Help me please
 

Im needing a harmonic balancer bolt. I am teying to fix my car myself. After a certified macanic lost didnt tighten the bolt n. The. Pulley feel off

welcome to the forum. find a way to a dealership and purchase what you need there. or go on line cheaperhondaparts.com and purchase there.

Your balancer fell off while driving?

you might call that certified mechanic and tell him to come fix the car since he fixed it and it fell off. should be no charge.