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Cleaning Surface Rust On Transmission Parts

Discussion in 'Early CJ5 and CJ6 Tech' started by tripilio, Sep 5, 2019.

  1. Sep 5, 2019
    tripilio

    tripilio Proud American!

    Miami
    Joined:
    Aug 12, 2018
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    347
    Can I sandblast my take-out T90 parts to remove surface rust and dirt? Would that affect the surface hardening? It is easier and faster than using the wire wheel but I want to hear opinions/experiences.
    Thanks!
     
  2. Sep 5, 2019
    TIm E

    TIm E Member Sponsor 2019 Sponsor

    NW Arkansas
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    Mar 2, 2017
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    I wouldn't recommend sandblasting any wear or mating surface (gear teeth, cluster pins, etc.). It will create a rough surface that will wear faster and shed metal into the oil. If it was really bad, lightly glass beading may be less harmful, but you would also want to clean everything very well as any blasting media in the oil is not gonna be good. A thorough parts washing and scrubbing followed by wire wheeling is your best bet.
     
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  3. Sep 5, 2019
    tripilio

    tripilio Proud American!

    Miami
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    Thanks! I wasn't sure sandblasting was a good idea but, what do I know?
     
  4. Sep 5, 2019
    47v6

    47v6 junk wrecker! Sponsor

    Washington DC.
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    wire brush or soft wire wheel on a drill. Phosphoric acid will take off some rust but don't let it soak for very long. makes soap of some sort...
     
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  5. Sep 5, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
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    Glass beading used to be popular since it isn't abrasive like sand is.
     
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  6. Sep 5, 2019
    Keys5a

    Keys5a Sponsor Sponsor

    Florida Keys
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    Worn out glass beads. I have dusty flour-like consistency that works well on light rust. I've been up in West Palm for the past few weeks with my Mom. I took her down to my place for the storm, but I'm back north again.
    How much of a hurry are you in? I could stop by and pick them up on my way down, and drop them on the return trip., but it may be a week or more.
    -Donny
     
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  7. Sep 5, 2019
    dane71

    dane71 Member 2019 Sponsor

    USA
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    May 11, 2017
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    Degrease everything then soak it in evapo-rust. It won't remove anything but the rust and all you have to do is let it soak for a day (or a few if it's bad)
     
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  8. Sep 6, 2019
    tripilio

    tripilio Proud American!

    Miami
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    Thanks, Donny! I still need to buy the cluster gear for the T90 in order to have all the parts to rebuild my transmission. I don't want to bother you on minor stuff I can solve with evapo-rust as you suggested. I will save that card for times when I really need a hand!:D
     
  9. Sep 7, 2019
    Mcruff

    Mcruff Earlycj5 Machinist Sponsor

    Albertville, AL
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    Sep 22, 2002
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    Sandblasting using fine glass bead works great, i do this at work on high precision parts and have been doing it for 30 years. At home I generally use this method, it also works great.

    Rust removal by electrolysis
     
  10. Sep 7, 2019
    WestCoastPat

    WestCoastPat Member

    Joined:
    Nov 1, 2015
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    Interesting. What to do with the "used" water and rust and ?????
     

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