Prechamber cleaning 617 turbo

[macdoe]

Hello, I am in the process of cleaning the prechambers and have used a wire brush to clean the crud off the tips. I have noticed that there is a bit of a burr around the little holes in the tips of the prechambers. I may have pressed a little bit too hard on the wire wheel and flattened out the burrs on some of them little holes.

I thought I read somewhere that the holes can be cleaned with a reamer of some type. I am thinking that I should maybe ream the holes out now that I have probably pushed some metal into the holes oriface by flattening out the burrs. Are those burrs suppossed to be there or would it be better to flatten them all out and ream the holes?

Also wondering if anyone has a trick to getting those old prechamber seal rings off the prechambers...4 out of 5 are stuck on the prechambers and I have tried heat and penetrating oil but that did not help.
Thanks