Okay, it's now rookie time here. I have the head off and was cleaning up the valves and wanted to lap them. When I pulled them the seats and valves where they contact each other are very, (like chrome) shiney...

So I take number one intake and start lapping and the surface turns grey, okay I think this is normal...?

I need a reality check here. Are the valves and seats in a 616.916 motor chromed such that I should not lap them or is this normal that they look like they are chromed and I should continue on with the balance of the valves?

In other words, HELP!

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'99 S420 - Mommies
'72 280SE 4.5 - looking to breathe life into it
'84 300SD Grey - Sold
'85 300SD Silver - Sold
'78 Ski Nautique