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Glass removal 365 GT4 2+2/400/412

Discussion in '365 GT4 2+2/400/412' started by 3wings, May 4, 2008.

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  1. 3wings

    3wings Karting

    Apr 7, 2008
    139
    South Africa
    Full Name:
    Mike
    #1 3wings, May 4, 2008
    As part of the total repaint of my 1975 365 GT4, the paint-shop are recommending the removal of all the glass - at my risk of course!
    I've read the horror stories of cracked rear windshields and the high cost of replacement. Although I wasn't responsible, my own back-up screen from a 400i was cracked during removal so I should have learned my lesson. What are the odds of this happening, what percentage of old screens crack during removal/replacement ?
    I suppose my question really is this: Is it vital to remove all the glass in order to get a 'proper' job ? What's the chance of there being any rust gremlins hiding behind the sealant that need to be treated in the first place ? The sort of cancerous rust that might just bubble up and emerge in a couple of years time ?
    Why do paint-shops like to insist on removing the glass ? Is it purely cosmetic....so that the paintflow goes all the way under the trim rather than ending on the edge of it?
    What's the heads up on this ?

    Looking forward to getting some help on this one.,

    Mike
     
  2. markcF355

    markcF355 F1 Rookie

    Jun 6, 2004
    3,493
    Schmeckelstan
    Full Name:
    Mark
    #2 markcF355, May 4, 2008
    IMO leave it in.

    After 20 years of service it has probably developed small unseen fractures that will remain unseen as long as it remains supported by the frame. Unless you plan on replacing it anyway, why risk a $2k+US piece of glass just for a slightly better paint job?

    If your staying with the same color then there is really no point to it. As far as hidden rust: how rusty is the body now? If it's loaded with rust bubbles, thats one thing. I've seen bare metal resprays that have rust bubbles a year later.

    Also, is this an empty tub? How would you protect the interior from over spray? Taping a piece of something over the hole won't work! The SMALLEST gap will allow the paint mist to fill the car!

    I wouldn't even remove the trim, just tape it. The cost of the parts you'll feckup while trying to remove them isn't worth it.

    IMO
     
  3. jacques

    jacques Formula Junior

    May 23, 2006
    877
    Los Angeles/Florida
    #3 jacques, May 4, 2008
    Amen to Marc's post!!! I repainted my 1980 400i three years ago with out removing the glass..clear down to clear metal and as Marc said bubbles appeared again..As I remarked a year or so back that the compound they used to implant the glass into was probably compounded from the worker's recycled salami and pasta lunch and now the only way to get the windscreen out is with a 5lb. sledge- hammer and a three-foot crowbar...Leave the glass in!!!!!.all the best..Jacques..
     
  4. rickard

    rickard Rookie

    Apr 13, 2007
    38
    toronto canada
    Full Name:
    rick impera
    #4 rickard, May 4, 2008
    Mike,
    Speaking from past experiences and with the same problem.
    If you have rust you should remove the glass. No use painting over rust and having it come back in a short time. Find someone with great experience to carefully remove the glass. If it breaks just look at previous threads for now there are companies that can supply you with a new back glass. The cost may be as high as $3,000.
    Good Luck,
    Rickard

    The moral is " if it is not broken, don't fix it".
     

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