The reason for the two timing cover bolts coming in from the pan side dates back to when people had to adjust the main bearing clearance with shims. It was easier to get the front main cap off if the lower timing cover bolts were removed that way. Now it's seldom, if ever that the main cap comes off except during a full overhaul. Either way, the bolts don't get removed very often. Since the timing is done with gears instead of a chain, there's no reason to make the timing cover easier to remove. Just leave it like it was designed, with the bolts from the inside.
A little silicone seal goes a long way- - - -don't overdo it! Maybe a 1/16" wide bead right down the center of the gasket is OK, if you use it at all. I don't, except for a dab at the corners where the end gasket meets the side pieces. Check that rod bearing for imbedded steel- - - -a shallow gouge in the soft bearing material won't be much of a problem, but a loose piece of hard stuff will cause major grief!
Jerry
