Belt came off..Why?
Thread Starter
Instructor
Joined: Sep 2006
Posts: 166
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From: Sarasota Florida
Belt came off..Why?
Started the Vette this morning and I had no power steering. When I looked under the hood the sepentine belt was off. It didn't break it was just of the pulleys. My wife said it was fine when she parked it last night. I can't see any obvious for the belt to coming off. With my sons assistance I pushed on the tensioner while he sliped the belt back on the altenator pully. Took it for a test drive and had no problems.
Anybody have any idea what might have caused the belt to come off? If it came off once it'll probably do it again and probably not in my yard next time!
Anybody have any idea what might have caused the belt to come off? If it came off once it'll probably do it again and probably not in my yard next time!
Last edited by robertp; Nov 23, 2006 at 12:58 PM.
Pro
Joined: Feb 2004
Posts: 638
Likes: 1
From: Bainbridge Island Wa
Originally Posted by robertp
Started the Vette this morning and I had no power steering. When I looked under the hood the sepentine belt was off. It didn't break it was just of the pulleys. My wife said it was fine when she parked it last night. I can't see any obvious for the belt to coming off. With my sons assistance I pushed on the tensioner while he sliped the belt back on the altenator pully. Took it for a test drive and had no problems.
Anybody have any idea what might have caused the belt to come off? If it came off once it'll probably do it again and probably not in my yard next time!
Anybody have any idea what might have caused the belt to come off? If it came off once it'll probably do it again and probably not in my yard next time!
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
The MOST COMMON reason for a car to throw a serpentine belt is:
1- A bad belt
2- The harmonic balancer pulley is working its way off the crank! Happens all the time.
Check it out! If it has any kind of warranty, get it looked at.
BC
1- A bad belt
2- The harmonic balancer pulley is working its way off the crank! Happens all the time.
Check it out! If it has any kind of warranty, get it looked at.
BC
Le Mans Master
Joined: Jun 2004
Posts: 6,269
Likes: 50
From: Dallas Texas
St. Jude Donor '06-'07-'09-'10
Originally Posted by Bill Curlee
The MOST COMMON reason for a car to throw a serpentine belt is:
1- A bad belt
2- The harmonic balancer pulley is working its way off the crank! Happens all the time.
Check it out! If it has any kind of warranty, get it looked at.
BC
1- A bad belt
2- The harmonic balancer pulley is working its way off the crank! Happens all the time.
Check it out! If it has any kind of warranty, get it looked at.
BC
Also, check your Belt Tensioner Pulley. If it gets weak and out of alignment, you'll throw belts.
Thread Starter
Instructor
Joined: Sep 2006
Posts: 166
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From: Sarasota Florida
I]ll buy a belt tomorrow. The belt tensioner does not look like it's exactly verticle. Looks like it leans in slightly at the top. Could this be the problem? Harmonic balancer pulley looks ok from what I can see. Unfortunately no warranty.
Le Mans Master
Joined: Jun 2004
Posts: 6,269
Likes: 50
From: Dallas Texas
St. Jude Donor '06-'07-'09-'10
Originally Posted by robertp
I]ll buy a belt tomorrow. The belt tensioner does not look like it's exactly verticle. Looks like it leans in slightly at the top. Could this be the problem? Harmonic balancer pulley looks ok from what I can see. Unfortunately no warranty.
If the tensioner looks like it's tilting in, that's your problem. Get a new one and a belt from one of the Forum Vendors like Fred Bean or GM Parts Direct. It's a simple replacement job.
Le Mans Master
Joined: Sep 2003
Posts: 6,276
Likes: 227
From: Farmington CT
Cruise-In VII Veteran
Originally Posted by robertp
I]ll buy a belt tomorrow. The belt tensioner does not look like it's exactly verticle. Looks like it leans in slightly at the top. Could this be the problem? Harmonic balancer pulley looks ok from what I can see. Unfortunately no warranty.
Advanced
Joined: Oct 2006
Posts: 64
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From: Tampa Fl
Harmonic balancer pulley looks ok from what I can see
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Pro
Joined: Sep 2006
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From: Ivins, Utah
Originally Posted by robertp
Started the Vette this morning and I had no power steering. When I looked under the hood the sepentine belt was off. It didn't break it was just of the pulleys. My wife said it was fine when she parked it last night. I can't see any obvious for the belt to coming off. With my sons assistance I pushed on the tensioner while he sliped the belt back on the altenator pully. Took it for a test drive and had no problems.
Anybody have any idea what might have caused the belt to come off? If it came off once it'll probably do it again and probably not in my yard next time!
Anybody have any idea what might have caused the belt to come off? If it came off once it'll probably do it again and probably not in my yard next time!
The wife did something wrong, that's all there is to it, like throw it into reverse while moving forward or something.
DO NOT LET HER DRIVE IT ANYMORE !!
Pro
Joined: Sep 2005
Posts: 538
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From: Geneva, IL Bring back the Chief!
St. Jude Donor '06-'07-'08-'09-'10,'13-'14,'19-'20-'21-'22
Originally Posted by Secret237
The wife did something wrong, that's all there is to it, like throw it into reverse while moving forward or something.
DO NOT LET HER DRIVE IT ANYMORE !!
DO NOT LET HER DRIVE IT ANYMORE !!
Only way I know to always be able to get the house rocking. lol
Melting Slicks
Joined: May 2000
Posts: 2,498
Likes: 4
From: Brentwood TN
Look carefully at the crank pulley. If it is wobbling even a little, that may be the problem. Other suggestions on idler pulleys, etc., are good as well. Belts don't just jump off, especially a ribbed serpentine.
Charlie
Charlie
