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Model specific boards => Golf mk2 => Topic started by: reesy on 08 January 2006, 16:22

Title: 70mph shudder !!!
Post by: reesy on 08 January 2006, 16:22
I have a '91 gti. I can boot the car to high speeds no problem, but if i am doing a steady speed such as 70 mph for a period of about 2 mins, the car starts to shudder. But as soon as i put my foot down again it stops. i thought it was the balancing but i have had that chaecked and its still there........ any ideas??
Title: Re: 70mph shudder !!!
Post by: rubjonny on 08 January 2006, 16:55
check the tyre pressures, and swap the back wheels onto the front to rule out any problems with the tyres or balancing.
Title: Re: 70mph shudder !!!
Post by: [han] on 08 January 2006, 17:06
a guy i know had a similar problem.. it was something to do with the rev counter on his... not fully sure what tho, cos i only know where to top up oil and waater.....
Title: Re: 70mph shudder !!!
Post by: bulk66 on 08 January 2006, 17:32
Have you tryed having it balanced at another garage as i once had my wheels done at one place and there balancer was out of sink so the weights were put in the wrong place and made the problem worse............
Title: Re: 70mph shudder !!!
Post by: Mart8V on 08 January 2006, 21:15
Was the wheel alignment / tracking done at the same time?  Had to get mine balanced twice after Cowboys-r-us messed it all up the first time....
Title: Re: 70mph shudder !!!
Post by: Stu-1.8T on 08 January 2006, 21:26
Also, check to see if the rubber bushes on the wishbone's are o.k. My old car had bad vibrations at 75mph, but as soon as you went over 80 it was okay.
Title: Re: 70mph shudder !!!
Post by: Bazzer on 08 January 2006, 21:37
I bet I know what it is... there should be some kinda weight attached to one of the driveshafts (the long one I think IIRC), looks like a lump that goes around the shaft, at the wheel end. If it's missing, it can cause this if you settle to a speed. And it can be any speed, not just 70... I got shown it by a mechanic ages ago, and I thought he was mad at the time.......!
Title: Re: 70mph shudder !!!
Post by: Mr Blue on 09 January 2006, 10:20
I bet I know what it is... there should be some kinda weight attached to one of the driveshafts (the long one I think IIRC), looks like a lump that goes around the shaft, at the wheel end. If it's missing, it can cause this if you settle to a speed. And it can be any speed, not just 70... I got shown it by a mechanic ages ago, and I thought he was mad at the time.......!

i dont think gti's had these but worth a check.

was about to say engine mount as mine does this too
Title: Re: 70mph shudder !!!
Post by: mallydgti on 09 January 2006, 11:01
Given that the vibration is only at constant speeds I would be more inclined to say it is a fueling or electrical problem causing a slight missfire and hence a shudder, if it was wheel balancing it would generally appear at around 50mph then get progessively worse but you can usually drive through it, i.e. no vibration at 90mph. I would check your leads, plugs, dizzy cap rotor arm etc.
Title: Re: 70mph shudder !!!
Post by: Gambit on 09 January 2006, 13:16
if its only at 70mph and its a vibration and not a misfire

then either your wheels need balanced.

or your running aftermarket alloys with the original wheels studs and no spigot rings

driveshaft balancing weight will not cause it either - trust me on this one. i looked into it a while back on my old golf. cant remember the full story but it was there for another reason of some sorts!!

Title: Re: 70mph shudder !!!
Post by: reesy on 09 January 2006, 18:58
cheers. thats a lot of info... i think Gambit could have hit the nail on the head... there is alloys on there, they were on there when i bought the car... i dont think the studs have been changed... didnt know this could cause a problem...... thanks :smiley:
Title: Re: 70mph shudder !!!
Post by: roverspeed on 11 January 2006, 00:48
mine did this, changed my studs and bushes at the same time, so could be either
Title: Re: 70mph shudder !!!
Post by: Judderi on 11 January 2006, 15:50
Its possible that you have a buckled wheel also. Although the balancing should of shown this when you had it done.
Title: Re: 70mph shudder !!!
Post by: Gambit on 12 January 2006, 13:57
you'd feel the buckle at all speeds nto just 70mph