Author Topic: Help. Juddering 8V Digi  (Read 1935 times)

Offline Quattro100

  • Not said much yet
  • **
  • Posts: 18
Help. Juddering 8V Digi
« on: 26 December 2008, 15:35 »
Dear all,

I am looking for help with a small problem I have with my 92 8v digifant.

The car is standard under the bonnet apart form a performance filter. It appears that the vacuum pipes that normally run to the filter have been sealed up (not sure how successfully).

My problem is that the car judders quite violently at low engine speed in first gear. It seems a lot better when I get the car into second but there is a slight judder under acceleration.
However I can pull away fine and the car behaves very well in all other circumstances.

Could this be a leak from the vacuum pipes, or is it more a tuning issue?

Thanks for any help.

Regards
Will

Offline Dolly

  • I live here
  • *****
  • Posts: 721
Re: Help. Juddering 8V Digi
« Reply #1 on: 26 December 2008, 16:16 »
maybe the idle is set a little low, could try and turn it up abit. any leaks in the vacuum system will lead to poor idle for sure maybe worth getting hold of a standard airbox?

Offline 16vLeroy

  • GTI forum regular
  • ***
  • Posts: 107
  • Grr bloody car, if everything was as reliable as a
Re: Help. Juddering 8V Digi
« Reply #2 on: 26 December 2008, 17:13 »
Open the bonnet and rock the engine backwards and forwards, sounds like the front engine mount is sh****d!!!

This is a classic Mk2 problem, replace it with a solid/vibratechnics on if you are giving the car some beans all the time, if not standard one is fine (genuine one will last longer....).  :smiley:

Offline Ben Lessani

  • I live here
  • *****
  • Posts: 3,873
  • The poor mans MK2 Haynes author
Re: Help. Juddering 8V Digi
« Reply #3 on: 26 December 2008, 19:21 »
rock the engine backwards and forwards, sounds like the front engine mount is sh****d!!!
If you can rock it with your hands, its seriously boned. A better way to test is to have someone raise the clutch with the handbrake on, then you can observe and movement in the engine.

Offline shadymofo

  • Not said much yet
  • **
  • Posts: 20
Re: Help. Juddering 8V Digi
« Reply #4 on: 04 January 2009, 17:20 »
i had the same problem with engine judder in 1st gear..had to replace the mounts,i did not get the good vibratechnic 1s out of my budget lol but the 1 i got are good enough for now

Offline DarnPB

  • I live here
  • *****
  • Posts: 1,958
  • Formerly Darnpistonbroke
Re: Help. Juddering 8V Digi
« Reply #5 on: 05 January 2009, 08:18 »
Clutch plate warped? When was the clutch last replaced?


THE FORUMS NUMBER ONE ANTI-FOOTBALL FAN!!!

Offline Quattro100

  • Not said much yet
  • **
  • Posts: 18
Re: Help. Juddering 8V Digi
« Reply #6 on: 01 February 2009, 00:42 »
Thanks to one and all I am almost certain that the problem is the front mount.

Vibra technics recommend or not?

For something like mount I was going to go for the stock VW item if available?

Any views much appreciated.

Will

Offline OakeyDoak16v

  • I live here
  • *****
  • Posts: 1,063
Re: Help. Juddering 8V Digi
« Reply #7 on: 01 February 2009, 03:07 »
Stock. Dont waste your money. If your engine is stock then thats the route to follow. Stock all the way. :cool:

Offline rubjonny

  • 10k hero
  • *
  • Posts: 16,349
  • Hello, my name is John and I'm a dub addict.
Re: Help. Juddering 8V Digi
« Reply #8 on: 01 February 2009, 09:31 »
I had a similar problem on my digi when the mixture was way too lean, it wasnt a constant problem but when driving at a constant speed it would sometimes kangaroo along, a burst of right foot usually sorted it tho.
Hello my name is John and I'm a dub addict.

Offline Quattro100

  • Not said much yet
  • **
  • Posts: 18
Re: Help. Juddering 8V Digi
« Reply #9 on: 01 February 2009, 11:20 »
Thanks I will go the stock route.

Excessive movement is how much. There will for sure be a little. And is it worth replacing rear mounts while I'm at it.

I don't think that it is the mixture but will prob go for a re tune once ready.

I am passing the car to her i doors as a daily runner. She will be stepping back 12 years from current car.
If there is a car this could work with it is a Mk 2!

Thanks