It's one thing to know how to do it, but you need to have a person with all the tools. The engine mounts need to be removed and the engine jacked up and held safely. You need a torque driver that can put over 400 lbs for the crankshaft pulley bolt (420 lbs to be exact), set of feeler gauges for the valve adjustment, and special tool from Honda to hold the auto tensioner piston down while you reinstall it and hook the pulley springs to it. Plus, the driver's side wheel and part of the suspension need to be dissasembled to get to it all. Now you know why dealers will charge 650.00 for this job.