EM TuningJMB Retrofits
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  1. #1
    MattW86's Avatar
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    Cross threaded rear suspension bolt hole help.

    Hi guys,

    As title suggests, I recently changed my rear dampers on my S3. Its seems that the passenger side bolt hole on the trailing arm has only got a couple of threads useable which the bolt just cant get a bite on.

    Would I be best buying a 2nd hand trailing arm off of ebay or will this repair kit do the job?

    25714030000 | AMAFASTENERS Ltd. (UK)

    My main question with the kit is the fact it states for M14x1.5 when the bottom bolt is M14x1.

    All advice and opinions welcomed

    Matt

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  3. #2
    A3 TQS

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    It is M14x1.5 if this is the bolt your referring too, No.5 in this picture AUDI A3/S3/SPORTB/QU. [A3] (MEXICO) 2001: REAR AXLE: 51115. SUSPENSION; SHOCK ABSORBERS

  4. #3
    MattW86's Avatar
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    Thats the bolt im having diffs with. I must of read the type wrong. Do you think that kit would do the job?

    Thanks
    Matt

  5. #4
    Broken Byzan's Avatar
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    drill through and use a longer bolt with a nut

  6. #5
    A3 TQS

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    I've used plenty of helicoils, but usually for replacing knackered threads in aluminium and never on anything critical like that so wouldn't like to say, If drilling through and using a locking nut is an option, then I'd be happier with that I think.

  7. #6
    Vex182's Avatar
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    I've had to use a nut and bolt on one side of mine.
    Silver 2002 Audi S3 225 (BAM) since March 2011.

    Mods: Badger5 2.2 TIP, Jetex filter, PCV delete, 710 DV, Standard N249 in use, R-Tech Stage 1 TiV Remap, Audi TT Pedals, Red Dogbone, Polybushed tie arms. All silicone boost pipes, Michelin PS3s, Red V6 coil packs, MK4 flat blade conversion, retrofited cruise control.
    Currently: 254bhp - 276lb/ft (174bhp/ton) as of 11/02/2013 On V-Power

  8. #7
    4th Gear

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    Just get a longer bolt and nut, you won't need to drill it.

    The only thing you need to worry about is making sure it's at least a 10.8 HT bolt (and nut) and you can always cut it down if it's too long.

    I've had to do my passenger side too.
    Audi S3 - 2002MY - Denim Blue - Gone
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  9. #8
    MattW86's Avatar
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    Cheers for the replies, i have ordered a couple of 100mm and 110mm bolts with some nylock nuts.

    Would you recommend using some loctite as a precaution?

    Matt

  10. #9
    2nd Gear

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    no need for loctite the nyloc nut will be fine

  11. #10
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    HI Matt ,
    Just read your post . I had the same problem when fitting my B8's managed to cross thread the hole , resolved it to , by using
    the same bolt from the other side of the hole . Clean the threads up first with a thread file and plenty of squirt and it can be wound in
    from the back , go slow and draw the bolt in and out a few times . Giving you a clean thread to start again . All assuming the bolt is'nt too dammaged . Or could be done with a new bolt . Good luck

    Cheers Ant

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    You'll also need to whip the caliper and carrier off that side for better access , but it is do able

  13. #12
    MattW86's Avatar
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    Cheers for the replies guys, Ant i might give that a try while im waiting for the longer bolts to arrive.

    Matt

 

 

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