ECMlink Car bit the dust, log attached. What happened?

Posted by 1990TSIAWDTALON, Sep 10, 2017

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  1. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

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    Joined Nov 14, 2013
    Independence, Kansas
    So my boys and I headed to a car show yesterday a few miles away to "represent DSM's" and going down a hill just driving, car felt fine just toodling along, when it just died and that was the end of it. Compression is gone. I logged the drive since we were tuning idle and cruise on a new set of injectors waiting in line for a pro tune. Tell me what any of you see and suggestions. Since it was driving pretty good I didn't see the WB go fat or know why, I only saw it on the log after getting the car home. Car bites the dust at around 514 seconds on the log.
    Thanks all, it's a real bummer so I could use good constructive input on testing washed out rings or other loss of compression problems. No milkshake oil, coolant still up and oil pressure was still 70 lbs when it was dead but still rolling over as I was going down a big hill. She quit rolling over as soon as I pushed in on the clutch. Starter rolls it over and obviously no compression at all. Motor might have 6k on it...maybe less.
    Appreciate any and all comments, just keep them on the subject.
    See log.
    Marty
     

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    Attached Files:

    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
  2. Vegas smith

    Vegas smith Proven Member

    1,427
    517
    Joined Dec 2, 2002
    Houston, Texas
    I'm not sure what to make of this but your o2 voltage stops cycling and then shortly after that your wideband afr starts plummeting to nothing.

    edit: sorry, glanced over the part where mentioned the wideband.
     
    Last edited: Sep 10, 2017
    My DSM:
    1993 Eagle Talon TSi AWD

    Street Build

    16g   manual
    1992 Eagle Talon TSi AWD (sold)

    16g   manual
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  3. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

    2,516
    671
    Joined Nov 14, 2013
    Independence, Kansas
    Thanks Vegas. It is a brand new sensor for the record also. Going sooo rich and not noticing it was probably what killed her but just going down a hill under no load, really, I was happy and then......nothin. It was hard to notice it wasn't running I was going down such a steep hill. My oldest son said there was one poof of white smoke and thought I was going to get into boost but that wasn't the case.
    The mind is willing but the body is soft and squishy and not liking the idea of doing it all over again. The old man is feelin old and no shop to put her in.
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
  4. 19gsx91

    19gsx91 Proven Member

    794
    214
    Joined Apr 20, 2011
    Walworth, New York
    Timing belt failure? have you pulled the cover off and checked yet Marty?
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    Street Build

    292 whp   264 lb/ft
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    GST with PSI likes this.
  5. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

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    Independence, Kansas
    Oh yeh Doug I don't run a top cover on the race car. Its all turning. It sucks. Sooo my friends, how to tell if I washed the rings or just had a HG go before I pull it all apart? It sounds horrible hearing a dsm just roll over with a starter and not 200 psi of compression.
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
  6. 19gsx91

    19gsx91 Proven Member

    794
    214
    Joined Apr 20, 2011
    Walworth, New York
    Hrmm.I only get like 140-150psi across the board >_< LOL because stock block @106k. there's no compression on any cylinder?
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    Street Build

    292 whp   264 lb/ft
    Loading...
  7. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

    2,516
    671
    Joined Nov 14, 2013
    Independence, Kansas
    I'll give hard #'s asap. Had to just get her back to her place in the drive and prepair. Spun it over just a bit ago and its a sad sound of just spinning.
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
    19gsx91 likes this.
  8. 19gsx91

    19gsx91 Proven Member

    794
    214
    Joined Apr 20, 2011
    Walworth, New York
    Just strange to me you say it's free spinning but your timing belt is still there.. unless...... hmm. do you have adjustable cam gears? are the bolts tight?
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    Street Build

    292 whp   264 lb/ft
    Loading...
  9. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

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    Joined Nov 14, 2013
    Independence, Kansas
    Hahaha i didnt look since I was in the car. Just watched it all. My help had to go to work so another day I guess.
    A picture is worth a 1000 words so a 17 second video says alot.....

    Thanks
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
  10. iceguru1114

    iceguru1114 Proven Member

    97
    122
    Joined Nov 24, 2014
    Indianapolis, Indiana
    If the engine is still timed and it a compression issue, there are only 3 things it could be:

    1) You lost seals on the piston side (rings or, cylinder walls, or much less likely, holes in the piston)
    2) You lost the head gasket
    3) You lost the seal between the valves and the seats somehow

    Based on the white puff of smoke and the fact that it's still timed and turning over, my money is on head gasket. Let us know how it turns out.
     
    My DSM:
    1992 Mitsubishi Galant VR-4

    Autocross Build

    14b   manual
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    1990TSIAWDTALON likes this.
  11. donniekak

    donniekak DSM Wiseman

    4,226
    585
    Joined Mar 23, 2008
    Surprise, Arizona
    You have bent valves.
     
    My DSM:
    1991 Eagle Talon TSi AWD

    Street Build

      manual
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    1990TSIAWDTALON likes this.
  12. doubleclutch

    doubleclutch Supporting Member

    568
    107
    Joined Jun 26, 2009
    Canton, Michigan
    Check that it is timed correctly. Belt could have jumped and mashed everything.
     
