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Dave Nova
Dave Nova, Buick Technician
Category: Buick
Satisfied Customers: 19452
Experience:  ASE Master Certification. GM World Class Certification
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How to replace tensioner pulley on 3.8l buick

This answer was rated:

how to replace tensioner pulley on 3.8l buick
What year is your Buick? Is your 3.8 supercharged or not?
Customer: replied 8 years ago.

1996 buick regal 3800 series 2, not supercharged. plastic pulley broke. have a replacement pulley. looks like it is attached with a single bolt. as i start to turn counterclockwise the tensioner gives but that bolt is on pretty tight. before I start pounding on it (and potentially do more damage) thought i would check and see if this is the way to get the bolt out. do i have to pull the whole tensioner first? do i have to turn clockwise? etc etc. thanks


In this instance the tensioner pulley has reverse threads on the attaching bolt. Turn the bolt clockwise for removal.
Customer: replied 8 years ago.

just a minute and i will give it a try... is there a torque value to tighten it?


35 ft lb.
Dave Nova and 4 other Buick Specialists are ready to help you
Customer: replied 8 years ago.

perfect... worked great,,, many thanks...... i will hit the accept button, but before i go,

any secrets on putting the belt back on?

Route belt around all pulleys and install onto smooth water pump pulley last.