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Thread: Rubber undercoating under battery.

  1. #1
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    Default Rubber undercoating under battery.

    This is a good idea to do if your car is starting to rust where the battery sits.

    Step1: remove the battery.

    Step2: disconnect the overflow hose from the radiator and remove the 13mm bolt that hold down the battery tray/overflow bottle. after that you should be looking like this.



    Step3: Use a scraper to knock off loose paint/dirt and rust. Then i used a wire wheel in a drill to scuff off most of the rust and 80 grit sand paper.


    Step4: after you have gotten the surface scuffed and sanded and cleaned. Start taping up everything you dont want covered.

    Step5: (optoinal) Prime the area


    Step6: After primer dries apply your rubber under coating. (let it dry real good before going any farther)

    (note) you dont have to appy it as high up as I did on the inner fender hump.

    Step7: untape


    step8: you should be able to start putting you overflow/battery tray back in and reinstall your battery and your done.

    Now your car will be protected from rust in this area. hope this thread is helpfull thanks for veiwing. Now go mod somthing!

    3.4L with some goodies
    custom paint with a touch of 1978
    http://www.v6f-body.com/showthread.php?t=3065

  2. #2
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    It was much worse under the battery on my brother's chicken. Had to weld in some metal and a nut so the overflow tank would have something to bolt to. We also had some rust under the White Camaro as well. Just make sure you get the underside of it as well.

    The Famiry: 96 3.8 Camaro, 94 3400 swap Chicken 96 3.8 Firechicken, 87 5.0 IRoc, 95 Lt1 swap 3.4 Camaro, 95 Z28, 93 Trans Am RIP

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    Nice work Brent, and I thought mine looked bad cause the paint was rubbed threw in places.

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    Quote Originally Posted by 3.8blackmaro View Post
    It was much worse under the battery on my brother's chicken. Had to weld in some metal and a nut so the overflow tank would have something to bolt to. We also had some rust under the White Camaro as well. Just make sure you get the underside of it as well.
    Yes I did do the underside as well.

    Quote Originally Posted by fbodyrs96 View Post
    Nice work Brent, and I thought mine looked bad cause the paint was rubbed threw in places.
    Thanks, yeah mine has been bugging me for a while.

    3.4L with some goodies
    custom paint with a touch of 1978
    http://www.v6f-body.com/showthread.php?t=3065

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    Thumbs up

    Great idea, thanks for putting this up. I have the same rust problem in the exact area and whenever i pop the hood at car shows, that spot is there just mocking me. Definitely gonna try this.

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    Quote Originally Posted by Pewter six View Post
    Great idea, thanks for putting this up. I have the same rust problem in the exact area and whenever i pop the hood at car shows, that spot is there just mocking me. Definitely gonna try this.
    Awesome man.

    3.4L with some goodies
    custom paint with a touch of 1978
    http://www.v6f-body.com/showthread.php?t=3065

  7. #7
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    AUscorp1 is offline First Sergeant LS PLUS Supporting Membership
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    Nice permanent fix for an all too common problem.
    2001 Firebird Convertible, V6 4A, Y87, All Black, Daily Driver
    32MM Front Sway Bar; Whisper Lid

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    Quote Originally Posted by AUscorp1 View Post
    Nice permanent fix for an all too common problem.
    Yes it was really bothering me.

    3.4L with some goodies
    custom paint with a touch of 1978
    http://www.v6f-body.com/showthread.php?t=3065

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