Vibrations when accelerating

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vanadinite
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Vibrations when accelerating

Post by vanadinite »

Can bad sway bar bushes causes driveline vibrations when accelerating? Mine are bad and the swaybar can move quite easily left to right until the arm hits a bend and wont go through the mount, can provide video if necessary.
I experience these vibrations about 80% of the time when accelerating and the more you accelerate the worse it becomes, almost as if something is unbalanced.
Also it has new wheels and tyres that were just balanced and it made little difference.
And poly engine mounts all round. the issue was mildly present before the mounts were used.
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spetz
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Re: Vibrations when accelerating

Post by spetz »

I wouldn't expect the swaybar to be able to cause such vibrations but you can always disconnect it to test.

Sounds more like driveshafts to me
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Re: Vibrations when accelerating

Post by Bennoz »

+1 on driveshaft, might have a bent one.

Put it up on stands, get someone in it to start it & put into first, you get under & have a look.
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vanadinite
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Re: Vibrations when accelerating

Post by vanadinite »

Bennoz wrote:+1 on driveshaft, might have a bent one.

Put it up on stands, get someone in it to start it & put into first, you get under & have a look.
So it turns out it is the inner CV joints, they're not very happy. To make it worse they are the viscous lsd inner CV joints so fixing them or replacing them is next to impossible. Any ideas?
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Bennoz
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Re: Vibrations when accelerating

Post by Bennoz »

vanadinite wrote:
Bennoz wrote:+1 on driveshaft, might have a bent one.

Put it up on stands, get someone in it to start it & put into first, you get under & have a look.
So it turns out it is the inner CV joints, they're not very happy. To make it worse they are the viscous lsd inner CV joints so fixing them or replacing them is next to impossible. Any ideas?
The inners can be reco'ed. Any driveshaft shop worth a buck should be able to do them.
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vanadinite
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Re: Vibrations when accelerating

Post by vanadinite »

Bennoz wrote:
vanadinite wrote:
Bennoz wrote:+1 on driveshaft, might have a bent one.

Put it up on stands, get someone in it to start it & put into first, you get under & have a look.
So it turns out it is the inner CV joints, they're not very happy. To make it worse they are the viscous lsd inner CV joints so fixing them or replacing them is next to impossible. Any ideas?
The inners can be reco'ed. Any driveshaft shop worth a buck should be able to do them.
Rang around today, only 1 place will even look at it so ill give them a try and see how i go.
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vanadinite
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Re: Vibrations when accelerating

Post by vanadinite »

Took it down today. the cv dude said it only happens at high 2dn gear, all 3rd gear and goes away mostly in 4th. He said it could be the inners but it could also be the gearbox apparently, any thoughts?
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Re: Vibrations when accelerating

Post by evo-gsr »

If the inners are fucked like you said....get them fixed first. :roll:

Then report back.
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vanadinite
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Re: Vibrations when accelerating

Post by vanadinite »

evo-gsr wrote:If the inners are fucked like you said....get them fixed first. :roll:

Then report back.
No point spending $300+ to get the shafts fixed to then find out it was the gearbox the whole time. I'm not asking for a diagnosis over the internet, just wanting to know if the gearbox can cause these sort of issues. Driveshaft shop said if the shafts were definitely the issue it would be present in all gears at all times not just some of the time. Thanks
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Daniel2019
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Re: Vibrations when accelerating

Post by Daniel2019 »

Yes, gearbox can cause those issues. I agree, if it were a driveshaft then it would be more consistent.

But, stranger things have happened.
I fix cars.
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vanadinite
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Re: Vibrations when accelerating

Post by vanadinite »

Daniel2019 wrote:Yes, gearbox can cause those issues. I agree, if it were a driveshaft then it would be more consistent.

But, stranger things have happened.
Thanks Daniel,

I think ill just put another box and shafts in cause I don't want the hassles.
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Re: Vibrations when accelerating

Post by Daniel2019 »

Personally I would swap the shafts and see how you go. It's only a 20 minute job either side and could save you hassle of doing a box.

Having said that, my dartboard says box.
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vanadinite
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Re: Vibrations when accelerating

Post by vanadinite »

Daniel2019 wrote:Personally I would swap the shafts and see how you go. It's only a 20 minute job either side and could save you hassle of doing a box.

Having said that, my dartboard says box.
Shafts are stumpy LSD type and i only have 1 set, cant just swap them out unfortunatly
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Re: Vibrations when accelerating

Post by Bennoz »

Could also be the diff. Those sticky wafer limos have a lifespan.
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Re: Vibrations when accelerating

Post by silverGPX »

Bring a carton over and we can do a box swap. Done it twice now. The only hard part is lining the gearbox back up .


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Re: Vibrations when accelerating

Post by Sahin »

I got a box lol
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Re: Vibrations when accelerating

Post by bjk »

Sahin wrote:I got a box lol
Yeah, but what about a transmission?
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silverGPX
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Re: Vibrations when accelerating

Post by silverGPX »

bjk wrote:
Sahin wrote:I got a box lol
Yeah, but what about a transmission?
D-


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Re: Vibrations when accelerating

Post by Bennoz »

silverGPX wrote:
bjk wrote:
Sahin wrote:I got a box lol
Yeah, but what about a transmission?
D-
:lol:
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Re: Vibrations when accelerating

Post by bjk »

:creepymatt:
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