Technical cleaning fire damaged aluminum ?

I picked up a 235 motor that came out of a car that was in a grass fire then sat for years. It has an Offy tri-carb intake and a Mallory dual point distributer on it that I'd like to save. They are both heavily oxidized but not brittle. Does anybody have any advice on what's the best way to save these parts ? I'm thinking soda blasting.

 

Take everything apart, and glass bead blast it. Soda blasting might work too, but I've never tried it. Looks like it got pretty warm, enough to melt the plastic stuff in the distributor, but not enough to mess with the aluminum itself.

 

If it's not melted or warped it should be okay, I think. As Squirrel mentioned, bead blasting might be the ticket.

 

Try a Brillo pad, water and a little elbow grease. They work great for cleaning oxidized aluminum.

 

Hand clean the machined surfaces and then mask them off with several layers of duct tape.

Then, bead blast the remaining surfaces.

 

There are many aluminum cleaning products out there and some have an acid that strips the corrosion and then gets neutralized. I just did a google search and tons of products turned up.

 

Vinagar.

 

Like squirrel said, glass beading is the best method for aluminum, that's what we use on aircraft parts. If it's not too deep you can try a red Scotch Brite pad first with a strong solvent like MEK (methyl ethyl keytone, wear gloves)

 

Vinagar.

 

Save yourself some grief - leave the Mallory where it is ....

 

I used easy off oven cleaner to clean up a fire damaged aluminum intake. HRP