FAQ for Vapor Blasting Engine Cases

Can you Vapor Blast an assembled engine or does it need to be disassembled?

I prefer it disassembled, then there is no concern of abrasive particles getting inside the motor.  To correctly do a motor rebuild, you would want to have it completely torn down to inspect and replace worn or broken parts.  I highly recommend all bearings and seals be replaced, regardless of their condition.

Will my cases be required to undergo extensive post Vapor Blast cleaning to remove abrasive particles ?

No, The process does not embed the particles in soft metal or tiny crevices, like dry blasting does.  We wash and dry parts several times before returning them.

Do ball bearings need to be removed ?

Yes, to eliminate any abrasive particles from getting trapped in bearing.  They should be replaced anyway.  Plain bearings and bronze bushings can remain in place, they will not be affected.

Will oil seals be damaged ?

No, but I recommend they be replaced , rubber has a limited life span, plus seals are inexpensive to buy.

Will Vapor Blast remove gasket material ?

Depends on its age and material of composition, I recommend you try to remove gaskets prior to being Vapor Blasted.

Won't the Vapor Blast leave abrasive particles inside threaded holes, requiring them to be cleaned with taps ?

No, Vapor Blast does not embed abrasives, like dry blasting does..

Threads will be cleaner after Vapor Blasting

Will I need to treat the surfaces after Vapor Blasting so they continue to look great ?

Not necessarily, but some customers apply a clear coating, paint or polish the cases, but most leave them "as is". 

If you have ever sand or bead blasted a part, it stains easily, and is difficult to remove that stain. The Vapor Blast process peens the surface creating a smooth, non-porous finish that will stay cleaner longer.

Examples of Vapor Blasted Engine Cases