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  1. #1
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    Powerflex engine dog bone bush?

    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

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  3. #2
    <tuffty/>'s Avatar
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    They settle down after a while...

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  4. #3
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    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

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  5. #4
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    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..

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    One of the best mods I did to my car
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  7. #6
    Dan-Jnr's Avatar
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    The red bush isn't as harsh as the yellow one.
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  8. #7
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    Yellow needs to be 12lb of torque on the main bolt or your teeth will start to fallout.

  9. #8
    Alex C's Avatar
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    what should you torque the red one to?
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  10. #9
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    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 by Schlaag; 16th May 2012 at 10:25.

  11. #10
    Schlaag's Avatar
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    Quote Originally Posted by Alex C View Post
    what should you torque the red one to?
    13mm bolts should be 20Nm.
    16mm bolts should be 40Nm.
    The compression nut should be 20Nm + 1/4 turn.

  12. #11
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    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)

  13. #12
    Metro's Avatar
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    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.

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  14. #13
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    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"

 

 

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