If you do buy Media Blasting Crushed walnut shells from Harbor Fright (I'm sure there are other sources), then stick with the small stuff 25 grit v.s. the very course 12 grit.
Send back the 12 grit (course stuff) it will plug whatever you put it into unless you have 1" hose and fittings.
Ask me how I know?:sad: Been there done that one of the most miserable and frustrating things I have done on this motorcycle.
The walnut shells are expensive and can be reused as they will go through the blaster very fast. My brothers Harbor Freight blaster was the big one that would hold just over 3 boxes of the crushed shells. Set up a little booth with tarps so that you can catch the shells, sift them through a piece of window screen (I screwed some boards to either side to hold apart the screen on top of the box.
If you use the coarse stuff you will find that it immediately jams inside of the fittings (sorry been they done that) and you have to get rid of every bit of it. I have been stood there shacking the HF sand blaster over my head like a giant pepper Shaker trying to get all of the residuals out from a collar that was holding the last bit in. If you don't get it all out it will plug and you will have to empty the whole thing again.
REPEAT ONLY USE THE FINE GRAIN THE COARSE WILL PLUG UP EVEN ON THE CHEAP HANDHELD UNIT. Ask me how I know
I did my engine with the walnut shells just make sure all of the ports are plugged taped off. I would strongly recommend to NOT SAND BLAST your engine as the dust is finer that cigarette smoke and very abrasive and will probably ruin your motor is short order if any gets in.
The fine 24 grit abrasive is not very abrasive and will clean but will not remove all paint but it also doesn't do any damage.
I plan on sand blasting my GS1100ED frame and painting with Por-15 , this will pit the aluminum so I don't recommend unless you plan on painting.
A thread I started a while back and need to update.
http://www.thegsresources.com/_forum...d.php?t=120529
Good Luck
Posplayr
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