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Thread: RUST rear axle many pix

  1. #1
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    RUST rear axle many pix

    After a good part of the night and most of the day, the rear axle was de-rusted and now looks halfway OK.
    It is much more than a pita to do than the front axle, because rust it is mostly inaccessable with power tools. The only way is to manually brush and scrape the rust off, and you need to be in good physical and mental shape for doing it.

    This car is not even five years old, and the last time I did it was only a year ago!

    Here some pix before:


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    PIX AFTER:



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    EDIT:

    After treatment as above, both axles were painted over with the same sort of paint as used for painting steel bridges. That sort of paint has a much higher viscosity than rattle can paint, and consequently results in a much thicker layer. After the (salty) winter, both axles look freshly painted and perfectly rust free.


    For front axle see:

    https://mirageforum.com/forum/showth...usted-many-pix


    qwert


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    Last edited by foama; 03-04-2021 at 11:05 AM.

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  3. #2
    Senior Member klroger's Avatar
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    I've seen the rust like that in Ontario... (Here salting the roads is cheeper than plowing the roads ) It looks very dry & unprotected. Spray the axles ( why not the whole car ) with the Krown rust proof spray. It will seep into seams & material & stop this. You do have to apply it regularly, but it will stop it. Do not use a wax or grease based undercoat as it only covers parts & does not creep into places. If it doesn't drip on your driveway or creep from the doors, it"s the wrong stuff... Try it!!!
    Roger

        __________________________________________

        click to view fuel log View my fuel log 2018 Mirage GT 1.2 automatic: 37.3 mpg (US) ... 15.9 km/L ... 6.3 L/100 km ... 44.8 mpg (Imp)


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    inuvik (03-04-2021)

  5. #3
    Think of how much weight Mitsubishi saved by using such thin paint!

        __________________________________________

        click to view fuel log View my fuel log 2014 Mirage ES 1.2 manual: 63.2 mpg (US) ... 26.9 km/L ... 3.7 L/100 km ... 75.9 mpg (Imp)


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  7. #4
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    UPDATE !

    I should have posted this much earlier. Rattle-can undercoating and paint is too thin, and will not last. I repainted it with exactly the same sort of paint used for ocean-going ships or steel bridges. It is much more viscose, so the paint-layer is much thicker, and it has meanwhile proven to last. The sell it under countless brands, Hammerite is probably the most well-known. You know you have the right stuff when it is almost as thick as honey, stinks strongly of paint, and takes a week to harden.


    This is the same car years later:

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    Last edited by foama; 03-04-2021 at 11:10 AM.

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    george (11-06-2022),inuvik (03-04-2021),MetroMPG (03-04-2021),supesusuta (03-09-2021)

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