The Home Machinist!

Hello all,

looking for some advice. I've taken the cylinder cocks off my Mogul for cleaning. I believe these are from Super Scale.

In the picture below with the beat up screwdriver as a pointer, my question is. Is this grime build up or is it a seal of some sort. I took them apart and had them soaking in simple green for a few minutes and the started to wipe with a paper towel to remove the crud. It looks like it might be a seal that has deteriorated but i'm holding off until I seek your advice.

Grime or damaged seal?

Thanks for all the help and advice.

I think it is grime. under that should be a disk that the control steam pushes against to close the drain.

mine did not have any seals when i cleaned them after they loaded up from casting sand that was blown out the first time she was steamed, you are looking at "dirt",

Thank you all.

I'll keep cleaning.....