I just finished replacing the valve seals. There was absolutely zero lateral play in the valves and I only busted three knuckles getting the old seals out. I did notice the locking screw was iffy on the intake valve for cylinder 3 so I replaced that while I was in there.

She started easy as usual with no smoke at idle this time, and almost no smoke in under the valve cover, which is a first for me. Revving the engine produced as much smoke as it had at idle before replacing the seals.

Given how the valve guides had no play, I'm thinking a leak down test would be pointless. Wouldn't the cylinder problem have to be a piston?

Also, at one point I had a lot of slack in the timing chain on the fuel pump side. It's not there when the cam shaft is in certain positions and I have no idea if that's normal. It sure doesn't seem right to me.