Richard,
I have run almost everything you can blast with through my cabinet, but have never tried the walnut shells. How are they for paint removal? Are they aggressive enough to blast through the thick stuff OMC and Merc use? I remember my Dad using them on delicate stuff like brass and carb bodies and such.
I run the compressor at 80 psi, and blast all parts of the motor, from 50’s OMC’s and Neptunes form the 30’s Have also done a Merc 20H popper. It works just fine, only issue I have ever head was dealing with the dust.
Ill have to try the wallnut sometime. Glass beads are getting quite expensive. I control the dust in my cabinet with an old vacuum hooked up to it. I made a filter box out of some 4" PVC pipe and use a double layer of red shop rag rubberbanded over the end for filter material. It keeps the dust down real well in the cabinet and does not suck up my media. The rags are cheap.
Thank everybody for the information. Now one more question. I was hand rubbing last night with rubbing compound. I don’t think I am going to get the mirror finish on the aluminum that I wanted. How do you get that almost chromed looking finish?
You need a very nice bench mounted buffer and lots of patience and practice. Polishing aluminum is a skill that takes time to learn. It’s best to practice on some old parts to get the hang of it. Look here, http://www.eastwood.com/autobody/buffing/buff-kits.html
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