I'm looking to sandblast my Weber carb body and upper cover and wanted some advice. I've read that you have to make sure to use a mild abrasive that won't damage the carb, but I'm looking for something more specific. If I have it done, what do I look for to see that it'll work out right?

 

when i rebuild nikki carbs, i just take it all down to the bare pieces. then use my home sandblaster with regular play sand. works beautifully. no dirt, grime, nothing. very clean look. before re-assembly tho, you must rinse each piece very well.

 

yeah if your only gonna sandblast the carb body and cover you dont got anything to worry about.

Sand blasting the inside would create problems

 

Walnut shells or glass beads would be the alternate medias to sand. Duct tape is best for masking areas off that you don't want touched.

 

i've used that carb cleaner u get in a can with the baslet in it. let the carb soak overnight, it works really well

 

Yup. It really depends on the finish you want. Minimal harm and a like new finish would be best achieved using baking soda. You will not even remove the part number on the carb. Walnut shells work but are very slow. Glass bead will get the same result or will etch the surface making it rougher depending on the grade of the bead. Alox will make for a rough finish, great if you plan to paint or powdercoat it. Sand is for beaches, not for blasting.

Be ABSOULTELY sure you get ALL of the media out of the carb. Its next to impossible unless you completely strip it so mask it really well. Baking soda is safest here as it shouldnt hurt the engine it a little is left inside, and it wont clog anything as it will dissolve.


Do NOT use sand in a cabinet blaster EVER!!!!!!!!!!!!!!!!!!!! Its ok outside in an open well vented area and with the proper protection. But silicosis is serious ****.

 

The NAPA stuff is the best, but its not enough most of the time. Its also the wickedest stuff known to man, or at least in the top 10. Thats setp one in our process, primarily for degreasing. Its not going to remove corrosion or stains in the aluminum. You should see some of the carbs we've gotten.