Wow, glad I asked and thanks for that info. You are the first to mention that point. I'm replacing the seal with crank in block, so that means no polishing and I need a rope, right?
Most of the times thoughs grooves are ruff and will tear up a rubber seal, look at them real close and see if you can feel them with your finger, if they are smooth enough you might get away with it but if they are ruff NOT.
