pfcprc

'This sounds (without to much doubt) to be the alternator pulley problem which you will see in many areas of the forum. the noise is the belt tensioner jumping up and down, its in its early stages. Bet it will go away if you change the pulley and fit a new belt, both quite easy to do but you will need a specal tool to remove the pulley from the alternator. Sealy do one i think its call the SX400 - remove the air box and other bits of engine trim its a lot easyer to get to the relevant bits