you,ll probably bend the valves at 1 tooth advance james :doh:, if you take the fat washer off and but the bolt back in (so that you dont disturb the timing), and remove the double cam bearing, the pin will drift out a p of p, then file a flat and tap it back in, that bolt has to be damn tight tho
, if the sprocket slips or shears the dowel, it,ll wreck the engine eh 