Cleaning Stains from 365 / 400 Carburetors

Discussion in '365 GT4 2+2/400/412' started by 15765, Apr 20, 2017.

  1. 15765

    15765 Karting

    May 14, 2012
    Las Vegas NV
    Full Name:
    Chuck King
    What is the best way to clean the stains and oxidation from the outside of Weber Carbs on a 365 / 400 to bring them back to show condition.

  2. jmaienza

    jmaienza Formula Junior
    Silver Subscribed

    Jan 8, 2009
    Full Name:
    #2 jmaienza, Apr 21, 2017
    Last edited by a moderator: Sep 7, 2017
    I used Simple Green Aviation formula diluted 50/50 with distilled water. Let them soak overnight or longer and clean with a soft toothbrush. Heavily soiled areas can be cleaned using a more concentrated formula. Let dry and blow out with compressed air.

    If you are rebuilding them, sealed throttle plate shaft bearings are available from Pierce Manifolds in California. The old design will let air in after the grease thins and can cause vacuum leaks.
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  3. Newman

    Newman F1 World Champ
    Professional Ferrari Technician Consultant Owner

    Dec 26, 2001
    Barrie, ON, Canada
    Full Name:
    Be careful to not remove the dull-green hue from the castings if its still there.

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