What size bolt is used for the pulley on the belt tensioner?

1997 CHEVROLET CAVALIER
190,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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JOHN HARVEY BOEKEN
  • MEMBER
  • 2 POSTS
The bolt came out and lost it and pulley and no one knows the size or threads.
Mar 10, 2023 at 1:43 AM
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JACOBANDNICKOLAS
  • Experienced Mechanic
  • 110,240 POSTS
Hi,

I tried looking everywhere for this information, but it isn't listed in any of the manuals I checked.

Here is what I suggest. Go to an auto parts store and ask to see the pulley. It should have a new bolt with it. Then you can use it at the store to measure the length, and diameter, and try different nuts on it to determine the thread pitch.

Some of these have a shoulder on them as well, so pay attention to that as well. I attached a pic below if what I believe you need. Let me know if you remember if that is what it looked like because there are all kinds of variations.

Let me know.

Joe

See pic below.
Mar 11, 2023 at 12:40 PM
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