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Sandblasting engine cases


SplitSide

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Isn't soda blasting or walnut a better option for cases?

I used a combination of walnut and sand in the blaster I was using. I went to harbor freight and picked up a few things. The sand did almost nothing. The walnut shells worked well. I will try glass bead and steel shot one day too
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I use glass media and I hit everything , pull all bearings seals , after blasting I run tap through every hole, wash with hose, then I go inside to my wife's sink use hot water and dawn , scrub all mating surfaces and anything else you feel needs it. Blow it dry , ascetone mating surfaces with white terry cloth and you'll know rite away if it's clean enouph

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Agree with above, I would select a less harsh media.  Soda, Walnut, or dry ice.  Sand will actually open up pores in the Aluminum and it will stain rather easy.  Glass seals the pores but still is a little aggressive IMO. 

 

You may also consider clear coating the cases if you sand blast to seal them. 

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