Engine Drivetrain 1st Gen Cooper S Most liked posts in thread: GNAT - The Resurrection

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  1. Rixter

    Rixter Well-Known Member

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    #77 Rixter, Mar 3, 2012
    Slightly modded...NOT! :D
     
  2. RCman

    RCman New Member

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    #80 RCman, Mar 5, 2012
    Sorry to hear
    Good luck Nate

    Sent from my DROIDX using Tapatalk
     
  3. DneprDave

    DneprDave Well-Known Member
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    #81 DneprDave, Mar 5, 2012
    Are you going to blueprint the block while it is out at the machine shop?

    Dave

    Sent from my keyboard by pounding on it with my fists :p
     
  4. Jason Montague

    Jason Montague New Member
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    #83 Jason Montague, Mar 6, 2012
    :cornut: How about: 2 WEEK(or however long) OEM TRANSPLANT SURVIVOR. :Thumbsup:

    Jason
     
  5. Nathan

    Nathan Founder

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    #84 Nathan, Mar 6, 2012
    News from the machine shop...

    Runout in the bore is 3 thousandths. This means that my speculation of out of round cylinders is correct. Also shows us why the ring gaps keep trying to align themselves.

    To fix this the cylinders will be bored true. I'll need a set of over-sized pistons. I've not given thought to the brand as of yet. That's something I'm going to need to look into and quick like too...

    The crank has a some scoring on it, ya'll saw that one bearing that was about to go, it's not a surprise. It will be reground to remove the scoring. This will require a set of over-sized bearings. MINI does does make these so that is not a problem.

    The head also has some issues. All the exhaust valves are leaking. These were all just replaced about 22K miles ago. I'm thinking the last machine shop did not get it right. Oh well, that's done and over. Recourse with them is just not worth the effort. Won't know if any of the valves need replacement till the head is torn down.

    So how did this happen?

    This engine has had two overheating events. The first was just after AMVIV in 2007 when climbing the hill outside of Vegas on my way to California. Being as it was about 15k miles after that event when the first fix was done to re-ring cyl 1 as the gaps had aligned on the rings I'm going with that was the event that put all this in motion. The bore was checked then but not to the level is was now. The engine was not pulled then. The measurement was all done in place. It's quite possible that it was just barely out of round at the time and not picked up.

    The second overheat event was after I was already seeing misfire code on Cyl 2 already. It may have contributed some but I feel the initial damage was done quite some time ago.

    And that folks is where we stand right now...

    Stay tuned for more.
     
  6. ScottinBend

    ScottinBend Space Cowboy
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    #85 ScottinBend, Mar 6, 2012
    One word..........

    Motor Medic



    :biggrin5:
     
  7. ScottinBend

    ScottinBend Space Cowboy
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    #87 ScottinBend, Mar 6, 2012
    picky....picky....picky
     
  8. Redbeard

    Redbeard JCW: because fast is fun!
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    #88 Redbeard, Mar 6, 2012
    Yeah... So, I know it isn't your style Nathan but my muscle-car background came out and this sig line came to mind: "Yep, blown and stroked. My MINI loves me. :D"
     
  9. Nathan

    Nathan Founder

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    #90 Nathan, Mar 6, 2012
    Not stroked but bored.

    Piston height and compression ratio stay the same. The bore is increaded 0.20. If my maths are correct the engine is growing from 1598cc to 1603.08 cc.
     
  10. Metalman

    Metalman Well-Known Member
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    #92 Metalman, Mar 6, 2012
    Nathan... I believe it's 0.020" over, not 0.20"...:D
     
  11. Detroit Tuned

    Detroit Tuned Well-Known Member
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    #93 Detroit Tuned, Mar 7, 2012
    ^^^ Yes. :)
     
  12. agranger

    agranger MINI of the Month June 2009
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    #94 agranger, Mar 8, 2012
    I like the 0.2 better... go big or go home!
     
  13. Jan

    Jan Well-Known Member
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    #95 Jan, Mar 8, 2012
    just being able to "go home" is the goal here:wink:
     
  14. ScottinBend

    ScottinBend Space Cowboy
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    #97 ScottinBend, Mar 8, 2012
    BVH/cam ! ! !
     
  15. Jason Montague

    Jason Montague New Member
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    #100 Jason Montague, Mar 8, 2012
    :cornut: That's our Nathan, Fair and Balanced. WOW! you could go to work for 'Fox News.':devil::ihih::lol::Thumbsup:

    Jason
     
  16. Crashton

    Crashton Club Coordinator

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    #101 Crashton, Mar 8, 2012
    Nathan did the same person build the bottom & top end of your engine? Or did you have the misfortune to find two guys who are not so good at what they do?
     
  17. Nathan

    Nathan Founder

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    #102 Nathan, Mar 8, 2012
    It was one person.

    It's done, it's over and I'm moving on.

    I've also decided not to renew that shops Local Shop listing here on M/A.
     
  18. Jason Montague

    Jason Montague New Member
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    #103 Jason Montague, Mar 8, 2012
    :cornut:Not even a hint for the unsuspecting slob (consumer) who may enter that shop tomorrow with their last $1000:frown2:? I don't want to cause a $hi+ storm but how about:idea::
    1.Texas- Yes/No, if yes:N,S,E,W, or central, city maybe?
    2.Other State?
    3.East Coast, West Coast, Gulf Coast, Middle America?

    "vee have vays of making you tock":ihih::lol:

    Jason
     
  19. Crashton

    Crashton Club Coordinator

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    #104 Crashton, Mar 8, 2012
    Nathan I don't want to know who did the FUBAR job, just wondering if there were multiple suspects. I was not trying to dredge bad memories up for you. :eek:
     
  20. Jason Montague

    Jason Montague New Member
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    #105 Jason Montague, Mar 8, 2012
    :cornut: I GOT IT! He's still in the threads but no longer on the sponsor list. I never would have guessed it would have been him:eek6::frown2:. Well since I like being a member of this here forum and Nathan runs the forum and he won't tell, I'm forced to keep mum. SORRY GUYS:frown2::frown5:

    Jason
     
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