trick for Removing gaskets from alumium parts - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 18 (permalink) Old 05-16-2014, 11:39 PM Thread Starter
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trick for Removing gaskets from alumium parts

My engine building experience is pretty old when iron and steel was all that engines used where gaskets were. On iron blocks I used a sharp wood chisel and sand paper to remove the gaskets but with this aluminum block I'm afraid of deeply nicking it so I've just been using a sharp putty knife which takes forever.

Any of you more experienced mechanics got any tips for getting the old gaskets off?

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post #2 of 18 (permalink) Old 05-17-2014, 03:40 AM
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I cheat when it comes to aluminum... I use a die grinder with a flapper wheel and almost 0 pressure... for the less stuborn stuff I still use my Die Grinder, but use a Rubber Eraser Bit... some times spraying the aluminum down with wd-40 a few times and letting it soak in can do the trick, fallowed by a real light sanding to remove any gum left behind... Chisels and "Gasket Scrapers" are my last resort on aluminum because they can gouge the part very badly.
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post #3 of 18 (permalink) Old 05-17-2014, 06:56 PM Thread Starter
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SV, I think I'll try the flapper wheel but with a Dremel and see how that goes.

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post #4 of 18 (permalink) Old 05-17-2014, 06:57 PM
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I honestly just use some pry tools i have and be very careful. I scrape the gasket down, and once it's almost to the aluminum I'll spray some carb cleaner on it to make it brittle, helps pop it off of the aluminium.

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post #5 of 18 (permalink) Old 05-17-2014, 09:08 PM
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I honestly just use some pry tools i have and be very careful. I scrape the gasket down, and once it's almost to the aluminum I'll spray some carb cleaner on it to make it brittle, helps pop it off of the aluminium.
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post #6 of 18 (permalink) Old 05-18-2014, 12:14 AM
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It aint legal no more....but if ya spray it with Freon, it'll freeze it, and any sealant, and will crumble off with a plastic winshield scraper.....I dunno, but dry ice might work instead.....aluminum sucks....

Liquid oxygen or nitogen would work, but try gettin some, lol....



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post #7 of 18 (permalink) Old 05-18-2014, 12:51 PM Thread Starter
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I honestly just use some pry tools i have and be very careful. I scrape the gasket down, and once it's almost to the aluminum I'll spray some carb cleaner on it to make it brittle, helps pop it off of the aluminium.
Resorted to the wood chisel last night with a little help from a 120 grit small flapper wheel which worked ok but still time consuming. I'll add a little carb cleaner to the mix tonight.

I've got a can of Freon (saved from years ago) but don't have the ability to shoot it in short squirts.

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post #8 of 18 (permalink) Old 05-19-2014, 12:37 AM
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Quote:
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It aint legal no more....but if ya spray it with Freon, it'll freeze it, and any sealant, and will crumble off with a plastic winshield scraper.....I dunno, but dry ice might work instead.....aluminum sucks....

Liquid oxygen or nitogen would work, but try gettin some, lol....
I wonder if that canned air / computer duster stuff will work to the same effect? Turn the can upside down, squeeze the trigger and the liquid stuff comes out and flash freezes pretty quickly.

......I'd rather wake up in the middle of nowhere then in any city on earth.

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post #9 of 18 (permalink) Old 05-19-2014, 07:54 AM
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I use a razor blade and almost no pressure to peel off as much as I can. Any residual material I take some brake cleaner and a scotch brite pad and it scrubs right off. No scratches or anything.

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post #10 of 18 (permalink) Old 05-19-2014, 10:15 AM
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a scotch brite pad
I will not allow those anywhere near the inside of an engine.
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