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Thread: Cleaning out an radiator using TSP cleaner

  1. #1
    Join Date
    Jan 2008
    Location
    Grants Pass, Oregon
    Posts
    35

    Wink Cleaning out an radiator using TSP cleaner

    Hello, I'm busy working on my F head engine and noticed my radiator has calcium like deposits on the cores and some one sugested pouring TSP cleaner in and run it a few minutes and flush. Does anybody know of this and if so, how much do I mix to make it work? I don't want to over mix and ruin a $150 to $300 radiator. Any hints or sugestions would be appreciated.

  2. #2
    Join Date
    Aug 2003
    Posts
    2,361

    Default Re: Cleaning out an radiator using TSP cleaner

    You can buy radiator flush kits with the appropriate chemical cleaners.

  3. #3
    Join Date
    Nov 2010
    Location
    Quakertown, PA
    Posts
    788

    Default Re: Cleaning out an radiator using TSP cleaner

    I would be leary of using any acid in a radiator, especially an old one, because you don't know what kind of chemical reaction it may cause with the metals. I believe these radiators have brass and copper in them. Plus you don't know what kind of reaction the latent chemicals would have with the antifreeze once you fill it back up. You're better off sticking with commercial radiator cleaning products from reputable companies like Prestone.

    Now that said, I once knew an old man who swore by Coca Cola for cleaning radiators and battery terminals. I know it works on battery terminals but I never tried it in a radiator.
    _____________________________________________
    Chris
    '59 CJ5 fully stock
    http://59willys.blog.com/

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