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jrhone

Any tips on cleaning engine parts?

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I have a set of DCOE 40s that have sat on the shelf for a few years. I'd like to clean them up and make them look new...ideas? Tips? Thanks!

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Get a gallon of carb dip. Pour it into a container large enough to completely submerge the aluminum housing of the carb, once disassembled.

Make sure you soak all parts OVERNIGHT. Use flux brush / acid brush to clean off any residue. rince with water and blow dry with compressed air. Carb dip is amazing stuff.

If you want to preserve the dark patina, using a medium thick slurry of baking soda and water works well, for the stubborn parts.

Street value of these carbs: $12k. I wasn't taking any chances.

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I know I roll this photo out a lot, but the soda blaster worked great on these old Solex carbs. Soda works really well for oily grime, but not so good for corrosion.

Harbor Freight 15lb blaster with medium size soda.

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Same deal here, harbor frt soda blaster in my driveway last January. $5 for the soda, and my fingers were mostly thawed by the following Thursday ...

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I recommend soda blasting as well. Baking soda washes off easily which is very nice.

Another method I really like is boiling the carb in some water with a high concentration of lemon juice. Leaves a nice finish (slightly less shiny than soda blasting) and gets into the crevices very well.

You have to disassemble for either method in order to do it right. Replace the common wear items while you are in there (throttle shafts, etc). And if you know how, modify other things to improve performance (thin throttle shafts, taper throttle plates, etc)

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Another one for soda blasting here. I'm even using the cheap DIY method with a plastic container as a cabinet, small compressor and sucking up arm and hammer baking soda via venturi effect with a nylon hose and an air gun.

Nice results much better finish than sand blasting and ofc you don't want to sand blast a carburetor.

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