Corsa-B.uk - Vauxhall, Opel and Holden Corsa B Owners Club

hi cuming back from me dads my engine was tapping so bad it ended up getting loader then me sterio. ive stripped the rocker cover off and im woundering, can i take the cams out without messing about with timing? or can i leave the sprocketts on and still remove the cams?
thanks billy