1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Powerflex engine dog bone bush?

Discussion in 'A3/S3 Forum (8L Chassis)' started by a3 1.8t, May 15, 2012.

  1. a3 1.8t
    Offline

    a3 1.8t Member

    Joined:
    Jul 22, 2011
    Messages:
    112
    Likes Received:
    0
    [May 15, 2012]
    My original rubber bush was past its best could feel the engine rocking when i came on and off the accellerator. I changed it today for powerflex polyurathane bush its a a3 1.8t. But it feels different car car seems to vibrate alot more if that makes sense and when i come to a junction and still moving i pull out in second before it was fine now whole car shakes.. I have only done a few miles with it in will it bed it or stay like this? I think i will put a new standard one back in if they are always like this...

    Regards Tom
    #1
  2. Ads

    Ads

    [Dec 27, 2014]

  3. <tuffty/>
    Offline

    <tuffty/> Badger 5 Edition Staff Member Moderator

    Joined:
    Sep 14, 2008
    Messages:
    16,486
    Likes Received:
    1,543
    [May 15, 2012]
    They settle down after a while...

    <tuffty/>
    #2
  4. Markeyboy
    Offline

    Markeyboy Fan of the R-Tech!

    Joined:
    Aug 24, 2011
    Messages:
    282
    Likes Received:
    8
    [May 15, 2012]
    what colour did you go for red or yellow?

    as said they do soften up a bit, have heard if you tighten up the dogbone centre bolt to much can also cause a harsher ride
    #3
  5. a3 1.8t
    Offline

    a3 1.8t Member

    Joined:
    Jul 22, 2011
    Messages:
    112
    Likes Received:
    0
    [May 15, 2012]
    haha i tightened it till i couldnt anymore really just gave it a good nip and its yellow in colour cant say i realised they were different..
    #4
  6. Wizza
    Offline

    Wizza BÜBENGRÖPEN

    Joined:
    Dec 10, 2008
    Messages:
    750
    Likes Received:
    14
    [May 15, 2012]
    One of the best mods I did to my car :)
    #5
  7. Dan-Jnr
    Offline

    Dan-Jnr Well-Known Member

    Joined:
    Jun 10, 2011
    Messages:
    1,014
    Likes Received:
    213
    [May 15, 2012]
    The red bush isn't as harsh as the yellow one.
    #6
  8. jezzy
    Offline

    jezzy Member

    Joined:
    Oct 3, 2011
    Messages:
    762
    Likes Received:
    15
    [May 16, 2012]
    Yellow needs to be 12lb of torque on the main bolt or your teeth will start to fallout.
    #7
  9. Alex C
    Online

    Alex C Well-Known Member VCDS Map User

    Joined:
    Jan 26, 2010
    Messages:
    2,816
    Likes Received:
    205
    [May 16, 2012]
    what should you torque the red one to?
    #8
  10. Schlaag
    Offline

    Schlaag Bwah

    Joined:
    Jul 10, 2007
    Messages:
    305
    Likes Received:
    8
    [May 16, 2012]
    You should have bought the red one that powerflex specify for diesel A3's. I replaced my std s3 one with the red powerflex and the car changes gear and drives much better now! Best £20 i've spent on the car I think!
    Last edited: May 16, 2012
    #9
  11. Schlaag
    Offline

    Schlaag Bwah

    Joined:
    Jul 10, 2007
    Messages:
    305
    Likes Received:
    8
    [May 16, 2012]
    13mm bolts should be 20Nm.
    16mm bolts should be 40Nm.
    The compression nut should be 20Nm + 1/4 turn.
    #10
  12. jezzy
    Offline

    jezzy Member

    Joined:
    Oct 3, 2011
    Messages:
    762
    Likes Received:
    15
    [May 16, 2012]
    clean all of the old bush out of the mount it makes a difference.
    then tighten as above, slight vibration at first (red bush) but soon settles down (200 miles or so)
    #11
  13. Metro
    Offline

    Metro Error

    Joined:
    Nov 10, 2011
    Messages:
    387
    Likes Received:
    2
    [May 16, 2012]
    I have a similar problem with my diesel bush, car vibrates a lot more, the mount was fully cleaned and torqued up correctly. The guys at the turbo unit in Tamworth suggested it could be my dual mass on its way out but that's a 'could' I won't know untill its changed.
    #12
  14. a3 1.8t
    Offline

    a3 1.8t Member

    Joined:
    Jul 22, 2011
    Messages:
    112
    Likes Received:
    0
    [May 16, 2012]
    cheers for the help. i havnt done couple hunerd miles yet soon as i have if its no better i will take it all apart again and make sure its spick and span then torque to above not torqued to "fookin tight"
    #13

Share This Page