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Cleaning Cast Aluminum?

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Old 01-09-2019, 07:03 PM
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HeadsU.P.
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Default Cleaning Cast Aluminum?

Picked up a cast aluminum tranny pan off Ebay. Has a couple fluid stains on the outside because it is used. Anybody know of a concoction that will clean that? Being that its cast, it has a very rough texture.
Old 01-09-2019, 07:35 PM
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Jeffs82c3
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Glass bead sandblasting.
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Old 01-09-2019, 07:44 PM
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Gold Dragon
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Mag cleaner, or magnesium cleaner. I think Eagle still makes it. Just make sure it doesn’t touch anything else. It will ruin a painted surface. But man it will it brighten the aluminum.Use a soft wire brush to get into the tight spots.

Ray
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Old 01-09-2019, 07:44 PM
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Mooser
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Lots of the "toilet bowl" cleaners will work on aluminum (boat guys using them on pontoons etc forever
One of the ones commonly recommended is called "the works" and another is "L.A.'s Totally Awesome" and is available at the dollar stores in the USA
Personally I use Flitz pre-cleaner
M
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Old 01-09-2019, 07:52 PM
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That makes sense. No body we see the pan but me. I just want to clean it because.
I got the pan for a song, about half price used.
Old 01-09-2019, 07:58 PM
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Just because nobody sees it doesn't mean it can't be nice
M
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Old 01-09-2019, 08:28 PM
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jackson
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cast alum is very porous and any caustic will tend to adhere and corrode if not neutralized/flushed well. If not, can darken aluminum.

Oxalic acid (powder) (DAP / Savogran Wood Bleach) mixed in water. This same as the old fashioned OTC radiator cleaners that're no longer available.

Neutralize with baking soda mixed in water then lots of rinse water.

-edit- deal or not, and no doubt plenty do, but I'd hesitate running a cast trans pan on a low-slung street driver.

Last edited by jackson; 01-09-2019 at 08:32 PM.
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Old 01-09-2019, 09:05 PM
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https://www.google.com/search?q=east...EW&pie=plaji-i

This stuff works excellent. But is expensive. Spray on, rinse off. Smells like the old green Metal Prep.

Steve O.
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Old 01-09-2019, 09:44 PM
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forman
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e-z off oven cleaner works well use a plastic brush to scrub ,, dont used a wire brush It will leave fragments of rubbed metal on the aluminum and Will rust ,, ask me how I know
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Old 01-10-2019, 03:06 AM
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KapsSA
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Bar keepers friend and a nylon bristle brush. What's left over works for many uses around the house!
I use to clean alternator cases and 78 aluminum power antennas.
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Old 01-10-2019, 08:37 AM
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Originally Posted by jackson
cast alum is very porous and any caustic will tend to adhere and corrode if not neutralized/flushed well. If not, can darken aluminum.

Oxalic acid (powder) (DAP / Savogran Wood Bleach) mixed in water. This same as the old fashioned OTC radiator cleaners that're no longer available.

Neutralize with baking soda mixed in water then lots of rinse water.

-edit- deal or not, and no doubt plenty do, but I'd hesitate running a cast trans pan on a low-slung street driver.
Yes, speedbumps will be my nightmare with a deep pan. However, the header collectors will be the lowest part to scrape first. I want some extra (cooling) volume of trans fluid with the 3,000 stall. Have a trans cooler out front also.

Update: Just measured.
For those who care, the 2 Qt extra capacity, deep tranny pan is 1+5/8" lower than stock on a TH350. So, not too bad for grd clearance.

Last edited by HeadsU.P.; 01-10-2019 at 12:29 PM.
Old 01-10-2019, 09:24 AM
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resdoggie
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Why not just buy a product specifically to clean aluminium such as Alumabrite or Aluma Kleen?
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Old 01-10-2019, 10:26 AM
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Scrrem
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I had good luck cleaning my rear axle case with aluminum wheel cleaner.
Rich
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Old 01-10-2019, 12:07 PM
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I use cast wheel cleaner. Makes it look new.
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