My $.02.. unless you have the means to wash the housing inside & out after sandblasting , don't do it , abrasive particles of the blast medium will penetrate seals , bearings , splines , in short , any opening.
dave
^^^ This.
I cannot think of a better example of not taking the time to do things the right way, the first time around. Take it apart, degrease it, blast it with whatever medium you prefer, then wash everything, meticulously. Scrub brushes, bottle brushes, screaming hot water and Tide laundry detergent. From there, your next step is to wash everything again, meticulously. Only this time, use scrub brushes, bottle brushes, screaming hot water and Tide laundry detergent. Once you get it as clean as you can get it, then wash it again, meticulously. And on this wash, use scrub brushes, bottle brushes, screaming hot water and Tide laundry detergent.
After the third wash, examine yourself in a mirror. Is any article of your clothing still dry? If so, then it is time to start over, using scrub brushes, bottle brushes, screaming hot water and Tide laundry detergent. Once you are certain you are more wet than the components you are washing, then you only need to repeat the process one more time. Don't be shy about it, just accept the fact that you will never be able to get it completely clean, and just keep scrubbing.
Mind, if you have the time to do it, then make sure you do it right. If you don't have the time to do it right, then put the project off until you do have the time. Cut the corners and it will always be niggling your mind, every time you drive the car. And, as all of us know, the abrasive media isn't going to cause a problem until you are all alone, in the middle of the night, 35 miles from the nearest town, and with no bars on your mobile phone. Then, and only then, will you be taught the lesson of cutting corners.
