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1G Transmission noise

Posted by Anthony Boni, Nov 17, 2019

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  1. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey



    Hello,

    Attached is a video clip of the noise I am hearing. With the clutch engaged, there’s a rattling/ticking noise. Push the clutch pedal in, noise goes away. Any ideas before I drop the transmission?
     

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  2. Brembo

    Brembo Proven Member

    359
    67
    Joined Aug 17, 2014
    Clifton, New Jersey
    You should listen to my evo. Have similar noise sinse new. Never gave me problems so I am not dropping it until clutch lets go.
     

    Street Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  3. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    Lol nice. This won’t fly for me. So I’m yoinking the transmission tonight and going to see what’s going on.
     

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  4. Brembo

    Brembo Proven Member

    359
    67
    Joined Aug 17, 2014
    Clifton, New Jersey
    Please post your findings so that we have for the record noise and cause. Maybe it will help someone in the future, maybe it will be me.
     

    Street Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  5. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    I’ll be sure to update this thread tonight. This is the main reason I posted it. I’ve found a lot of threads asking about this same problem, but no one has updated with an answer.
     

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  6. motomattx

    motomattx Proven Member

    1,919
    675
    Joined Dec 9, 2010
    wampum, Pennsylvania
    Possibly clutch rivets coming apart, or flywheel bolts loose.
     

    Drag Race Build 3K  24

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
    Loading...
  7. Brembo

    Brembo Proven Member

    359
    67
    Joined Aug 17, 2014
    Clifton, New Jersey
    I have drove for 84k miles in 12 years so I assume my stock clutch is on its way out. It's not if, it's when. I am already looking into how big pain in the rear it will be to change out. Not looking forward to do it.
     

    Street Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  8. tk106

    tk106 Supporting Member

    1,774
    497
    Joined Sep 11, 2017
    Cincinnati, Ohio
    There’s a breather on top that’s right above the tob you can remove to look inside. Idk if that’ll help you look inside but it’s easier than pulling the trans. Think I just removed the shifter bracket to access the hole to lube my tob.
     

    171  3

    2000 Jeep Cherokee Sport - Classic
    awd · automatic · Misc Vehicles

    173  4

    93 Civic 4 Door -sold-
    fwd · manual · Misc Vehicles

    Street Build 2K  6

    1992 Eagle Talon TSi AWD
    12.625 @ 111.42 · 1G DSM
    Loading...
    1990TSIAWDTALON likes this.
  9. BLACK'98DSM

    BLACK'98DSM Proven Member

    1,041
    337
    Joined Feb 9, 2019
    Hoover, Alabama
    TOB
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    394  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    297  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
    Loading...
    1990TSIAWDTALON likes this.
  10. pauleyman

    pauleyman DSM Wiseman

    5,152
    1,014
    Joined Nov 19, 2011
    oklahoma city, Oklahoma
    I disagree. Tob will make more noise when clutch is pressed in. Internal to trans makes more sense. Input shaft, intermediate or both.
     

    Street Build 3K  1

    1997 Eagle Talon TSi AWD
    awd · manual · 2G DSM
    Loading...
    1990TSIAWDTALON likes this.
  11. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    Alright guys here’s that update I promised. I yoinked out the transmission and inspected everything very thoroughly. I found NOTHING out of place. The pressure plate teeth were all even, the throw out bearing rotated freely with no resistance, the clutch disk is in nearly perfect condition, flywheel and pressure plate torque was fine. Nothing was loose. There was zero input shaft play. Very little output shaft play.

    I removed the flywheel, and retorqued it down to 100ft lbs. I then removed my 1mm pivot ball shim. That is the ONLY thing I changed. I then reinstalled the pressure plate, torqued the bolts to 15ft lbs. I reinstalled TOB with the Jesus clip in place, threw the transmission back in, torqued the mounting bolts down, cranked the car up, noise gone. IDK. No idea.
     

    Attached Files:

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
    BLACK'98DSM and tk106 like this.
  12. Brembo

    Brembo Proven Member

    359
    67
    Joined Aug 17, 2014
    Clifton, New Jersey
    Thanks for posting the results. You work fast. How many times you have done it?
     

    Street Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  13. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    Unless the pressure plate teeth were slightly misaligned, causing the TOB to “roll” over the misaligned tooth. When the pedal is pressed, the TOB is pressed against the pressure plate teeth, making them all even, causing the noise to go away.

    Just a hypothesis though.
     

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  14. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    No problem! Wish I found something definitive to bring back. I’ve replaced a ton of transmissions for myself and friends. If I had to guess, I’ve probably removed and replaced 20 transmissions or so.
     

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  15. Brembo

    Brembo Proven Member

    359
    67
    Joined Aug 17, 2014
    Clifton, New Jersey
    Wow. I guess I have been fortunate not to have any problems with either of my dsm or the evo transmission. Granted I never launch it or race it. Just casual sprints on freeway. Maybe some pulls. Ok guilty a lot little.
     

    Street Build 2K  3

    1990 Mitsubishi Eclipse GSX
    awd · manual · 1G DSM
    Loading...
  16. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    Lol I hear you. A lot of the transmissions I have pulled have been from part outs and clutch changes as well. They’re not all due to issues. Treat these transmissions right and they’ll be good to you!
     

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
  17. BLACK'98DSM

    BLACK'98DSM Proven Member

    1,041
    337
    Joined Feb 9, 2019
    Hoover, Alabama
    EDIT: oh sh** nevermind man. My ass is going to sleep tonight.
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    394  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    297  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
    Loading...
  18. BLACK'98DSM

    BLACK'98DSM Proven Member

    1,041
    337
    Joined Feb 9, 2019
    Hoover, Alabama
    I don't know if that's a typo or not but I like it LOL
     

    Road Race Build 2K  25

    1998 Mitsubishi Eclipse N/T
    fwd · manual · 2G DSM

    394  3

    2012 Murray Explorer Dune
    rwd · automatic · Misc Vehicles

    297  6

    2009 Troy Bilt Bronco
    rwd · automatic · Misc Vehicles
    Loading...
  19. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    Haha thanks man, that’s not a typo I say that all the time at work LOL.
     

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
    BLACK'98DSM likes this.
  20. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    Still need to install the transfer case. I installed the exhaust so I could hear. Open O2 a foot from your head makes that quite impossible. Noise is gone. Noooo clue. But I’m happy I don’t have to tear it apart!
     

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...
    Jk's97DSM and BLACK'98DSM like this.
  21. Anthony Boni

    Anthony Boni Proven Member

    172
    11
    Joined May 13, 2018
    Wrightstown, New Jersey
    Last update, I think I know what the issue was.

    Before removal, the clutch fork was sitting more towards the driver’s side. By quite a bit. OEM fork, OEM TOB, OEM flywheel, OEM pivot ball, 1mm shim under the pivot ball.

    When I took the transmission off, I also yeeted my pivot ball shim because I thought, what the hell. If it still makes the noise the transmission is coming back off anyways. In the other picture, you can see the clutch fork is much more centered.

    That’s the only thing I changed, and now the rattling noise is gone. I think that was the culprit, but I can’t be 100% sure. If you’re experiencing the same noise I was, be sure to check your clutch fork position. I’m not a gambling man; but my assumption is too far In either direction is not a good thing. The closer to center, the better.
     

    Attached Files:

    Street Build 51  6

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
    Loading...

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