Question about 1997 Oldsmobile Cutlass Supreme

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Not currently at home to help son, he just called and his 1997 cutlass supreme six cylinder bottom motor pulley not turning with belt. Making a loud sound due to belt slipping on bottom pulley What does the bottom pully go to and what does it drive. We had to repalce the drive pulley and belt 6 moths ago.

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  • rmayfield Feb 02, 2009

    Is the lower pulley keyed and attached to the crankshaft. If so how could the bottom pulley be turning slower than the belt? Could it be a double pulley and the second pulley be messed up. I wish I had a book to look at?

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That Bottom Pulley is for the Timing Belt and the Crankshaft. There could be a lot more Problems than what he can see. Hopefully the Pulley is just Bent and he will not have to tear into the Motor for repair. Please Rate My Response! Thanks!

Posted on Feb 02, 2009

  • Travis Humphries
    Travis Humphries Feb 03, 2009

    If the Crankshaft is in a Bind, It will turn Slower that the Belt and Cause the Noise. You can get a Haynes ao Chilton Repair Book at your Library or at their Websites. This would make it a Lot Easier on your Side.

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1 Answer

If idle pulley was replaced and still noise what is it


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If it's a v-6, then use a 1/2 " breaker bar to make the tensioner pulley move to loosen the belt if it's on there. If it's already off, this is the last pulley that you put the belt on.

Just buy the serpentine belt for the dngine that is in the cutlass supreme at your local parts store.

Then, thread the belt on to the pulleys with the grooved ends towards the grooved side of the belt, and the smooth sides towards the smooth pulleys until the last pulley is the tensioner pulley.

One may want to look at the tensioner and try to see if there is excessive side to side play which would cause the belt to fly off.

Good luck on this repair.

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