NoOneFlysAtMyClub

My Feedback: (32)

I have read here about the crock pot method of cleaning with anti-freeze to remove fuel stains.

Will this method remove oxidizing stains?

Engine is from Florida, salt air.

I thought glass bead blasting would do it, but I would
have to buy the cabinet. Anti-freeze is less $$$.

Thanks, Tony

ThumbSkull

My Feedback: (57)

If your corrosion is white (aluminum oxide which will collect dirt and look dark), it will not be removed with antifreeze. It will remove castor stains but caution is necessary. If there is any water mixed with the antifreeze, it will discolor the aluminum darker. If the engine is not fully submerged, a dark line will be made where the air/antifreeze meet.

I've fount thie antifreeze method to be not worth the risk to the engine.

I have taken up cleaning with ultrasonic in a bath of Branson MC-3 which works very well on all stains.
I still don't know of anything short of mechanical means that will remove the aluminum oxide.

NoOneFlysAtMyClub

My Feedback: (32)

I might try glass bead blasting, nothing to lose.

Edwin

My Feedback: (2)

It wont remove oxidation. But I use the antifreeze cleaning method a lot. I remove the carb and any other plastic, it wont do good in the antifreeze. My crockpot is on a timer so the longest it can run is 24 hours. Thats not enough time to darken the metal. Before the timers I forgot about a muffler for 3 days and it did turn a dark grey. But its just color, doesnt hurt anything. I also remove bearings when fresh out of the heat.
Edwin

NoOneFlysAtMyClub

My Feedback: (32)

I would think that the oxidation should only be on the surface. Blast until it is gone.
I will give it a try and see what happens.