I noticed slight wobble and noise during idle on 2000 Accord 4cyl.

I torqued bolt down to see if bolt was being loose, but it wasn't.

Anyone have good experience with aftermarket pulley or should I get new from Honda (not sure how much with employee discount).

 

Stick with OEM.

 

^^ this .. Harmonic Dampeners are extremely important to longevity of the motor .. i would stick with oem

 

Okay, I replaced with OE crankshaft pulley. but it still have slight wobble to it, better than before but still there (noise is gone too). is crank shaft itself is bad?

note: torqued down to 181ft lbs.

 

Did you buy a new key for the crank ?

 

no

it looked fine (no deform or play).

I hope nothing wrong with crank shaft, it's not worth fixing it then.

 

also wobble is side to side (only at idle), no up and down play.

I may try to replace key also, since it's under $10.

 

some if it may be due to machining, is the wobble the exact same as before?

 

no.

less side to side wobble, also weird noise is gone during idle too.

I am gonna take it apart and inspect the key closely.

 

Well you're heading in the right direction. Make sure your timing belt pulley behind the harmonic is on correctly and not having issues either