Pulley Problem video
Race Director
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From: Phila Suburbs 2023 C8 & 2013 650ix
Check out this recent thread http://forums.corvetteforum.com/show....php?t=1635321
Chirping belt is the next thing you will probably have and then a pulley replacement because of a failed flex joint on the crank pulley. How many miles on the car?
Chirping belt is the next thing you will probably have and then a pulley replacement because of a failed flex joint on the crank pulley. How many miles on the car?
Thread Starter
Drifting
Joined: Jun 2002
Posts: 1,682
Likes: 3
Check out this recent thread http://forums.corvetteforum.com/show....php?t=1635321
Chirping belt is the next thing you will probably have and then a pulley replacement because of a failed flex joint on the crank pulley. How many miles on the car?
Chirping belt is the next thing you will probably have and then a pulley replacement because of a failed flex joint on the crank pulley. How many miles on the car?
Last edited by xstang; Mar 4, 2007 at 07:44 PM.
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Thread Starter
Drifting
Joined: Jun 2002
Posts: 1,682
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Check out this recent thread http://forums.corvetteforum.com/show....php?t=1635321
Chirping belt is the next thing you will probably have and then a pulley replacement because of a failed flex joint on the crank pulley. How many miles on the car?
Chirping belt is the next thing you will probably have and then a pulley replacement because of a failed flex joint on the crank pulley. How many miles on the car?
Race Director
Joined: Jun 2005
Posts: 10,909
Likes: 2,701
From: Phila Suburbs 2023 C8 & 2013 650ix
Staps on the throttle usually mean a loose belt usually caused by a failed belt tensioner pulley located just above where you took the video. I didn't notice that on mine but could be precursor to steady chirping at all speeds.
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Drifting
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Drifting
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From: Bridgewater Corners Vermont VT
http://forums.corvetteforum.com/show...01&postcount=2
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Elmer
Drifting
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From: Bridgewater Corners Vermont VT
Give him this TSB # and have him look it up
#05-06-01-001A - (Feb 8, 2005)
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Drifting
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CF Senior Member
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From: Tucson Arizona
At least you got it to the dealership before you shredded your serpentine belt or even experienced further damage.
My harmonic balancer became out of alignment on my LPE 403 (with the stock crank-pulley). I have a theory why my pulley 'walked' but I did some research on the subject.
All of the Gen III and Gen IV V8 engines use a press-fit damper with no keyway which has been the case since the LS1 was introduced in 1997. With the 2006 model C6 and possibly with the late model 2005, GM began using a crank-pulley with an integral diamond-embedded (friction) washer (DEW). They also use a special 'stretch-to-yield' bolt which has to be torqued-down extraordinarily tight...I believe to 240 lbs. From what I learned, this special bolt cannot be re-used.
Assuming they will re-use your existing crank-pulley, I would make sure it has the integral friction washer and naturally, that a new bolt is used. Although I doubt the dealership would do this (especially under warranty) the tried and true method would be to pin the crank. Good luck on yours.
My harmonic balancer became out of alignment on my LPE 403 (with the stock crank-pulley). I have a theory why my pulley 'walked' but I did some research on the subject.
All of the Gen III and Gen IV V8 engines use a press-fit damper with no keyway which has been the case since the LS1 was introduced in 1997. With the 2006 model C6 and possibly with the late model 2005, GM began using a crank-pulley with an integral diamond-embedded (friction) washer (DEW). They also use a special 'stretch-to-yield' bolt which has to be torqued-down extraordinarily tight...I believe to 240 lbs. From what I learned, this special bolt cannot be re-used.
Assuming they will re-use your existing crank-pulley, I would make sure it has the integral friction washer and naturally, that a new bolt is used. Although I doubt the dealership would do this (especially under warranty) the tried and true method would be to pin the crank. Good luck on yours.