Sounds like a bunch o noisey lifters, my 16V makes lots of funky noises, I can't find anything wrong top or bottom, other than lifters that is. There are no guides, the chain is tensioned as the intake cam is tightened down into position. Later, Brian -- To subscribe or unsubscribe, send email to scirocco-L-request@privateI.com, with your request (subscribe, unsubscribe) in the BODY of the message.