Remember that the cam goes round once to the crank's twice. If you do the 'pencil' test and the cam looks 180 degrees out, just wind the crank round again. -- Phil Payne, Isham Research 21 Bramwell Court, Sheffield S3 7PR http://www.isham-research.freeserve.co.uk Phone/SMS: +44 7785 302803 Fax: +44 7785 309674