Z06Vette.com Z06Vette.com

Go Back   Z06Vette.com - Corvette Z06 Forum > C5 Z06 Specific Topics > C5 Z06 - Pit Road
Z06vette.com is the premier Corvette Z06 forum on the internet. Registered Users do not see the above ads.Please Register - It's Free!
Reply
 
LinkBack Thread Tools Display Modes
Old 07-04-2009, 09:32 PM   #1 (permalink)
Junior Member
 
Join Date: Sep 2008
Location: Winfield WV
Posts: 18
Main Drive Belt Jumping Groove

Hello, all, and thanks in advance for any advice offered. I have not had this 02 Z very long, and have noticed that the main drive belt is "jumping" out of line by a groove. Anyone else had this happen? Is this an alignment issue? I've found it this way twice. It is simple enough to get back in line, but I want to get to the root cause. Thanks again.
johnryanbuilder is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-05-2009, 09:09 AM   #2 (permalink)
Z06 Master
 
Join Date: Jul 2001
Location: King George, VA
Posts: 5,565
Re: Main Drive Belt Jumping Groove

I've lost a few belts at the track. Common cause seems to just be the belt and not any misalignment of any of the driven components. Everytime I've had the same problem, I put a new belt on and its good for quiet a while. I recommend a new belt for you. But, when the belt is off, I'd check the driven components, such as the alternator, for excessive longitudinal play (e.g. in line with the shaft which would cause it to be out of line with the belt).
Subdriver is offline   Reply With Quote
Old 07-05-2009, 10:33 AM   #3 (permalink)
Z06 Master
 
RocketSled's Avatar
 
Join Date: Apr 2002
Location: Mass
Posts: 3,117
Re: Main Drive Belt Jumping Groove

I agree with SubD. There's not a lot that can get misaligned in a stock LS6 accessory belt system. But the belt can jump due to a soft tensioner, and/or a stretched belt, particularly when you're hitting the shifts *hard*. You're new to the car, so you might not have any maintenance history, but it costs little to just replace the belt. That being said, I know that a Kevlar OEM-sized replacement is available - I'd get that if I could find it someplace. The kevlar backed belts are substantially stronger and more resistant to stretching than the standard belt.

My setup is far from standard, and I had a problem with the belt jumping, not due to alignment, just due to the loads being placed on the belt combined with my style of driving. When I finally switched to a kevlar belt, my problems disappeared. I keep a spare belt in the car just in case, but I haven't thrown a belt in 2 years.
__________________

Now, Vortech powered!
_________Click for details_________

Download a Z06VETTE screensaver
Black, QS, Torch, Blue, Mil. Yellow,
C6!
RocketSled is offline   Reply With Quote
Old 07-05-2009, 01:48 PM   #4 (permalink)
Z06 Authority
 
Pit Man's Avatar
 
Join Date: Mar 2005
Location: Orange Park, Fl
Posts: 1,443
Re: Main Drive Belt Jumping Groove

Quote:
Originally Posted by RocketSled View Post
I agree with SubD. There's not a lot that can get misaligned in a stock LS6 accessory belt system. But the belt can jump due to a soft tensioner, and/or a stretched belt, particularly when you're hitting the shifts *hard*. You're new to the car, so you might not have any maintenance history, but it costs little to just replace the belt. That being said, I know that a Kevlar OEM-sized replacement is available - I'd get that if I could find it someplace. The kevlar backed belts are substantially stronger and more resistant to stretching than the standard belt.

My setup is far from standard, and I had a problem with the belt jumping, not due to alignment, just due to the loads being placed on the belt combined with my style of driving. When I finally switched to a kevlar belt, my problems disappeared. I keep a spare belt in the car just in case, but I haven't thrown a belt in 2 years.
Where are you finding the Kevlar belts ?

