Rod Bearing choice

Discussion in 'E90 Saloon / E92 Coupe / E93 Convertible M3 (2008-2013)' started by ian1811, Jun 28, 2019.

  1. 3 Jul 2019 at 11:03 PM #21
    Gecca

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    Hit me up with where you purchased these pleaseee
    Looking ACL bearings and Apr bolts. Thanks
     
  2. 4 Jul 2019 at 9:00 AM #22
    mattitbo

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    Areeve does these I think
     
  3. 4 Jul 2019 at 9:12 AM #23
    Raif

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    Hindsight is a wonderful thing! Although it didn't "blow". 80k and 6 owners it had excessive wear on cyl 8 bearing and BMW GmbH gave me a nice new engine for their sins. I'll be aiming to get 180k out of this one :beer:

    Can I put you down for an order?

    P.S. Let me know when you've reached 80,000 miles on your drag racing bearings :thumbsup:
     
    Last edited: Jul 4, 2019
  4. 4 Jul 2019 at 11:08 AM #24
    Ant Man

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    Before anyone uses BE Bearings do some careful and thorough research. Who exactly are they? When did they start? How many types of bearing do they make? Who started all the bearing scare stories on m3post?
     
  5. 4 Jul 2019 at 3:22 PM #25
    Helmsman

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    Hahaha! Many thanks for your offer mate, but I'll take my chances and stick with my in comparison tiny extra clearance! So far so good but sure I keep listening worried and thinking "will the suckers still blow..?".
     
  6. 5 Jul 2019 at 11:29 AM #26
    Raif

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    I'm sure it will be fine. As long as its owned by someone who takes proper care :thumbsup2:
     
  7. 16 Jul 2019 at 2:12 PM #27
    Gecca

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    Anyone know where I can purchase acl bearings and Arp bolts as a package? Many thanks
     
    Last edited: Jul 16, 2019
  8. 16 Jul 2019 at 4:04 PM #28
    Mr Reeves

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    As a package, I'm not sure. But you'll find many suppliers who sell them separately. Martin @ MS Motorsport being your best bet.
     
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  9. 16 Jul 2019 at 4:21 PM #29
    dsme

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    Bought ACL bearings and ARP bolts from @trackm3
     
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  10. 16 Jul 2019 at 5:48 PM #30
    Gecca

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    @dsme mind me asking how much the set was? Pm if you don't wanna disclose on here.
    Thanks
     
  11. 17 Jul 2019 at 9:25 AM #31
    dsme

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  12. 17 Jul 2019 at 12:34 PM #32
    Gecca

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    @dsme legend. Thanks
     
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  13. 17 Jul 2019 at 2:00 PM #33
    GeeMan

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    Where is the best pace to buy OE everything? Cotswolds?
     
  14. 17 Jul 2019 at 2:36 PM #34
    REU M3

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    Hi All,

    1. what is the high-level cost for this work, parts + labour ?
    2. what are the symptoms that make the case for this work ?

    I have a 2 owner 2008 E93 with 33k... want to get a view of preventative vs. required works carried out!

    Many thanks,
    Charan
     
  15. 17 Jul 2019 at 4:08 PM #35
    djcla

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    Wondering the same as was thinking of combining with the cars next service some time next summer and might be better to provide my own but not sure what parts i need to ask for .
     
  16. 17 Jul 2019 at 7:04 PM #36
    Vish8895

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    Sorry for the delay, been rather busy with work!

    So as promised, here are the oil analysis results along side the rod bearings.

    The first report was taken at ~66.9K miles. The oil was 9 months old and had covered 4.6K miles.
    As you can see, there are no alarmingly high traces of copper or lead or any alarmingly high values really:
    [​IMG]

    The second report was taken at ~69.3k miles, less than 100 miles before the rod bearings came out. This was the same oil as above, so was now 15 months old and had covered ~7K miles. To note, I had not needed to top up the oil since the above sample was taken, other than to replace the 80ml that was taken, so there is no chance of these results having been jeopardised due to watering down the sample.
    You can see that in this ~2.5k miles, the lead has increased from 8ppm to 14ppm, but the copper has stayed level. Interpret that however helps you sleep at night lol!
    [​IMG]

    So to the hard evidence, the rod bearings. Aston at Evolve was very kind to talk me through the process prior to taking possession of the car, and did a thorough hand over and explanation post pickup. He explained that thankfully they weren't bad enough to have damaged the crank yet, so no issues there!
    Make what you will of these :p:
    [​IMG]
    [​IMG]

    And here are some pics of my beauty just because I like showing her off lol :muttley:

    [​IMG]
    [​IMG]
     
  17. 17 Jul 2019 at 7:36 PM #37
    Helmsman

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    Wow they don't look happy Vish. Congrats on replacing those shells in time.
     
  18. 17 Jul 2019 at 10:33 PM #38
    Vish8895

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    Cheers!

    It's tricky. In person they felt smooth and I didn't see any obvious imminent failure. For all I know they'd of lasted another 30k miles of normal driving.

    That being said, my car had just passed an MOT with 0 advisories, had new tyres, new BMC air filter, new spark plugs, brakes were good and engine was healthy, so £1400 on rod bearings seemed a no brainer seeing as the car needed nothing else... :muttley:
     
  19. 19 Jul 2019 at 10:36 AM #39
    GeeMan

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    Does anyone ever measure the thickness of the bearings when they take them out compared to when new? I'd love to see this information! And how much wear / depth does it take for the copper levels to start showing?

    Funny how no of the companies doing the swaps share this information!!!!
     
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  20. 19 Jul 2019 at 1:20 PM #40
    Vish8895

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    It is an interesting question!

    My confusion is, it seems 99% of threads are of people "spinning" shells. I dont get what wear on the main face of the bearing has to do with spinning a shell?

    In the Evolve rod bearing video, they state that the shells spin when the location tabs become worn/degraded... So how does wear on the main part of the bearing indicate how close the bearing was to spinning?
     

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