The actual mechanics seem not too difficult. Crank tdc fireing stroke, remove spark plug cyl 1 for this. I believe there are locating holes for pins which must line up before and after.Tensioner and waterpump seem no to difficult. Cambelt locked with tool. Slacken Cam pulley.. Using tool..ok so far. I wonder if there are any line up marks/ pin to help with bottom pulley (for belt) which becomes a free agent after taking off the mega tight (by the sound of it) bolt. Any person brave enought to assist.