GTSi rear exhaust grille panel/diaper support corners | FerrariChat
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GTSi rear exhaust grille panel/diaper support corners

Discussion in '308/328' started by Du_Man, Jul 13, 2023.

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  1. Du_Man

    Du_Man Formula Junior
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    Apr 23, 2003
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    Dallas, Texas
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    Derek
    #1 Du_Man, Jul 13, 2023
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    Removed the rear exhaust diaper this evening - further inspection confirms it needs some love and attention. Can someone tell me what is happening in these support square corners that are very rust rotted on mine?

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    What is being riveted? It feels like all metal - like thicker metal plates riveted to the sandwiched panel section. It's so corroded I can't determine what exactly needs to be replaced to correct and restore the rear exhaust cover/diaper.
     
  2. 76SS

    76SS Karting

    Feb 28, 2014
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    South Carolina
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    Jeff Kelley
    #2 76SS, Jul 15, 2023
  3. 76SS

    76SS Karting

    Feb 28, 2014
    55
    South Carolina
    Full Name:
    Jeff Kelley
    #3 76SS, Jul 15, 2023
    One side note about it… the lower piece that is riveted on was the only piece that I had to replace. - Jeff


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  4. 76SS

    76SS Karting

    Feb 28, 2014
    55
    South Carolina
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    Jeff Kelley
    #4 76SS, Jul 15, 2023
    Sorry…upper not lower


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  5. Du_Man

    Du_Man Formula Junior
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    Derek
    #5 Du_Man, Jul 15, 2023
    Thank you..... You are confirming what I discovered after looking at this section again - an insulation sandwich! Your resto work is awesome.
     
  6. Du_Man

    Du_Man Formula Junior
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    Derek
    #6 Du_Man, Jul 15, 2023
    What finish did you use? Paint? I guess not powdercoat.....
     
  7. 76SS

    76SS Karting

    Feb 28, 2014
    55
    South Carolina
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    Jeff Kelley
    #7 76SS, Jul 16, 2023
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    I only had surface rust on all but the two pieces mentioned earlier so I blasted the whole diaper first. Then I used the metal prep product which gives it the look in the pre paint picture. Finally I sprayed the POR-15 semi-gloss black which the finish in the last picture. 10 years later its still looks great. Image Unavailable, Please Login


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  8. Du_Man

    Du_Man Formula Junior
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    Apr 23, 2003
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    Derek
    #8 Du_Man, Jul 17, 2023
    Your panel is in much better shape than mine.... finish looks great.

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    my panel corners look like a bag of marbles......gonna push the limits of my panel-beating skills but I think I can do better than the last bodyman. I need to research a high-temp body filler to skim back to smooth.
     
  9. 76SS

    76SS Karting

    Feb 28, 2014
    55
    South Carolina
    Full Name:
    Jeff Kelley
    #9 76SS, Jul 17, 2023
    I had dents like that too but they can be worked out with a body hammer and dolly, just don’t get in a hurry. I don’t think you will need to skim-coat. Good luck!


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