I haven't replaced my green bung from when I removed it. Its still clean and dry in there though luckily..yeah basically get cyl no.1 to tdc, loosen off belt, turn cams to tdc (inner dots and outer mark on pulley) replace belt, tension up, and turn a few times to confirm. You may be a tooth out or somethin first time so check accurately. Then just a case of putting all back together... Hang on a minute,, are you sure you don't need to just turn the bottom over 1 more time?! As its 2:1.. We could be on a major novice error here!!!