1st time porting attempt
Be gentle,
Decideded to try porting. I got Jim Hand's book and made the 1.63, 1.66, 1.72 templates out of old valves. Got the die grinder out and went to town.
Turns out this is a little more difficult that I thought. I may not have the speed set right on the grinder. It seems it wants to dig some ruts. I created more of an Octagon bowl than a nice circular bowl.
I also chewed up the seat because I didn't realize that the chuck was hitting it.
I was trying to bias the grinding toward the outside wall, but that didn't leave much meat below the seat on that side.
Did I ruin it?
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