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Join Date: Dec 2013
Location: Minneapolis, MN
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can you suggest a degreaser safe for magnesium ?

Looking for something to use on my 2.2T rebuild, preferably something I don't need to babysit. I don't want to worry about leaving it on the case too long and ruining it. What do you guys use?
Old 09-28-2017, 05:02 AM
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I'm doing a 2.2 right now.
I soak it in safety kleen, dry it, power wash it then spray it with sams club degreaser, let it set for a few minutes and power wash it again.
Magnesium is naturally dark.
After building, there is a spray can of sealant that comes from a boat store that sprayed on and seals the magnesium surface.
Bruce
Old 09-28-2017, 08:14 AM
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Originally Posted by Flat6pac View Post
Magnesium is naturally dark.
Hi Bruce,

Actually, Mg is a shiny silvery metal in its natural state.

Since it has two valance electrons, its highly reactive and bonds with oxygen to oxidize and its the magnesium oxide that gives it its dark color after being exposed to air.

This is why it needs to always be coated to prevent terminal corrosion.
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Old 09-28-2017, 09:00 AM
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I don't even bother with degreasing anymore. I run the case halves over to the machine shop, have them hot tank it (50 bucks) and then have them soda blast it (150). It comes out looking like virgin metal.

For mag, you can then spray the outside with clearcoat or whatever to protect it.

This process alone has saved me tons of time with case cleaning. No more toothbrushes, no more hours spent fiddling and cleaning crevices. Get the case soda blasted and start building it the moment it comes back.
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Old 09-28-2017, 09:43 AM
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Who would provide the service you get from your machine shop and the soda blast as a business
Say in Chicago.....
Would like to find this type of service
Thanks
Frank
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Old 09-28-2017, 11:11 AM
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Catorce
Who would provide the service you get from your machine shop and the soda blast as a business
Say in Chicago.....
Would like to find this type of service
Thanks
Frank

Far as I know any automotive machine shop does this in house. They use Soda because it doesn't matter if it all washes out or not - it is inert and dissolves eventually so totally safe for motors.
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Old 09-28-2017, 03:46 PM
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Simple green
Old 09-28-2017, 09:22 PM
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Simple green
Careful with that stuff as well as other cleaners with advisory labels regarding aluminum. Long soak periods may affect the appearance of the material.

Sherwood
Old 09-29-2017, 12:14 AM
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LA totally awesome, if you want to put it in long term dilute it. I run about 2:1 one part water. You have to wash it with soap and water when done. It will get it clean enough to use, but it won't give you a shiny case.
Super cheap.
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Old 09-30-2017, 12:28 PM
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Careful with that stuff as well as other cleaners with advisory labels regarding aluminum. Long soak periods may affect the appearance of the material.

Sherwood
There is a simple green for aviation use that is alloy safe.
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Old 09-30-2017, 08:44 PM
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There is a simple green for aviation use that is alloy safe.
Yep that is all I use now....safe for most all types of metals. And you can find it in gallon jugs on Amazon.

Simple Green Extreme Aircraft Precision Cleaner | Industrial
Old 10-04-2017, 08:20 PM
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Quote:
Originally Posted by Steve@Rennsport View Post
Hi Bruce,

Actually, Mg is a shiny silvery metal in its natural state.

Since it has two valance electrons, its highly reactive and bonds with oxygen to oxidize and its the magnesium oxide that gives it its dark color after being exposed to air.

This is why it needs to always be coated to prevent terminal corrosion.

What would be a good coating product on a freshly cleaned magnesium engine case?

Thanks,
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Old 10-05-2017, 01:28 PM
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