What part name or number is this pulley. - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-22-2006, 07:45 PM   #11
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I seem to be having a hard time getting the part number from GM P Direct. Doesn anyone know what it is? Do you have to joing in order to retrieve that info?

Thanks
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Old 08-23-2006, 05:51 PM   #12
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I don't know about that pulley on the '95, but the smooth pulleys on my '92 and '93 look like that, and local auto parts stores carry them for roughly $20 each. They're Dayco #79007, 76mm smooth idler pulleys. The OEM version is made of plastic, the aftermarket versions are made of steel. I can't comment about the threads on the '95, but on my '92 and '93, the mounting bolts have normal threads (counterclockwise to remove).
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Old 08-23-2006, 10:05 PM   #13
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Part numbers for 3" (which that is), 3.25", and 3.5" are all in Techinfo. Your angle is funny, but that appears to be the idler attached to the accessory belt tensioner.

Make sure the tensioner is not worn out, as it can cause the pully to make noise.
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Old 08-23-2006, 10:22 PM   #14
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I don't know about that pulley on the '95, but the smooth pulleys on my '92 and '93 look like that, and local auto parts stores carry them for roughly $20 each. They're Dayco #79007, 76mm smooth idler pulleys. The OEM version is made of plastic, the aftermarket versions are made of steel. I can't comment about the threads on the '95, but on my '92 and '93, the mounting bolts have normal threads (counterclockwise to remove).

Thanks for the info I dodn't know if they're the same for the 95 either, but I do need to get the exact part number so I can order it from GM parts direct.



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Originally Posted by willwren
Part numbers for 3" (which that is), 3.25", and 3.5" are all in Techinfo. Your angle is funny, but that appears to be the idler attached to the accessory belt tensioner.

Make sure the tensioner is not worn out, as it can cause the pully to make noise.

It seems to grab Will, the warmer the car gets the more it tends to catch. I checked the Techinfo and couldn't seem to find it. Can you steer me in the right direction?

Thanks
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Old 08-24-2006, 12:53 AM   #15
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Dood.. U have a fsm. Go see wats it is. Crappy tire or napa or autozone or advance auto store or any auto store will have it. Crappy tire n autozone allowed me to take what they had out to my car to ensure it was the right one when I had to change mine. (and yes it was made of metal not plastic.. But the bearing usually fails in the pulley..the plastic pulley was never out of round on mine.. Just grooved from wear ). I offered even for them to hold my licence so they won't think I'm takin off with it, and they just let me take it out n other time accompanied me to ensure that'* the one I need. Gmpartsdirect may however give u an OEM plastic one
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Old 08-24-2006, 07:59 AM   #16
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Look at it this way ..

If it'* a tensioner pulley.. You push the bolt tighter when you remove tension to remove the belt. Turn the opposite way to take the bolt off.
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Old 08-28-2006, 03:35 PM   #17
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I took the so called tensioner pulley off, it'* plastic, and doesn't seem to have any problems with itwhen I rotated it by hand, it didn't seem to grab or have any feel of any grinding. Anyway, there are two tensioner'*, I guess I just go to the parts store and tell them which one this ataches to? Both tensioner'* seem to be the same size. I took a picture of both sides.



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Old 08-28-2006, 04:00 PM   #18
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There are NOT two tensioners on your motor. Only L67'* have two.

There'* a big difference between idler and tensioner. Your tensioner has an idler pulley on it, but there are other idler pulleys.

Which is which? Can you be more specific, and yes, any auto parts stores will have those, in either plastic or steel depending on where you go.
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Old 08-28-2006, 05:07 PM   #19
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Thanks for the reponse Will, when you ask me to be more specific, does the picture at the top help? What I did is exchange the tensioner which went around the alternater and power steering pump,( this is the one that'* starting to grab) with the */C, A/C compresser, etc. pulley. They we're both 3 " and plastic so I figured they we're identical. Well, the other pulley made the same noise as well as started grabbing also. This would lead me to believe that it'* not the tensioner. By the way, I priced out the 3" tensioner from my local auto parts store and they wanted $97.38.......holly crap.......I'n not having a good day.........
Now I don't know what is making that tensioner react this way the only thing it can be is the alternator of power steering pump.....that'* my guess.

What do you think?
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Old 08-28-2006, 05:15 PM   #20
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Get a short 4-6 feet hose.. put one side to your ear.. and put the other to each of the pulley while the car is running.. you will hear which pulley is making the noise.. you can also use a long screwdriver to hear and feel for which pulley is giving the most vibration ( but be careful.. you have only one head. )
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