Vibrations ( again )
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 3,010
Likes: 1
From: Sweden/Stockholm
Vibrations ( again )
Got this vibration on a friends 90 ZF vette.
It started after a clutch swap.
We got the flywheel resurfaced ( yes i know ). A new GM PP and a new GM clutch.
They took about 0.8mm from the FF. We installed it all in the car. And yes we hade everything marked when we took it apart, both teh FF and drive line.
Now we have a vibration at about 75MP/H. What we have tried is to press down the clutch in 75MP/H to let the engines RPM go down to idel, and we still got vibration! So that must indicate that the vibration is NOT from the FF setup, or..???
We have also tried to rotated the wheels with no luck.
With this installation we also changed the u-joints on the drive shaft. Must we rebalance the driveshaft after, cause we dident do that.
Must a new PP be rebalanced with the FF attached?
Help me help my friend locate the source of this. i really dont like the ide of take the tranny out again.
Regards
It started after a clutch swap.
We got the flywheel resurfaced ( yes i know ). A new GM PP and a new GM clutch.
They took about 0.8mm from the FF. We installed it all in the car. And yes we hade everything marked when we took it apart, both teh FF and drive line.
Now we have a vibration at about 75MP/H. What we have tried is to press down the clutch in 75MP/H to let the engines RPM go down to idel, and we still got vibration! So that must indicate that the vibration is NOT from the FF setup, or..???
We have also tried to rotated the wheels with no luck.
With this installation we also changed the u-joints on the drive shaft. Must we rebalance the driveshaft after, cause we dident do that.
Must a new PP be rebalanced with the FF attached?
Help me help my friend locate the source of this. i really dont like the ide of take the tranny out again.
Regards
Race Director
Joined: Aug 2002
Posts: 13,356
Likes: 0
From: tucson AZ
St. Jude Donor '04 & '05
Re: Vibrations (devilfish)
Have you checked the Harmonic Balancer?????
Just a thought, after I found mine had gone south...vibration only at speed...for my problem.
:eek: :eek: :eek:
Just a thought, after I found mine had gone south...vibration only at speed...for my problem.
:eek: :eek: :eek:
Team Owner
Joined: Apr 2002
Posts: 43,370
Likes: 0
Re: Vibrations (devilfish)
I'm confused, what's an FF? The only conotation for FF that I know, in terms of cars, if Front Engine/Front Wheel Drive. This obviously cannot really apply to a Corvette, because it's an FR car. :confused:
[Modified by GDP, 5:18 PM 11/1/2002]
[Modified by GDP, 5:18 PM 11/1/2002]
