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  1. #1
    OpelAus Forum Regular
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    so i am trying to clean the top of my pistons before i put my head back on as they have a lot of crap on them from 10k kms of driving with ****ed valve stem seals.

    i have been using Throttle body cleaner and a dishwashing brush (Plastic bristles) and rags. i have been scrubbing for ages and gone through a whole can of throttle body cleaner so far.

    I am worried about using abrasive as i dont want to damage the piston tops so i have been avoiding them, does anyone have any recommendations for what i can use to speed the process up?

    Click here to enlarge

    This is before I started

    piston 4.jpg

    this is after several hours of scrubbing and soaking piston top overnight....
    Click here to enlarge Warning: This is an Old Thread
    This discussion is older than 120 days. information contained in it may no longer be current . Please think of the children before resurrecting this ancient thread!
    Last edited by Sammich; 19th January 2015 at 04:07 PM.

  2. #2
    OpelAus King Dingaling guy 27's Avatar
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    Just clean off what you can. You'll end up getting shit stuck between pistons and liners and will damage the bore.
    There are ways to clean them within but will need compressed air to blow the debris away straight away.
    04 Astra Sri - Silver - Full red leather interior - mk4 888 wheels - Star light roof lining - lowered - ice - exhaust - vxr brakes - quite a few other things.
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  3. #3
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    i have been using a vac, rather than compressed air, but it seems to be picking up the debris.

  4. #4
    OpelAus Enthusiast DRMAT's Avatar
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    Leave it on... crap = high compression! Click here to enlarge

  5. #5
    OpelAus Enthusiast mickos's Avatar
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    Tune it on E85 that will keep the gizzards clean
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  6. #6
    OpelAus Forum Regular
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    @mickos I was thing methonol injection, for that steam cleaned look

  7. #7
    OpelAus Enthusiast SilentShout's Avatar
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    Could get some flat top pistons in there Click here to enlarge new and shiny, and increased comp ratio. Best of all worlds :P
    Holden Barina XC SRI
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  8. #8
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    ....increased comp ratio is the last thing I want in a turbo motor... Will see how the engine goes with the power, probably have to do the bottom end at some point in the future. Will go forged pistons and rods then.

  9. #9
    OpelAus Enthusiast SilentShout's Avatar
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    Didnt realise it was a bososted engine. No idea how to clean these without taking the pistons out so crap doesnt soil the rings.
    Holden Barina XC SRI
    16.23 Second 1/4 Mile, No boost..... Yet
    "-I'd rather loose by a mile because I built my own car, than win by an inch cause someone else built it for me. Your car, is your story, so don't let someone else write the book." ~Moog

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