Ultrasonic bath cleaning

[HarryB]

So I am thinking of sending my intake manifold to be ultrasonic bath cleaned. I actually plan on grinding casting flash off it, sandblasting, and then have it ultrasonic cleaned to get rid of any blast media residue as well as oil/carbon deposits on the inside.

I am also thinking of sending over my spare throttle body to be cleaned, but I am afraid that it will damage the shaft bearings and might remove the throttle plate coating. Any experiences with that? What about the IACV?