Hi there, i have a 2004 2.0 turbo signum with a z20net engine fitted. Problem I have is that the timing chain has done a number on the car. Does anyone know where I can get a cam alignment tool to set up the cam timing after I have replaced the chains and guides etc. The cams on this engine are not indexed in anyway to aid fitting the cam sprockets in the correct position or is it a vauxhall only special tool thats required? If so will the stealers sell it, or is there someone else who does this tool. I know that it replaces one of the cam caps and holds the cam but just cant find one anywhere. Thanks in advance Scottie.