Technical Vibration

[Deborah Joan]

My 10 y.o. Croma started to mildly vibrate about 6 months ago, including feeling it through the steering wheel, as I increased speed from 32, 35, up until 40 m.p.h., when it would cease, and behave excellently.
Last Saturday I had two brand new tyres fitted on the front, all wheels balanced, and tracking checked, yet the slight vibration is still there.
I will be calling the Italian car specialist who does my servicing, to arrange a visit, but until then, does anyone have any idea of what may be the cause?
Acquaintances have suggested checking brake rotors and/or calipers, any other suggestions?

 

[g8rpi]

My 10 y.o. Croma started to mildly vibrate about 6 months ago, including feeling it through the steering wheel, as I increased speed from 32, 35, up until 40 m.p.h., when it would cease, and behave excellently.
Last Saturday I had two brand new tyres fitted on the front, all wheels balanced, and tracking checked, yet the slight vibration is still there.
I will be calling the Italian car specialist who does my servicing, to arrange a visit, but until then, does anyone have any idea of what may be the cause?
Acquaintances have suggested checking brake rotors and/or calipers, any other suggestions?

Hi,
you don't say what engine and gearbox you have, but I'm assuming it's a diesel with 6 speed manual.
A known problem is the drive shaft CV joint's. These are a type called "tulip" joints due to their shape. The long right hand side shaft suffers most. The common long term fix is to fit second hand shafts and joints from a Vauxhall Vectra C. You need the ones from a Vectra with the R32 gearbox. Make sure you get the center support bracket and the bolts hat hold it to the gearbox. Apart form the bracket bolting to a different place on the gearbox they are a direct fit. Dis my outboard week before last. Only problem was getting the old shaft out but even that would have been easy on a lift.
Search tulip or drive shaft in theis section and you will find a couple of long posts.


HTH,
Robert G8RPI

 

[Deborah Joan]

Hi,
you don't say what engine and gearbox you have, but I'm assuming it's a diesel with 6 speed manual.
A known problem is the drive shaft CV joint's. These are a type called "tulip" joints due to their shape. The long right hand side shaft suffers most. The common long term fix is to fit second hand shafts and joints from a Vauxhall Vectra C. You need the ones from a Vectra with the R32 gearbox. Make sure you get the center support bracket and the bolts hat hold it to the gearbox. Apart form the bracket bolting to a different place on the gearbox they are a direct fit. Dis my outboard week before last. Only problem was getting the old shaft out but even that would have been easy on a lift.
Search tulip or drive shaft in theis section and you will find a couple of long posts.


HTH,
Robert G8RPI

Thanks for the input, but it's an automatic diesel
D.J.

 

[g8rpi]

Thanks for the input, but it's an automatic diesel
D.J.

OK,
I'll look at ePer for the auto when I get home and see what CV joints it uses.


Robert G8RPI.

 

[g8rpi]

Checked ePer and as expected th automatic 'box shafts are different. I don't know if there are Vauxhall shafts that will fit. One other option is to repack the tulip joint with new grease, again there are threads on the forum describing this.

Robert G8RPI.