Pitt
__________________
2003 Z06 - 1.473 sixty foot , 383 Stroker NA, 390 Gear. Pete Incaudo Street Cam, Full interior, stock suspension, thru stock mufflers. All out of the box parts, no porting or tricks. 10.66 @ 129mph
2000 Silverado, Best 1.54 sixty, 402 Stroker NA, 410 gears, Street cam, heads and Fast by Pete Incaudo 11.17 ET & 119 mph
Pit Man is offline   Reply With Quote
Old 07-05-2009, 08:12 PM   #5 (permalink)
Z06 Master
 
RocketSled's Avatar
 
Join Date: Apr 2002
Location: Mass
Posts: 3,117
Re: Main Drive Belt Jumping Groove

I think I ordered mine from Vortech, since the problem was in large part due to the Blower and an effect called "reflected inertia" (when the engine speed changes suddenly, all the spinning accessories have inertia that must be overcome by the belt. The blower adds a *lot* of inertia to the system. The effect on the belt is as if those accessories continue to "push" the belt faster than the motor wants the belt to be moving and that causes the belt to stretch and go slack on the tensioner side of the loop). But if I recall, it's a "Gates" manufactured belt, it ought to be available other places besides Vortech (the Vortech belt routing is radically different from OEM, but Vortech had the courtesy to keep the same overall belt length as stock).
__________________

Now, Vortech powered!
_________Click for details_________

Download a Z06VETTE screensaver
Black, QS, Torch, Blue, Mil. Yellow,
C6!
RocketSled is offline   Reply With Quote
Old 07-08-2009, 02:59 PM   #6 (permalink)
Z06 Member
 
Last C5's Avatar
 
Join Date: Jun 2005
Location: Vancouver, Washington
Posts: 83
Re: Main Drive Belt Jumping Groove

While you're at it replace your stock tensioner with an LS2 tensioner. They have taller sidewalls and accomodate the Zs sometimes erratic belt movement. My buddy's 02Z was doing what yours is doing and that solved the problem completely. It's a direct bolt on replacement.
Last C5 is offline   Reply With Quote
Old 07-15-2009, 10:21 AM   #7 (permalink)
Junior Member
 
Join Date: Sep 2008
Location: Winfield WV
Posts: 18
Re: Main Drive Belt Jumping Groove

Thanks for the info guys. So far so good with a new belt. The tensioner seemed fine so I went ahead and left it on more out of curiosity to see if it was the belt or tensioner causing the problem. Once I'm satisfied, I'll go ahead and replace the tensioner just as a precaution, and I'll try the LS2 unit.
johnryanbuilder is offline   Reply With Quote

Reply

  Z06Vette.com - Corvette Z06 Forum > C5 Z06 Specific Topics > C5 Z06 - Pit Road


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Main Drive & AC Belt Replacement LeRox C5 Z06 - Pit Road 5 12-16-2008 04:13 PM
Magna Charger Drive Belt NYCHASM C5 Z06 - Forced Induction & Nitrous 3 08-13-2006 08:57 PM
**DTE HD Vortech S/C Belt Drive Kit** (photos) Dynotech Eng. Vendor Sales - C5 14 01-04-2006 10:25 AM
Like Jumping Out Of Planes?Think Twice Look artnj04z06 The Garage (non Vette related) 1 12-05-2005 04:08 AM
Jumping off the Zaino Bandwagon... IMBLISS Vendor Sales - C5 44 09-03-2002 02:56 PM

» Log in
User Name:

Password:

Not a member yet?
Register Now!

» Latest Auto News
Mercedes CL65 AMG Black Edition by Anderson Germany
Even though Anderson Germany is labeling its Mercedes-Benz CL65 AMG
Take Your Toddler For a Spin in Playsam’s Roadster Saab
A tricycle just won’t cut it for your little style maven. Your
Germanys GRiP Magazine Tests What Tuner Car is Best for Robbing a Bank [video]
Even though we don’t understand a single word of this video, we
» New Car Reviews
2011 Lexus IS350C Review
The IS350 C is the way luxury convertibles were meant to be
2010 Volkswagen Jetta SportWagen Review
The Jetta SportWagen delivers practicality, without the high center of
2010 Ford Transit Connect Review
The 2010 North American Truck of the Year is in a Class all its Own...
2011 Porsche Boxster Spyder Review
Consider the Spyder Porsche's version of a Boxster GT3
2010 Toyota Tacoma Review
Toyota's Tacoma compact pickup is the segment leader for a very long
» Featured Product
» Wheel & Tire Center

Sponsors

Sponsors

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 08:20 PM.


Powered by vBulletin® Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2