I have a 1993 Twin Turbo auto, it has got a slight vibration, noticable from 60mph onwards, by the time we get to 120 to 130 its getting quite bad, it feels bad to me anyway, not used to vibrations lol

It seems worse when decelerating from these speeds.

 

I think its the propshaft that requires balancing from reading around, but if anyone has any different ideas or agress with me (would be a first :D) I would greatly appreciate it

 

Thanks

 

Chris

have a go at 70mph then put it into neutral to rule out your prop bud

thats a damn good idea my friend. Thanks

that wont have any effect, prop is still spinning the same speed in gear or not.

fair one. I see what your saying, and it makes sense. Hmm, i've had quotes for having it balanced but non of the places have the facility to remove it, and I dont want to do it. I've not asked any local garages about having it removed, and then refitted. I have found a place that will balance same day for me, but that still means the car being on a ramp (i presume it cannot be moved with no propshaft?) and i dont want to have to pay for a days labour if its not that much work to remove.

 

I'll freely admit i can quote numbers all day to people, but when it comes to doing my skills are worse than non existant.

Most common vibration problem is the prob centre bearing so probably that needs replacing.

 

If it's been off the car it could be the prop halves have been put back together out of alignment but that's pretty easy to sort by unbolting it and turning it 180 degrees.

do you think its worth just having that replaced, while the prop is being balanced. I presume its all gotta be taken apart anyway.

 

What sort of brass am i looking at to replace that? Found a price of £155 +vat for an Nissan OEM part, but im not sure if thats a good price or not?

Have you thought of having the wheels balanced just in case? Cheaper, and easier than the prop. Rear wheels out of balance will shake the car.

Causes:

- Propshaft Centre Bearing

- Tyres

- Gearbox Mount

- Propshaft UV joints

- Propshaft remounted mounted 180 out.

have a go at 70mph then put it into neutral to rule out your prop bud

 

DOH!! :headvswal :headvswal

Hmm, yeah i suppose i should rule out the easy and cheap potential issues. Try and get them done when im next at home.

Is it possible to tell which component (or if its a combination of) is causing the vibration? Or just a case of work down the list and see when it stops?

Say if someone who knew 300zx's was to ride in it, could they put their finger on it?

Someone who knows what wheels out of balance feels like could tell you.

would deffo get wheels ballanced 1st bud. then as said centre prop bearing & rear box mount.

Someone who knows what wheels out of balance feels like could tell you.

 

My last BMW had an issue with wheel balancing, and this feels somewhat different to that.

That vibrated the steering at certain speeds, this is a worsening vibration the faster you go, noticable stronger when decelerating through higher speeds. It starts to be noticable at 60mph, but only just slowly more pronounced up to 90, over 90 it gets prominent, being mechanically sympathetic i dont like it. Altho even at 120 + its not like its going to disintegrate. If you have ever driven an old saxo its like they are 70 lol

do you think its worth just having that replaced, while the prop is being balanced. I presume its all gotta be taken apart anyway.

 

What sort of brass am i looking at to replace that? Found a price of £155 +vat for an Nissan OEM part, but im not sure if thats a good price or not?

 

Not sure what a good price is on them as mine was done under warranty after I bought the car years ago.

Try Mike at MJP in the traders section, he can usually do great prices on Nissan parts.

The bearing has to come off to drop the prop so won't cost any extra in labour to fit.

With wheels, if the car shakes its the rears, if the steering wheel shakes, its the fronts.

fair one. Hmm, unfortunatly i work away from home all week so it gets quite difficult to get things done a car thats sat outside my house. Unlike a normal car where id just take it to a garage and say fix it, i dont think anything local would have much of a clue...

(I mean when I rang up a local prop shaft balancing place, they asked what it was "NISSAN 300ZX" i replied, and they thought it was a pick up truck.... :-/ )

 

I think i'll explore having the wheels balanced, can't hurt. Then realise its going to cost me about a million quid to fix properly lol