Judder

[stillgrinning]

I have recently had a service, new clutch and new tyres and now I am getting an intermittent judder anywhere between 80 & 90 mph. I am also pretty sure that the judder is at the back somewhere rather than the front. It seems to come and go with no particular pattern but drives as smooth as you like at other speeds.

I first thought I had a buckled wheel but realised I would have known about this before I had new tyres fitted.

Then I thought I might have a wheel balance problem but I watched all the tyres being fitted and balanced and I can't see where they made any errors. I have also checked to see if any of the lead has fallen off.

I am starting to wonder if something is loose somewhere ?

Any clues ?

[Whitey]

Wheel balancing (easy to get wrong)
propshaft alignment/loose bolts
exhaust moving

[m3coupe]

Is this not a trait when the Geometry needs done?

[2 sMoKiN bArReLs]

Have wheel balance checked by a.n.o....tis the cheapest start point

[s6boy]

I'd have suggested the new clutch but you feel it's coming from the back. If it's intermittent less likely to be balancing if speed is constant. Could be the diff mounting being loose, would have thought this would clunk rather than judder though.

ETA: Just a thought but have all the wheels been tightened? I remember someone having a similar problem a year or so ago just after a service.

Edited by s6boy on Wednesday 16th April 13:19

[2 sMoKiN bArReLs]

What was it then Stillgrimacing?

[stillgrinning]

Shagged engine mounting changed today but still a problem - only now it's moved to around 90 mph rather than 70. Am in Bournemouth all next week so will pop in somewhere and get the wheels balanced again, as someone said, cheapest start point (although Power only charged me £31 for the engine mount and no labour because it was in for a service 2 weeks ago etc.).

Will update next week after teh balancing.

[stillgrinning]

new wheels fitted today, nearside rear buckled... everything is now hunky dory...