Lexus Repair: Crankshaft Pulley or Harmonic Balancer, crankshaft pulley, worst case scenario

Question
  I have a 94 Ls400 and the crankshaft pulley has a little wobble in it. What do I need to replace. Is the crankshaft pulley or is there a bearing that can be replaced.

Answer
HOW MUCH IS A LITTLE? AND ARE YOU HAVING A PROBLEM? OR DID YOU JUST
HAPPEN TO SEE IT WHEN THE ENGINE WAS RUNNING? I HAVE SEEN CRANKPULLEYS THAT DUE TEND TO "WOBBLE" VERY VERY SLIGHTLY WITH NO ADVERSE EFFECT. THE CRANKPULLEY IS DIVIDED INTO 2 SEPERATE PARTS.THE INNER SLEEVE THAT SLIDES ONTO THE END OF THE CRANKSHAFT AND THE OUTER DRIVEBELT BELT PULLEY.THE INNER SLEEVE IS CONNECTED TO THE OUTER PULLEY BY MEANS OF RUBBER.IF THIS RUBBER DETERIORATES, THE OUTER PULLEY SECTION AND THE INNER SLEEVE WILL SEPERATE.THERE ARE SEVERAL SYMPTOMS THAT MAY GO ALONG WITH THIS. 1. VIBRATION 2.LOSING THE DRIVE BELT. 3. WORST CASE SCENARIO THE CRANKPULLEY BOLT IS LOOSE OR HAS FALLEN OUT DUE TO IMPROPER TORQUE.IF THIS IS THE CASE THE CRANKSHAFT MAY BE DAMAGED.I WOULD SUGGEST HAVING THE PULLEY REMOVED AND INSPECTED.IF NO DAMAGE WAS DONE TO THE CRANK, THE PULLEY WOULD BE THE ONLY THING TO BE REPLACED. GOODLUCK