1st Gen R53 Cooper S Today's Job

Discussion in '1st Generation: 2002–06 R50, R53 & 2004–08 R52' started by k-huevo, Dec 21, 2010.

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  1. Alan

    Alan Active Member

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    Should be dropping off 2003 S this afternoon.
     
  2. Alan

    Alan Active Member

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    #102 Alan, May 5, 2011
    Last edited: May 6, 2011
    I don't think an SC should make this noise. :eek:

    SC knock

    This one is already on its way back...
     
  3. mini_racer

    mini_racer Well-Known Member

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    So, I don't even know what I'm looking at in the video? Sounds like it could make some noise though.
     
  4. k-huevo

    k-huevo Club Coordinator

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    #104 k-huevo, May 5, 2011
    Last edited: May 6, 2011
    Probably one of the nose gear cogs is snaggle toothed. The pulley rotates a quarter turn in either direction before the gear engages. When idling the supercharger sounded like large chunks of ice knocking around in a blender. Much of the lobe coating was missing also.
     
  5. Vernon29RW

    Vernon29RW New Member

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    WOW Keith you really do great work! Why cant someone like you be located in the NY area!?!? I've been having problems with my car for a while now and was recommended a BMW mechanic that does work on the side and so I dropped it off to him without hesitation and the end result was less than I was expecting. $1500 and the car is still displaying the same symptoms it came in with!!! GRRR

    Thank you for sharing so much with us! Like others have said you get to see things most of us hope we never have to see but none the less invaluable information to read about and be cautioned towards.

    Thanks,
    Steve
     
  6. Metalman

    Metalman Well-Known Member
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    Hey Steve....
    Consider a little vacation time down in Pipe Creek, Texas. And while you are sunning yourself, Keith can look over your MINI.
    Just something to think about....
     
  7. Redbeard

    Redbeard JCW: because fast is fun!
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    Not 100% sure but there is a chance that I might move to Austin, TX at the beginning of next year. First thing I did was check out how far a drive to Keith's shop it is from Austin. :D
     
  8. Alan

    Alan Active Member

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  9. Redbeard

    Redbeard JCW: because fast is fun!
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    [SARCASM FONT]You mean those little balls aren't supposed to be loose?[/SARCASM FONT]

    Yipes man. Hopfully that got remedied before any other major damage occured.
     
  10. Alan

    Alan Active Member

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    Yes, thankfully.

    The stock flywheel, clutch disc, and pressure plate are in great shape. Except, of course, for the fingers the release bearing was pushing against.

    They are sitting on a shelf in the garage in the OSGiken box.
     
  11. Redbeard

    Redbeard JCW: because fast is fun!
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    That is the right answer! :Thumbsup:
     
  12. k-huevo

    k-huevo Club Coordinator

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    I installed an AST 5100 kit in an R56 today, the Vorshlag camber plate was originally installed on an R53. Using the original bearing and spring hat, I attached a new Vorshlag R56 base plate. The new bases are made of aluminum, and anodized an attractive shade of red; they weigh much less than the former steel stock. They also have reference lines the old plates lacked.

    [​IMG]
     
  13. k-huevo

    k-huevo Club Coordinator

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    Today's Job #8

    The project started as a turbo replacement on a JCW R56; the second replacement BTW. The first issue I came across was a loose O2 sensor; evidence of exhaust blow-by on one side, and a very white sensor.

    [​IMG]


    After the heat shield came off, a crack in the downpipe was uncovered.

    [​IMG]
    [​IMG]


    With the turbo removed, a crack in the exhaust manifold could be seen.

    [​IMG]
    [​IMG]
     
  14. Redbeard

    Redbeard JCW: because fast is fun!
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    Is this on the OEM tune or an aftermarket tune?
     
  15. k-huevo

    k-huevo Club Coordinator

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    An aggressive aftermarket tune was on for almost a year; recently detuned, and AP stage 1 loaded a few weeks ago.
     
  16. mini_racer

    mini_racer Well-Known Member

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    I thought the aggressive tune on this car was only installed for about 5 months?
     
  17. k-huevo

    k-huevo Club Coordinator

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    If you prefer "several months" rather than "almost a year",OK; October 16 was the date.
     
  18. Redbeard

    Redbeard JCW: because fast is fun!
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    Interesting. Do you think the cracking would have happened if they had stayed with the OEM tune?
     
  19. Metalman

    Metalman Well-Known Member
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    Second turbo replacement... What is causing the turbo's to fail, needing replacement?
     
  20. k-huevo

    k-huevo Club Coordinator

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    #120 k-huevo, May 30, 2011
    Last edited: May 30, 2011
    It's hard to tell for sure, high EGT is apparent, but as for the exhaust manifold the crack could have been the result of a casting fault. The support brackets were loose on the downpipe, and the turbo support was tweaked; could have been vibration stress that caused the downpipe crack. A tuning professional who looked at the first map used the word "aggressive" to describe what he saw, and later assessed "...it seems like it has the possibility of being too much for track or street..." when I asked about engine safety concerns, so indeed the stock tune could possibly have helped avoid component failure.

    I don't know the answer for certain. The first core is gone, so it can't be inspected. The owner is keeping the second core and another local R56 JCW owner with a failed turbo kept his core. When these are rebuilt, we'll have a better idea. One thing out of the ordinary preceding the recent failure was excessive oil in the output side.
     

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