if the valve guides aren't worn out and valves and seats arn't worn or pitted to bad you can lap them and they will work fine, the way i do them is clean them up with wire brush on the bench grinder,the head with a wire brush on a drill, be sure to keep each valve in it's same position,quick way to lap them is to chuck the valve to be lapped in a 3/8 drill about 1/4 inch above the guide so you can move it in an out while it spins, apply lapping to valve contact surface run drill about half speed while moving the valve in and out with light contact pressure until you clean up the contact surfaces they won't shine like the been ground but the surfaces are lapped to match each other, be sure to lube valve stems before you attach the drill.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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