Starting from the middle bolts and work outwards 25NM +60 degrees +60 degrees +60degrees (alternatively 25nm +90degrees + 90 degrees) often easier to work out without having a angle gauge. Don't forget to replace the bolts, they are torque bolts and they can snap when reused. Spray the with wd40 before fitting them this helps when tightening them. Best of luck...
Keith.H
February 2007