    My DSM:
    1998 Mitsubishi Eclipse GSX

    Street Build

    16g   manual
    1996 Mitsubishi Eclipse GST (sold)

    T25   manual
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    1990TSIAWDTALON likes this.
  13. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

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    Joined Nov 14, 2013
    Independence, Kansas
    I can and will check it all, thanks fellows. It made no noise at all at the time and just felt like I turned the key off. Appreciate the time on diagnosis before I pull it.
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
  14. amsrn13

    amsrn13 Proven Member

    1,469
    335
    Joined Dec 1, 2013
    danbury, Connecticut
    damn man, this sucks. The motor is turning over faster than is does with the plugs out. I would say you have a mechanical failure in the shortblock or head. You pulled the plugs and they were intact? Im really curious, how hard were you pushing the motor?
     
    My DSM:
    1992 Eagle Talon TSi

    Street Build

    GT35   manual
    Loading...
  15. iugrad92turbo

    iugrad92turbo Proven Member

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    Joined May 22, 2007
    Kalamazoo, Michigan
    Damn man that sucks.
     
    My DSM:
    1991 Eagle Talon TSi (sold)

      manual
    Loading...
  16. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

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    Joined Nov 14, 2013
    Independence, Kansas
    I'm taking my time because it sickens me but I was just normal driving and very softly. If I were hammering on her maybe I would understand the whole thing more. Thanks for asking. Plug check, compession #'s if any and bore scope tomorrow (if I feel like it). :thumb:
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
  17. 19gsx91

    19gsx91 Proven Member

    794
    214
    Joined Apr 20, 2011
    Walworth, New York
    Keep us updated Marty, guessing something happened with the timing belt/tensioner area.. no good.
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    Street Build

    292 whp   264 lb/ft
    Loading...
  18. donniekak

    donniekak DSM Wiseman

    4,226
    585
    Joined Mar 23, 2008
    Surprise, Arizona
    No need for a bore scope. Take off the valve cover and look at the rockers laying there loosely because the valves won't close all the way.
     
    My DSM:
    1991 Eagle Talon TSi AWD

    Street Build

      manual
    Loading...
    19Eclipse90 likes this.
  19. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

    2,516
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    Joined Nov 14, 2013
    Independence, Kansas
    Will do, thanks for the tip just to make it easier!
    Doesn't expalin why but will at least show the result.
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
  20. zedicus

    zedicus Proven Member

    340
    50
    Joined Aug 4, 2011
    Garden city, Kansas
    im sure you know but i am just talking myself through this sadness more than anything.

    i have seen these cars run with trashed head gaskets and 60% difference in compression. so ruling out head gasket issue, a bad headgasket would still have some compression somewhere.

    i am wondering if rocker arms popped out or lifters locked. you do seem to have free spin, but there is usually terrible noise too if something went so sideways that you mangled the valves. heck the last one i got that the kid munched the valves the motor wouldn't spin all the way over period. and the tapping noise seems to be under the valve cover, not deeper.

    pulling the valve cover, will gain a lot of info, and if you have a bore scope, wouldn't hurt to look.

    good luck, let us know what you discover.
     
    My DSM:
    1995 Eagle Talon TSi

    Street Build

    16g   manual
    Loading...
  21. joemamma

    joemamma Proven Member

    231
    33
    Joined Jan 26, 2017
    williston, North Dakota
    sad to hear it man
    i hope it is not too bad
     
    My DSM:
    1992 Mitsubishi Eclipse GSX

    Drag Race Build

    16g   manual
    1994 Eagle Talon TSi AWD

    Street Build

    T25   manual
    Loading...
    iugrad92turbo likes this.
  22. LV-DSM

    LV-DSM Supporting Member

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    0
    Joined Oct 6, 2002
    Easton, Pennsylvania
    This is similar to what happened when my crank pulley separated. Same catastrophic results. Hope you get this figured out.
     
    My DSM:
    Loading...
  23. iugrad92turbo

    iugrad92turbo Proven Member

    10,233
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    Joined May 22, 2007
    Kalamazoo, Michigan
    let us know what the results are when you can.
     
    My DSM:
    1991 Eagle Talon TSi (sold)

      manual
    Loading...
  24. 1990TSIAWDTALON

    1990TSIAWDTALON Proven Member

    2,516
    671
    Joined Nov 14, 2013
    Independence, Kansas
    Thank you ALL. At the least a picture of the valve cover off and maybe a short video today. Pictures for sure. Dad is in the hospital so priorities are not on the beast but 5 min's to take the VC off and let me and all of you friends of mine know what I see. I do really appreciate you all. I thought maybe my tuning did something to the motor but all signs point to mechanical failure of some sort.
    Pics after 3pm.....
     
    My DSM:
    1992 Eagle Talon TSi AWD

    Street Build

    14b   automatic
    1990 Eagle Talon TSi AWD

    13.620 @ 108.460 MPH
    1990 Eagle Talon TSi AWD

    13.612 @ 107.760 MPH
    Loading...
  25. Vegas smith

    Vegas smith Proven Member

    1,427
    517
    Joined Dec 2, 2002
    Houston, Texas
    Time to put on a Curt Brown head! Maybe upgrade to an hx52 like a real man.
     
    My DSM:
    1993 Eagle Talon TSi AWD

    Street Build

    16g   manual
    1992 Eagle Talon TSi AWD (sold)

    16g   manual
    Loading...
    Murdertalon and 1990TSIAWDTALON like this.

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