What is your question?
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What is your question?
My wife was driving the car (2003 E320 Benz) and the radio went out and the steering got tight, so she pulled off the road. When we looked under the hood the serpentine belt was off and frayed, and the pulley on the pulley tensioner was worn off. The center portion was worn out. First, what might have caused this. Second, about 45 days or 2 months before this, I had a water pump assembly installed. Could something have gone wrong with the water pump installation to cause the polley to tear up like this? We didn't hear any noise/squealing before the incident. Are there any warning signs when a pulley tensioner goes bad?
2 Replies
Yes there are warning signs to wear of tensioner. Squealing noise is one, the tensioner it self has a spring loaded center that can become loose and seperate from the part that bolts to the engine. There is also bearing that is mounted in the center of the pulley, that could seperate if not installed correct. Friction from a over heated bearing, could heat up plastic pulley enough to pull off the bearing. Your mechanic should have been able to find some signs of wear at only 45 days.
Torque, thanks for the insight. I thought the mechanic should've noticed something as well, but I've been told that sometimes, there is no warning signs. I just don't believe that.