cam chain positioning

In my manual it states nothing about putting the cam / chain back on and where it should sit. How do I know what position the cam on top should be when it is at TDC for 1-4 or 2-3 ?? I the only mark on the cam is a "T" and that is facing up when it is at TDC for 2-3. Anyone have any ideas ? (Johnny what kind of beer do you like ?

http://img273.echo.cx/my.php?image=dsc029688ei.jpg

http://img273.echo.cx/my.php?image=dsc029699bt.jpg

http://img273.echo.cx/my.php?image=dsc029656fc.jpg



Thanks

J "not that" D