thnx ill check into it

take it back to the shop that did the work. tell them it didn't do it before.

If your harmonic balancer were failing you shouldn't hear the clattering past 3000 rpms IMO. A "clatter" noise IS the sound a bad harmonic balancer makes, but usually it'* only audible at idle, and goes away as soon as the rpms hit 2000. But I don't know of one that can be heard while driving around @ 3000rpms. :? Not a bad idea to check though. If it happened right after you got it back from the shop I'd suspect they did something wrong.

Harmonic balancers (bad ones, that is), go silent almost instantly on accelleration. Pet'* right.

Just found out my uncle gave it to the shop right before he gave it to me and he said the harmonic balancer was the reason he brought it there. The car was supposedly fixed, 2 days later he gave the car to me. i drove it for one day and barely got home because the timing chain was screwed up. Now a day after that, this happens with the clattering. My incle stopped by and he said this clattering is more suddle and the clattering he had was at idle like you guys said.

So you're saying the harmonic balancer was already replaced, which would mean the sound is still something else. You are hearing the noise at 3000 rpms and it is subtle? I think we're still at square one here. Did you take it back to the shop?

will tomorrow

Good luck. Hope they can figure it out and if it'* something they did wrong hopefully they'll be good about it.