formula 3

    Sep 22, 2014
    1,000
    Devon, UK
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    Graham
    #9 wda24729, Jun 3, 2017
    Ive got a powder coat oven so will give that a try, but also keep a very close eye on them! I want to avoid smashing the glass if possible. Thanks
     
  10. ///Mike

    ///Mike F1 Veteran

    Dec 11, 2003
    6,097
    Bugtussle
    #10 ///Mike, Jun 3, 2017
    Let us know how it works out. Mine aren't bad but I'm considering replacing them just to freshen up the nose a bit.
     
  11. wda24729

    wda24729 Formula 3

    Sep 22, 2014
    1,000
    Devon, UK
    Full Name:
    Graham
    #11 wda24729, Jun 3, 2017
    Piece of cake, although it only took a 2-3 minutes at 200 degrees, any longer and I would have come back to a puddle of plastic!

    Once warmed through, the mastic started to give and the lens just slid right off. However Ive decided Im just doing the one as I might have just been lucky. The other side is actually like new so no need.

    I got my set off a fellow F-chatter, good price delivered to UK.

    Tim - Thanks for the tip
     
  12. SoCal1

    SoCal1 F1 Veteran
    Owner Silver Subscribed

    Jun 14, 2011
    8,635
    SoCal LA/OC/New Mexico
    Full Name:
    Tim Dee
    #12 SoCal1, Jun 3, 2017
    Nice !!!!!!!

    I know its freaky putting it in an oven but thats the deal :)
     

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