Topic: I think I hosed my engine by bead blasting it

[kghost]

I routinely glass bead engine parts.

Course they are disassembled.

I've found a quality set of bore brushes helps get the glass bead out.

Screw holes are the worst.

It all eventually comes out...takes a bit of cleaning tho.

[lone*X]

I have used walnut shell media in the past and it does a great job without leaving the sharp grit.  But you still had to clean the workpiece well after the blasting.  Recently saw a demonstration where the media used on aluminum castings in a foundry was soda, plain baking soda.  Worked like a charm and hot water cleanup actually dissolves the remaining media.  Of course I have no idea where you get baking soda in bulk.  Would be interesting if anyone here has any personnel experience with soda as a blasting media.

[fuzzybutt]

i understand that blasting with dry ice is a great way to go. safe as safe can be. i watched a video one day of them dry ice blasting a very very old book, it took the grunge and mildew off of the cover leaving a brand new looking book, it diesnt attack the base material at all.

http://en.wikipedia.org/wiki/Dry_ice_blasting

[chrislib]

i understand that blasting with dry ice is a great way to go. safe as safe can be. i watched a video one day of them dry ice blasting a very very old book, it took the grunge and mildew off of the cover leaving a brand new looking book, it diesnt attack the base material at all.

http://en.wikipedia.org/wiki/Dry_ice_blasting

I saw the dry ice blasting on an episode of "Holmes on Homes" (unfortunately that show has been replaced by the "green" channel), they blasted mold and mildew from the attic of a marijuana grow house, it looked pretty neat.

[Tim.]

+1 for baking soda.  I think you can get big sacks of it at Costco.

[MJL]

i understand that blasting with dry ice is a great way to go. safe as safe can be. i watched a video one day of them dry ice blasting a very very old book, it took the grunge and mildew off of the cover leaving a brand new looking book, it diesnt attack the base material at all.

http://en.wikipedia.org/wiki/Dry_ice_blasting

I work in a tire factory and they have a truck that goes around dry ice blasting molds while they are still in the presses.



I would get the spare motor running and swap it in so you could still ride, then spend the summer cleaning cleaning cleaning the good motor.

[lone*X]

Found this link.  Cool stuff!  non-flammable, non-toxic, and anti-rust treatment all in one.

http://www.surfacetekinc.com/soda_blasting.htm