Serptentine Belt Broke Today - 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 10-21-2003, 06:02 PM   #11
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I apologize in advance for my own stupidity when it comes to belts and belt-driven accessories.

All of the pulleys are fine.... except for the front-most one. I think it'* an idler pulley, 'cause it doesn't look like it spins anything, but i'm not sure. There are three pictures in my gallery that show the dead pulley, a zoomed out pic of the dead pulley, and that entire side of the engine. Can anybody tell me which pulley this is?

Also, if anybody can put up diagrams of how the belts go through the engine, i'd really appreciate it. I'm searching as it is, but I can't seem to find anything.

http://gallery.caraudio.com/pp/showg...hp?ppuser=4297
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Old 10-21-2003, 06:22 PM   #12
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Okay, I ordered the supercharger belt, and I already had a spare main belt, plus I ordered the idler(?) pulley that broke. How do I go about putting on the idler? Sorry to ask so many questions, but I obviously don't wanna screw anything up.
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Old 10-21-2003, 07:31 PM   #13
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You were right. I was yankin' on the damn thing for a good 10 minutes, and now with one little tug, the bolt came right out. One more question real quick though. I can't get the belt today, but i'm about to go get the pulley. Is it okay to run the engine without the supercharger belt on? I couldn't see any reason why not, but I could be wrong.
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Old 10-21-2003, 07:33 PM   #14
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And BTW, thanks so much for all the help
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Old 10-21-2003, 08:45 PM   #15
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Okay, I promise, this is the last question. I jacked up the engine, and got the nut off of the bolt going through the mount, but I can't get the bolt more than halfway through the mount. Should it be more loose? I suppose that I didn't jack up the engine enough, but it went up at least 2 1/2 or 3 inches. Any suggestions are readily welcome...
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Old 10-21-2003, 09:00 PM   #16
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Yeah, the bolt was really hard to move. I had to knock it with a hammer to get it as far as it went. I'm gonna try putting it back in, and lowering the engine down a bit. I changed a belt on a 3800 S2 SC before (in a Buick Roadmaster or something), and I remember the bolt coming out pretty easily.
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Old 10-21-2003, 09:21 PM   #17
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Well, after a whole bunch of bruised and cut knuckles, I finally got the bolt out, but now i'm stuck trying to figure out what else comes out of the mount. I thought there was a metal sleeve inside that slid out, but apparently not... Oh well, time for more research.
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Old 10-21-2003, 09:44 PM   #18
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Wow, i'm not retarded, really...

This whole time I was taking the bolt out of the middle of the big bushing type thing.... not the one going through the little sleeve on the lower part of the motor mount.
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Old 10-24-2003, 06:32 PM   #19
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I had my belt strip apart long-ways as well on my 95 SE. I was 700 miles from home! Thankfully, I was approaching the exit to my hotel. Manual steering is a B****. Anyway, the reason why it went out was because the belt tensioner was bad. We have the "mother of all belt tensioners" because the alternator attaches to it and other complexities. The shop changed the belt tensioner and put the new belt on (which you can't do on a 95 without messing with that engine mount). So, my advice is to check your tensioner. The belt left strips of material around some of the pulleys so check for that as well. Hope this helps.
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Old 10-31-2003, 04:18 PM   #20
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anyone have advise on when to change the serpentine belts before they break? Is there a general guideline on when the belts should be replaced (by age, or by milage)? If they look ok and don't make too much noice should I just leave them? I've got 92K on a '95, and I think the belts are original
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