Shaved top mounts ??

Discussion in 'E90 Saloon / E92 Coupe / E93 Convertible M3 (2008-2013)' started by M2Nel, Sep 10, 2019.

  1. 10 Sep 2019 at 5:58 PM #1
    M2Nel

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    Any idea where to get these?

    Does anyone know whats involved in the modification process as i might just get mine altered ?

    Is ebay the best place for E36 bump stops?
     
  2. 11 Sep 2019 at 3:33 PM #2
    hakhan22

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    I'm keen for a set too if anyone knows where to find these, thanks in advance
     
  3. 11 Sep 2019 at 9:05 PM #3
    M2Nel

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    Been having a look at some photos and it doesnt look to difficult (I Imagine) to machine them myself. From what i can see its just the last smaller section thats been reduced.
    [​IMG]
    [​IMG]
     
  4. 11 Sep 2019 at 9:07 PM #4
    hakhan22

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    Are these the front mounts?

    Dont you have to shave the rears too?
     
  5. 11 Sep 2019 at 9:18 PM #5
    Deep pan

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    I've been thinking whats the best way to do this also.
    Youd need to lock the bearing in place without damaging it (the bit I'm stumped on, if you have an idea, please do share, I'm all ears!), then its how to get a nice cut on the rubber as well as the steel. The only thing I can think of is dry ice them first so the rubber chips away rather than melting.

    Hak han, yes they are the front, the rears are fine I believe.
     
  6. 11 Sep 2019 at 9:37 PM #6
    hakhan22

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    If you changed your springs to comp pack you would get a 10mm drop at the rears too so presume they would also need shaving no?
     
  7. 11 Sep 2019 at 10:06 PM #7
    M2Nel

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    So thats a bearing that spins?? i imagined it to be solid
    My guess would be to tape around the rubber for a guide then use a hacksaw to cut through the rubber down to the metal. Expose the metal to be removed. Cut the metal back level with the rubber with a 1mm disk
     
  8. 11 Sep 2019 at 10:49 PM #8
    Deep pan

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    Yes, there will be a central bearing for the steering to pivot.
    I was thinking more along the lines of putting them on the lathe to be accurate and so the face of the cut perfectly is square, possibly milling would do, but the lathe would be better I think.
    Dry ice the rubber first and you'd get a nice clean cut, after that the steel is not a problem. It's just that pesky bearing that will stop it cutting in either instance so need to lock it up without causing damage.

    Hakhan, I honestly don't know. I've never really looked into it all, I presume there is already sufficient clearance on the rear.
     
  9. 12 Sep 2019 at 9:32 PM #9
    M2Nel

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    Just had a good look on Google for E36 M3 bump stops and cant find anything, so looking like the originals will get cut down too
     
  10. 13 Sep 2019 at 9:02 AM #10
    hakhan22

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  11. 13 Sep 2019 at 9:24 AM #11
    M2Nel

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  12. 13 Sep 2019 at 9:29 AM #12
    hakhan22

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  13. 13 Sep 2019 at 8:57 PM #13
    M2Nel

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  14. 14 Sep 2019 at 1:41 AM #14
    hakhan22

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    Could give our friends down at Cotswolds a call they seem to beat everyone for prices!
     
  15. 15 Sep 2019 at 3:01 PM #15
    Deep pan

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    Just thinking about these top mounts, they would be doable if I made a jig to sit them on... but the only benefit I can see is that it lowers the car an additional 10mm (or however much they are shaved by), there are no travel benefits..the shorter bump stops take care of that.
     
  16. 15 Sep 2019 at 3:04 PM #16
    me32dc

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    No the spring sets the height, this allows you to use a lowering spring but keep the shock at near full travel length.
     
  17. 15 Sep 2019 at 3:14 PM #17
    Deep pan

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    Scratch that! Just looked at the diagrams on real oem and all is now clearer. Yes extra travel.. I've never seen the upper spring cup integrated to the mount, they usually have a seperate cup that bolts to the bottom where the rod mounts to.
    Now I've seen the diagram, this should be a doddle! Looks like the spring cup/perch is the piece with bearing, not the rod mount, is that correct?
     
    Last edited: Sep 15, 2019
  18. 17 Sep 2019 at 8:14 PM #18
    M2Nel

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    Are you any further on with your Jig idea?
     
  19. 17 Sep 2019 at 8:27 PM #19
    Deep pan

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    Not yet mate. Been really busy with work. I need to get hold of an old top mount first to progress any further. I'll take a look on the bay!
     
  20. 17 Sep 2019 at 8:34 PM #20
    M2Nel

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    Getting hold of another top mount would be ideal if you can find one:)
    I have read that cutting down the original bump stops isnt a good idea, so i am just about to email Cotswolds for a couple of the E36s
     

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