How to tighten new serpertine belt

Tiny
JOEYBOYVIRGO
  • MEMBER
  • 1990 MERCEDES BENZ 300CE
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 116,000 MILES
Just replaced a new serpentine belt to my 1990 mercedes benz 300CE, but I don't know the right way how to tighten the belt.
Thanks for your help
Sunday, September 28th, 2014 AT 9:12 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,743 POSTS
Belt tension is set by a pulley on a spring-loaded arm. You had to pull on it to release the tension on the old belt. If it's not taking up the tension, you have the wrong belt, it's routed incorrectly, or the tensioner is rusted in the released position. The third possibility is the most common one.
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Sunday, September 28th, 2014 AT 11:19 PM

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