Tensioner pulley question

[freneticburn]

If I watch the belt tensioner when someone starts up my car there is quite a jump. A little more motion than I would expect anyway. Is that normal?

A few days ago I started getting some unwanted noise at around 1K rpms. It sounded like a pulley or bad alty so I've been checking it out. That's when I noticed the tensioner moves so much on startup. Will I have to replace the entire assembly? or can I just change the pulley and expect less movement from the tensioner on startup?

[swampthing]

EDIT: i was assuming wrong motor sorry

[imidazol97]

If I watch the belt tensioner when someone starts up my car there is quite a jump. A little more motion than I would expect anyway. Is that normal?

A few days ago I started getting some unwanted noise at around 1K rpms. It sounded like a pulley or bad alty so I've been checking it out. That's when I noticed the tensioner moves so much on startup. Will I have to replace the entire assembly? or can I just change the pulley and expect less movement from the tensioner on startup?

The movement is a matter of the amount of force needed to start things moving as opposed to keeping them moving once started.

Does the pulley make noise when spinning it without the belt? Does it have movement in the bearing? I replaced the pulley only on my 98. It's a reverse thread.

[00Beast]

Swampthing, you're referring to the S/C idler. He's N/A, he's talking the serpentine idler. IIRC, it's all one piece.

[swampthing]

thanks beast totally missed that, i guess i need to remove my post

[93RedSled-SSE]

I have a 93 SSE (NA). I was able to replace just the plastic pulley. Mine would "jump" considerably when I gassed it in Park (bearing drag). I had trouble getting the plastic one from Autozone to work (would lock when I tightened the LH bolt), so ended up with a metal one, for an SC motor, I believe.