HARMONIC BALANCER on 1999 Oldsmobile Aurora

THE HARMONIC BALANCER HAS A WOBBLE WHJEN IT IS RUNNING BUT IT SEEMS TO BE TIGHT. WHY DOES IT LOOK TO BE OUT OF BALANCE?

by in Morgantown, WV on June 20, 2011
1 answer
ANSWER by on June 20, 2011
The balancer is comprised of the metal pulley and a heavy rubber dampener that smooths out inherent engine vibration at the crankshaft. It will be bolted down securely, but if the rubber starts to separate from the pulley - then it will wobble and vibrate badly. A diagnosis is very much in order, as soon possible. This pulley can break off.