Vibration after clutch install
Thread Starter
Intermediate
Joined: Nov 2010
Posts: 44
Likes: 0
From: Glen Gardner N.J
Vibration after clutch install
Had new clutch installed,now a 3000rpm AND UP have vibration in floor and shifter,somewhere in drive line cant find where it is coming from.Installed another clutch assy still have vibration.Looking for HELP !!!!!!!!
Melting Slicks
Joined: Dec 2006
Posts: 2,186
Likes: 2
From: Woodinville WA
If you didn't have the clutch and flywheel balanced together, that's the first thing I'd look at.
Last edited by ctusser; Apr 7, 2012 at 04:57 PM.
Drifting
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
Let me know what you find. I have the exact same issue. I had a LS7 clutch put in and I am told they are balanced from the factory and don't need to be balanced. But I really want to get this sorted out too!
Thread Starter
Intermediate
Joined: Nov 2010
Posts: 44
Likes: 0
From: Glen Gardner N.J
Yes the kit comes all balanced,and they put a 2nd kit in.Still have vibration.
Drifting
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
It has been a while since I looked into this, but I believe I was told it could have something to do with the input shaft being out of balance or something. I am going to be seeing my mechanic soon and I hope to have him drive it and see what he says. If he wasn't over 2 hours away from me I would have done it sooner. I want this fixed!
Le Mans Master
Joined: Dec 2000
Posts: 5,245
Likes: 25
From: Blue Ridge Georgia
That's a bummer, and it's so much work to go back and pull it apart again. I was so scared of these types of problems I just put in a new stock flywheel and stock LS6 clutch. I just didn't want any problems afterwards.
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Race Director
Joined: Mar 2001
Posts: 11,405
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From: Whippany NJ
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St. Jude Donor '08-'09
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check if there were weights on OEM flywheel
Drifting
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
Thread Starter
Intermediate
Joined: Nov 2010
Posts: 44
Likes: 0
From: Glen Gardner N.J
They have been replacing parts for 3 weeks,one part at a time said they will find the problem dont worry.Dont worry ? 3 weeks is getting old,get it done!!! This shop is the best around and I need to sit back,and have another drink to chill out.
Last edited by Blackcloud 1; Apr 8, 2012 at 05:01 PM.
Drifting
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
Mine seems to be worst 3-4K RPMs with moderate throttle. I don't feel it much at higher RPMs or at wide open probably just because the engine (and car) are accelerating too quickly. It isn't horrible in my car, but enough to make me uncomfortable about it.
I wish you luck!!!
Last edited by Grimlock; Apr 8, 2012 at 06:29 PM.
Thread Starter
Intermediate
Joined: Nov 2010
Posts: 44
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From: Glen Gardner N.J
This is a nightmare that started when the new clutch was installed.
1st mod they did was COMP CAM with new Slp pulley.The car turned into a monster and would not shift at high rpm,but no vibration.Thinking it was a slave cylinder problem and the car had some track time they said change the clutch it all would be good.The clutch was changed and during the break in period the vibration started,the rpms were not over 3000rpm at that time.I did not fell it right away,after about 100 miles I started to feel the vibration.Like I said it is a nightmare.The car went back so I told them while it was there change the gears as 342 gears suck and 410 would be much better,gears were changed trans brace installed said car was ready come get it.Drove 70 miles and vibration was still there,they had car towed back to them,installed another clutch kit and still have vibration,so the car is still there.Front pulley is next,I still feel it is the clutch that is the problem but they dont.
1st mod they did was COMP CAM with new Slp pulley.The car turned into a monster and would not shift at high rpm,but no vibration.Thinking it was a slave cylinder problem and the car had some track time they said change the clutch it all would be good.The clutch was changed and during the break in period the vibration started,the rpms were not over 3000rpm at that time.I did not fell it right away,after about 100 miles I started to feel the vibration.Like I said it is a nightmare.The car went back so I told them while it was there change the gears as 342 gears suck and 410 would be much better,gears were changed trans brace installed said car was ready come get it.Drove 70 miles and vibration was still there,they had car towed back to them,installed another clutch kit and still have vibration,so the car is still there.Front pulley is next,I still feel it is the clutch that is the problem but they dont.
Racer
Joined: Jan 2010
Posts: 296
Likes: 33
From: Virginia Beach VA
Important questions to be answered first:
1. Was it the stock FW and PP that you had replaced?
2. Was it smooth before replacement?
3. Do you still have both the FW and PP that you replaced laying around somewhere?
1. Was it the stock FW and PP that you had replaced?
2. Was it smooth before replacement?
3. Do you still have both the FW and PP that you replaced laying around somewhere?
Drifting
Joined: Jun 2006
Posts: 1,302
Likes: 4
From: Palo Alto CA
This is a nightmare that started when the new clutch was installed.
1st mod they did was COMP CAM with new Slp pulley.The car turned into a monster and would not shift at high rpm,but no vibration.Thinking it was a slave cylinder problem and the car had some track time they said change the clutch it all would be good.The clutch was changed and during the break in period the vibration started,the rpms were not over 3000rpm at that time.I did not fell it right away,after about 100 miles I started to feel the vibration.Like I said it is a nightmare.The car went back so I told them while it was there change the gears as 342 gears suck and 410 would be much better,gears were changed trans brace installed said car was ready come get it.Drove 70 miles and vibration was still there,they had car towed back to them,installed another clutch kit and still have vibration,so the car is still there.Front pulley is next,I still feel it is the clutch that is the problem but they dont.
1st mod they did was COMP CAM with new Slp pulley.The car turned into a monster and would not shift at high rpm,but no vibration.Thinking it was a slave cylinder problem and the car had some track time they said change the clutch it all would be good.The clutch was changed and during the break in period the vibration started,the rpms were not over 3000rpm at that time.I did not fell it right away,after about 100 miles I started to feel the vibration.Like I said it is a nightmare.The car went back so I told them while it was there change the gears as 342 gears suck and 410 would be much better,gears were changed trans brace installed said car was ready come get it.Drove 70 miles and vibration was still there,they had car towed back to them,installed another clutch kit and still have vibration,so the car is still there.Front pulley is next,I still feel it is the clutch that is the problem but they dont.