novi 2000 belt problem
I am getting very close to giving up on this and going N/A. One more time being stranded and I'm done.
I have 3 years of doing all the things that are supposed to be hard on belts, like power shifting and running into the rev limiter.
What does Dr. Phil say about it?
Let me know if there's any way I can help, like meeting so we can compare setups to see if anything is noticeably different.......at Phils if you and he think that would do any good.
Is it possible that you or "n_brio" have the manual belt tensioner adjusted too tight, putting the spring tensioner against the stop at the end of its travel? When rotating all the idlers and belt driven accessories by hand, do they feel smooth and turn easily? Is there any wobble in the vibration damper?
Otherwise, I'd think it's an alignment problem. Any significant belt dust?
Or maybe a problem with the bypass valve, as Chris mentioned. You can probably tell if the bypass is working right from the sound when you drive, but if it's never worked right, you might not know what to listen for.
Last edited by Warp Factor; Apr 28, 2008 at 06:40 AM.
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I have 3 years of doing all the things that are supposed to be hard on belts, like power shifting and running into the rev limiter.
What does Dr. Phil say about it?
Let me know if there's any way I can help, like meeting so we can compare setups to see if anything is noticeably different.......at Phils if you and he think that would do any good.
Is it possible that you or "n_brio" have the manual belt tensioner adjusted too tight, putting the spring tensioner against the stop at the end of its travel? When rotating all the idlers and belt driven accessories by hand, do they feel smooth and turn easily? Is there any wobble in the vibration damper?
Otherwise, I'd think it's an alignment problem. Any significant belt dust?
Or maybe a problem with the bypass valve, as Chris mentioned. You can probably tell if the bypass is working right from the sound when you drive, but if it's never worked right, you might not know what to listen for.
Phil had called me on this and I honestly didn't have an answer for him, I never had a single situation like these with our SC here, and I doubt many others have beat their cars harder than we do. I did have problems like that with the ATI head units when the belt was not tight enough, it would cause the belt to snap clean like that. I wish I could offer more help, something is not set up right.If it was an alignment issue the belt would would be frayed along the entire edge of whatever side was off. My suggestion would be to make the sure the tensioner is fully opened while adjusting the new belt.
is this tensioner i have marked to thight to the big wheel??

and how mutch should the tensioner ner the headunit be tighten??
i think bypass valve work becous when i put the foot from the trottle i hear a pusssch
exuse my bad english im from sweden :o




is this tensioner i have marked to thight to the big wheel??

and how mutch should the tensioner ner the headunit be tighten??
i think bypass valve work becous when i put the foot from the trottle i hear a pusssch
exuse my bad english im from sweden :o
is that the idler i have marked blue???

should it be in the highest possition??
and how the hell do i get the belt on then??
becous the tensioner i have mark red is pretty hard to move, if i thighten the belt so that the tensioner stands 12 a clock the belt is very very very thight, to thight??

I have 3 years of doing all the things that are supposed to be hard on belts, like power shifting and running into the rev limiter.
What does Dr. Phil say about it?
Let me know if there's any way I can help, like meeting so we can compare setups to see if anything is noticeably different.......at Phils if you and he think that would do any good.
Is it possible that you or "n_brio" have the manual belt tensioner adjusted too tight, putting the spring tensioner against the stop at the end of its travel? When rotating all the idlers and belt driven accessories by hand, do they feel smooth and turn easily? Is there any wobble in the vibration damper?
Otherwise, I'd think it's an alignment problem. Any significant belt dust?
Or maybe a problem with the bypass valve, as Chris mentioned. You can probably tell if the bypass is working right from the sound when you drive, but if it's never worked right, you might not know what to listen for.
We could look for obvious stuff without Phil, but I'd think he would have already caught that. I just don't have a good way to get the car off the ground to look at the bottom. It'll be a floor jack and a creeper.




I think the problem is that the tensioner is not opened enough if your near the 1 0'clock position. The belt needs a lot of tension, when it is allowed to bottom out the tensioner from not being opened enough, it causes it to snap hard when going from load to no load. The belt will have a surprising amount of stretch if you watch it on a dyno, so you have to make sure your making up all of that while at WOT. With the amount of wrap we have on the head unit pulley, it can actually bottom out the tensioner sometimes while not slipping noticeably, this is when you could have the snapping happening. (letting off at the top of a WOT pull, or during shifts)
The fixed idler , in blue, has three mounting spots. We generally keep the idler in the middle hole, which is the highest hole that will allow the idler to mount in without hitting the W.P. bolts.
Back off the adjustable idler under the head unit pulley, place the belt on all the accessories except for the water pump, open the tesioner slightly, and wrap the belt around the water pump. Then go up top and run the adjustable idler under the head unit pulley to were the belts are practically touching each other.
That is how we set up every car here, and as you can see these guys are just going round after round and mile after mile with smiles. Dont give up, we'll get this glitch ironed out and you will enjoy the car.













