S2KI Honda S2000 Forums - vibration under deceleration?

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vibration under deceleration?

Hi all,

had this issue for a while and had a search on here, but couldnt find an answer.

basically theres a lot of vibration when decelerating in gear, coming either from the middle or the rear of the car, my mechanic had a look and said it could be the driveshaft or diff.

looking through the forum i can only see info regarding vibration under acceleration or a diff whine, neither of which cover this issue!

any help appreciated.

cheers

Original 99 clutch?

That'll be why.

Quote:

Originally Posted by Dembo (Post 23637071)

Original 99 clutch?

That'll be why.

nope, had the clutch changed last year with lightened flywheel and stage 1 clutch...

Quote:

Originally Posted by AlexGJ248 (Post 23637093)

Clutch buzz?

i wouldnt say its the clutch, as the clutch is perfect when the car is being driven, doesnt slip or anything, and it is relatively new.

the vibration takes over the whole car too, its quite substantial... when i go out later i will test if its speed or RPM dependent as some other threads have suggested

Can you get this with worn inner drive shaft cups ?

Quote:

Originally Posted by BenRNBP (Post 23637101)

Can you get this with worn inner drive shaft cups ?

is this the half shaft thing where you swap the inside parts over from each side?

thats the closest i could see to the issue, as its common on lowered cars too which this is. but again that is under acceleration not deceleration i think...

Quote:

Originally Posted by lukeyboi89 (Post 23637096)

i wouldnt say its the clutch, as the clutch is perfect when the car is being driven, doesnt slip or anything, and it is relatively new.

The original clutch buzz would happen even though there was nothing wrong with the clutch. It could still be your replacement clutch; I believe some of them still buzz. But that's a buzz rather than a vibration, and would sound like it was coming from under the radio. If your whole car is shaking, it's probably not that.

Does it do it in neutral with braking? If so it's probably more likely suspension related, whereas if it's only in gear it's probably to do with the drive train.

Quote:

Originally Posted by Dembo (Post 23637107)

Quote:

Originally Posted by lukeyboi89' timestamp='1433503925' post='23637096

i wouldnt say its the clutch, as the clutch is perfect when the car is being driven, doesnt slip or anything, and it is relatively new.

thanks for the input

its really hard to define a buzz or vibration but it does sound like a buzz, but its only when in gear and it is quite loud and makes the rear view mirror shake a bit which i dont think a buzz would do? hence why my mechanic stated its probably drive shaft or diff....

If someone has swapped the inner CVs over in the past then it could explain it