I work at a sailing class as an instructor, and we also do our own maintainence. We have to pull the head off of our Merc 9.9 (early 90's model). I need to know the recommended torque for the head bolts and the tightening sequence (for the reassembly). I'm sorry that I can't be more precise about the model we have, but it was donated and the manual is long gone.<br /><br />Thank you.