Painting over brake fluid contaminated fire wall?

Mopar General Discussions

  1. challenger57

    challenger57 cuda57

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    My hydraulic clutch master cylinder has leaked down my fire wall, and bubbled the paint is there any way to successfully repaint it. I know this thread should go in a paint forum but i don't see it anymore.
     
  2. mbaird

    mbaird mbaird

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    scrub it down with degreaser then use wax and grease prep...I had sMe issue with leaking Master Cyl.
    Rinse really well
     
  3. Bodyperson

    Bodyperson Pedal to the metal

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    Hydraulic fluid should have no damaging effects to paint. More specifics might help us with your situation.
     
  4. mbaird

    mbaird mbaird

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    Most likely using brake fluid.
     
  5. Bodyperson

    Bodyperson Pedal to the metal

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    Oh, I thought it was hydraulic fluid. I'm sure the few I worked on used hydraulic fluid. I may be wrong.
     
  6. Syleng1

    Syleng1 Karma is real and Life is short... FABO Gold Member

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    Switch system over to DOT V(5) it’s a different blend and if it is on paint it will not hurt it.

    I used it in my complete new brake system but was told it had a different pedal feeling.
    I stopped feeling pedals a long time ago. Lol!
     
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    • challenger57

      challenger57 cuda57

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      Let me make a correction, i ment brake fluid, used wrong terminology.
       
    • challenger57

      challenger57 cuda57

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      It was brake fluid in my hydraulic clutch.
       
    • Arron tate

      Arron tate T B L

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      Hello challenger57,

      I had the same condition with my master cylinder leaking and running down the firewall leaving a nasty streak and contamination of the lip where the steering column goes through the firewall.
      This is how I repaired it.
      Note: I removed the engine to rebuild it so mine was a not as hard to do.
      Removed steering column, master, and brake lines.
      Washed effected surfaces with degreasing solvent.
      Sanded all surfaces as best as i could with sand paper.
      Cleaned surfaces with Prepsol.
      Painted with self etching primer.
      Painted with color matched polyurethane automotive paint. 4 to 1 to 1 mix.
      This was all done with a airbrush from Harbor Freight. Used 10 psi to run the air brush.
      Prep is everything, do a sample not on the car with the airbrush to get get familiar with the spray pattern.

      3/4 And 3 Oz Airbrush Kit
      Deltron®

      Hope this helps.
      happy Mopar :)
      Arron
       
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      • clifcuda65

        clifcuda65 Old Mopar Geezer

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        I have had that happen several times (owned my 65 Cuda since 73) and in 2003 when I "Completely" Re did my Brakes system (new Front Disk install, new Master Cylinder, new SS Brake lines, new rear wheel cylinders etc. ) I decided to switch to DOT 5 ( Silicone )... I ain't had a problem since !!! Now if it leaks... It hurts Nothing... In fact, I found it Cleans ... LoL..
        Now this is not for everyone... Because DOT 3 or 4 does NOT mix with DOT 5 !!!!! Every Piece in contact with the old DOT 3 or 4 needs to be replaced... Or at least the metal parts have to be super cleaned...
        Note: I made a "DOT 5" badge to put on the New MC so I would not forget... And add DOT 3 by mistake!!
        Getting Old and I tend to forget things sometimes... Sigh~

        20190113_105150.jpg
         
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        • challenger57

          challenger57 cuda57

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        • challenger57

          challenger57 cuda57

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          I know the feeling about forgetfulness uhhh what were we talking about. Thanks for all the suggestions. Harbor Frieght is my favorite store.
           
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          • Arron tate

            Arron tate T B L

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            Hello challenger57,
            Sorry I forgot to post the before and after pix.
            Will install new master, lines, and new brake proportion valve to complete the reapir.
            Happy Mopar :)
            Arron.
            Fluid on Firewall before A.jpg
            Fluid on Firewall after repair B.jpg
            Fluid on Firewall air brush C.jpg
             
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