1991 Buick Century Serpentine Belt Installation Instruction

Tiny
RPYTOSKY
  • MEMBER
  • 1991 BUICK CENTURY
Engine Mechanical problem
1991 Buick Century 6 cyl Two Wheel Drive Automatic

Do you have any instructions you can send me on how to remove and replace the serpentine belt
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Tuesday, June 2nd, 2009 AT 12:22 PM

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Tiny
JASONRAY
  • MEMBER
Which engine does it have? 3.1L or 3.3L

On some models, with particular engines, instructions tell you to remove the motor mount. You don't have to. You WILL need to jack the car up on the passenger side and remove the RF wheel. If it's the particular engine that's in question, there will be a long arm from the motor mount that's got a bolt through it, then through a 3 or 4 inch spacer, and bolten into the block. You can remove that bolt and force the spacer. On this engine, the belt goes around the spacer. The 'leg' of the motor mount is actually 'through' the belt, so to speak. Once you've gotten that far, and before you even start to remove the belt, draw a picture for yourself of the routing. Then, you'll have to release the tensioner. Either by using a ratchet/socket combination or it may just take a 3/8 ratchet. Release the tension carefully and remove the belt off of a pulley that you can reach with the other hand. Once you've gotten it off of ONE pulley, you can release the tensioner. Release it easily, don't let it just snap back because that can damage the tensioner. Remove the belt. Now, using the picture you drew before you started, install the new belt. Make sure it's seated completely in all the pulleys. Crank the tensioner just like you did to remove the old belt to release the tension enough to put the belt over the last pulley. Release the tensioner. Carefully inspect EVERY pulley to be sure the belt is not off a groove. Then, if you had to remove that spacer, install it just like you took it off. It'll seem like it won't fit but it will. You may have to pry on the mount a little to provide enough room for it. Put the bolt back in and tighten it up. Replace the wheel and you're done. Crank the engine and watch it to make sure the belt looks good and not coming off anywhere. Hope this helps some. I tried to copy and paste a picture of the routing on here but for some reason it wouldn't let me. Holler back if you have any questions.
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Tuesday, June 2nd, 2009 AT 12:44 PM

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