Try this cheap gasket scraper on your project. It is made from soft copper tubing (the stuff on a roll). I used 1/2 inch on this one but you can use whatever size suits your needs. It is softer than the aluminum cases so it wont gouge. Just pick your size flatten one end, sharpen with a file and start scraping. On RTV type gaskets spray with carb cleaner, then wire brush it. Hope this makes work easier.[ATTACH]

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