Valve guides and vapour blast cleaning...

[Oz350Four]

I'm about ready to send my cases and sundry covers away for vapour blast cleaning and I'm wondering if I need to remove the valve guides or not..

I'm of the belief that vapour blasting is not abrasive (like sand, bead or soda blasting) and therefore wouldn't damage them..??
More than happy too be schooled on this one...

 

[irk miller]

Valve guides will be fine. Vaport blast is (glass) bead blasting with water. I usually do a quick hand grind when I install valves, though.

 

[cxman]

lap or grind?

 

[jays100]

I know this is old, but he lapped each valves to its seat.