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  1. #1
    Senior Member Three Rings tsbpenguin's Avatar
    Join Date
    Mar 15 2008
    AZ Member #
    26471
    My Garage
    07 Tundra
    Location
    303 (CO)

    How to clean surface rust from block?

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    So I bought a 2.7t BEL block from a guy that he had bored to 82.5mm for a 3.0 build but he must have stored it outside because it has some surface rust. My main concern is cleaning it out of the freshly bored/honed cylinders without having to re hone and take more material off the cylinder walls. Any recommendations? Acid wash? Electrolysis?

    Sent from my SM-G955U using Audizine mobile app

  2. #2
    Senior Member Three Rings tsbpenguin's Avatar
    Join Date
    Mar 15 2008
    AZ Member #
    26471
    My Garage
    07 Tundra
    Location
    303 (CO)

    Picture for reference:

    20180427_144654.jpeg

    Sent from my SM-G955U using Audizine mobile app

  3. #3
    Senior Member Three Rings tsbpenguin's Avatar
    Join Date
    Mar 15 2008
    AZ Member #
    26471
    My Garage
    07 Tundra
    Location
    303 (CO)

    Bump

    Sent from my SM-G955U using Audizine mobile app

  4. #4
    Veteran Member Three Rings VR6Bomber's Avatar
    Join Date
    May 13 2009
    AZ Member #
    42466
    Location
    NJ

    That just looks like some surface rust probably from letting it sit in humidity without an oily coating to protect it.
    Spray and wipe with some clean some motor oil or wd-40 to see if it just dissolves.



    If that doesn't work the block is junk, I'll do you a favor and take it off your hands.
    Last edited by VR6Bomber; 05-01-2018 at 12:21 PM.



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