Valve lapping

[1930artdeco]

OK, I searched but could not find an answer to my questions. I am beginning to lap the valves and am using some lapping compound that the machine shop gave me-Permatex. So I started on #1 ex as a test. I have a ZIM hand crank lapper but it would not even budge the valve-even after I put oil on the stem and worked it around by hand. So, I used the long stem and did it by hand-worked decently (I just bought the wood stick version). The guides and springs are in aaand so are the keepers-my knuckle head exuberance. So I will take them out one by one and lap them. My questions are:


1) I know I am looking for a thin stripe around the middle of the valve that is nice and shiny. But after a few rotations I looked and it look really rough with the shiny parts at the top and bottom of the valve. I assume this will go away as they seat together?


2) How long should this take per valve? I don't want to just keep going and ruin a valve and seat.


3) Best way to get the compound off the seat and valve?


Thanks,


Mike