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  • How clean do the cylinder head mating surfaces need to be?

    From James Harold Mcneil@1:226/18 to All on Fri Mar 24 23:53:05 2023
    I am replacing the head gasket on a 2002 Civic that I bought for $800. The machine shop rebuilt the head and I tried cleaning something black on the top of the block with blue Scotch-Bright pads and brake cleaner on shop towels.

    All it did was shred both.

    I tried a carbide scraper, but that immediately started scraping.

    I need to try one of the plastic razors I bought from Ace for $1.79.

    I want to put this thing together already! :)
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