Vibration at 85mph

[Tincan]

Driving home down the Mway having just completed the purchase of my beautiful Mk1 I noticed an amount of vibration starting around about the 85 MPH mark. It didn't seem to be via the steering but the dash pod was definetly excited! Can anyone tell me if this is normal?
Ps my wife was in the car and would not allow me to test if it cleared up if you pushed on!!
Any thoughts very welcome

[valhalla]

Tincan said:

Driving home down the Mway having just completed the purchase of my beautiful Mk1 I noticed an amount of vibration starting around about the 85 MPH mark. It didn't seem to be via the steering but the dash pod was definetly excited! Can anyone tell me if this is normal?
Ps my wife was in the car and would not allow me to test if it cleared up if you pushed on!!
Any thoughts very welcome

Hi.Could be wheels not balanced....Dave

[VARLEYHYD]

Rear wheel will be bent

G

[Tincan]

Hmm my thoughts were balance too but I would have expected to feel it through the steering. However it has had new tyres on the front. Maybe get the rears checked. Hope it isn't a bent wheel !!!

thanks gents

[Cockey]

Mine did this between 80-90mph. Outside of this speed range it was fine.. Turned out to bear a buckled rear wheel.

[dvs_dave]

+1 on a buckled wheel. Same symptoms with mine, only fixed by a new wheel.

[VARLEYHYD]

dvs_dave said:

+1 on a buckled wheel. only fixed by a new wheel.

Jack car up at rear, spin wheel until you find bent bit.

Get appropriate piece of soft wood wrapped in old jumper

Put above on rim at offending area

Carefully hit with mallet until straight

Job done

Vibration gone

... Until next time

G

[benny4x]

hi i had the same on mine had wheels balanced and it was sorted

[Englishman]

dvs_dave said:

+1 on a buckled wheel. Same symptoms with mine, only fixed by a new wheel.

+1 too

[Tincan]

Well thanks for the advice I will check for obvious damage, I like the idea of a hammer but can't say I would trust myself with that approach ( are they really that delicate)?
Thinks check the balance first!
Many thanks everyone
The first question of many I suspect

[RedSpike66]

VARLEYHYD said:

dvs_dave said:

+1 on a buckled wheel. only fixed by a new wheel.

Jack car up at rear, spin wheel until you find bent bit.

Get appropriate piece of soft wood wrapped in old jumper

Put above on rim at offending area

Carefully hit with mallet until straight

Job done

Vibration gone

... Until next time

G

Love it !!!

Does it matter what kind of jumper one uses ??

[Konrod]

Had exactly the same thing, rear wheel balance cured it. Until it lost a weight and I had to have it balanced again.......

[Tincan]

RedSpike66 said:

Love it !!!

Does it matter what kind of jumper one uses ??

I think sir might consider a long jumper as it might reduce the risk of the mallet /thumb interface becoming problematic

[GTrr]

Had the same problem but also at higher speeds. Checked the wheels, wasn't that.
Turned out to be the exhaust cans which aren't supported in any way so they just flap about. My dealer made an extra fixation point to the body just before the can, problem sorted.

[blueg33]

Could be a propshaft UJ that needs repacking with grease. I had it on the G33 at speeds over 120mph. Had to go to an airfield to demonstrate the symptoms to Neil Garner

[12Esc]

Could also be that the car was parked in the same spot for a long time (winter?). Might have resulted in a flat spot on the tire. After some driving this should disappear.

[Tincan]

blueg33 said:

Could be a propshaft UJ that needs repacking with grease. I had it on the G33 at speeds over 120mph. Had to go to an airfield to demonstrate the symptoms to Neil Garner

thanks for the view.
I thought UJ's were sealed for life?

[blueg33]

Tincan said:

thanks for the view.
I thought UJ's were sealed for life?

Not on the G33 (which has the same uj's as a Chim and a Griff. I wouldnt be surprised if they are the same in a speed 6 car. In fact, I am pretty sure its on the service schedule

[Tincan]

blueg33 said:

Tincan said:

thanks for the view.
I thought UJ's were sealed for life?

Not on the G33 (which has the same uj's as a Chim and a Griff. I wouldnt be surprised if they are the same in a speed 6 car. In fact, I am pretty sure its on the service schedule

Had a look can't find any mention of it. I guess there would be a tell tale grease nipple?

[stubop]

there are grease nipples on my tuscans prop