bad throw out bearing?

Discussion in 'Mechanical Problems & Technical Chat' started by john valetutto, May 14, 2020.

  1. john valetutto

    john valetutto Well-Known Member

    Messages:
    33
    So when I got my 2012 Civic si it had 74k miles on it and I found out from the dealer that the throw out bearing was on its way out but it didn't need to be replaced yet because the clutch had "plenty of life left". Well I think that life is coming to an end.

    At first I would only hear that bearing noise (sounds like Chewbacca is stuck under my car) when I shifted the wrong way in first or second. Now I'm hearing it even while I'm in gear. Mostly if I'm in gear with my foot off the gas. When I put the clutch in and take it out of gear to coast it goes away. I'm pretty sure it's the clutch.

    My question is if I'm replacing the clutch, should I get a good aftermarket one? I might want to turbo or supercharge it in the future. If I do which clutch would you guys/girls recommend? I have a flashpro so the CEL from a lightweight flywheel shouldn't be an issue.

    So I guess my two questions are:

    What clutch do you recommend I get if I plan on a turbo/supercharge in the future?

    And

    If I use a lightweight flywheel and disable the sensor with flashpro, will I have to re-enable that sensor to pass inspection? I live in NY and I have to flash back to stock and clear the codes annually to pass inspection (because of the downpipe).
     
  2. dpetro1

    dpetro1 Well-Known Member

    Messages:
    449
    Location:
    Catonsville, MD
    Stick with a stock/steel flywheel. You cannot flash back to stock and keep the misfire detection disabled and your obd readiness will not set with misfire detection off so you would never be able to pass and inspection.

    There are plenty of options that work without disabling misfire detection.
    Clutchmasters fx series comes to mind.



    Sent from my SM-G920V using Tapatalk
     
  3. john valetutto

    john valetutto Well-Known Member

    Messages:
    33
    Thanks for answering my question. I might just stick to stock. I didn't realize it's virtually impossible to pass inspection with turbo. I'm pretty sure I'd have to swap all the stock parts back just to pass inspection. Which seems like a huge pain in my ***.
     
  4. mySIck
    • 2019 Toys For Tots

    mySIck Well-Known Member

    Messages:
    2,179
    Location:
    FT. Bragg, NC
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
    Exactly what is the noise? The 9th gen SI has an issue with a growl sound when letting off the clutch replacing the clutch, flywheel and throw out bearing will not fix the issue. It is not causing any damage it is just an annoying noise.


    View: https://youtu.be/B3UY5-yirvI
     
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  5. john valetutto

    john valetutto Well-Known Member

    Messages:
    33
    That's the noise I'm used to hearing if I shift just right. I was told by a dealership and forums that it was the throw out bearing. Now I'm hearing that noise but it's steady. If I shift up to third or fourth, stay in gear and let off the gas , that's usually what triggers it. It will stay until I engage the clutch, take it out of gear and coast for a bit.

    Edit:

    After reading more about it. Does it make sense for this noise to he happening while the car is in motion if it's the throw out bearing? Could it be the input shaft bearing instead?
     
    Last edited: May 14, 2020
  6. mySIck
    • 2019 Toys For Tots

    mySIck Well-Known Member

    Messages:
    2,179
    Location:
    FT. Bragg, NC
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
    Does it constantly do it or just when you let out the clutch?
     
  7. john valetutto

    john valetutto Well-Known Member

    Messages:
    33
    No it's fine as long as I'm accelerating. But if I leave it in gear, let off the gas and the rpm drops, then it happens . It won't stop until I take it out of gear and let off the clutch. I also noticed it doesn't happen as frequently or at all in higher gears. I mostly notice it in third and fourth.
     
  8. mySIck
    • 2019 Toys For Tots

    mySIck Well-Known Member

    Messages:
    2,179
    Location:
    FT. Bragg, NC
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
    That sounds more like a bad throw out bearing if it were just doing it when you let out the clutch i would say you are fine but if it constantly does it like you say i would replace the throw out bearing to see if it fixes the issue. I believe they are around 75 bucks.
     
  9. john valetutto

    john valetutto Well-Known Member

    Messages:
    33
    It's not just something I can do though. Id have to take it to a shop. I was planning on buying all the parts and taking it to the dealer to replace the clutch. I was told if you're doing the bearing, you might as well replace the entire clutch while you're at it.

    I'm a little confused on which clutch kit and flywheel to get though. I've decided to stay as close to OEM as possible, but obviously Honda didn't make the most reliable clutch. I was thinking of getting the OEM flywheel and an aftermarket clutch kit. Just not sure which one yet. Dpetro recommended the clutch master fx series. But I see they have several of the fx series and I'm not sure which one is the best. Also I'm not sure if the clutch kit needs to be balanced to the flywheel.
     
  10. dpetro1

    dpetro1 Well-Known Member

    Messages:
    449
    Location:
    Catonsville, MD
    FX100 would be closest to sock but still give a bit more performance.

    Sent from my SM-G920V using Tapatalk
     
  11. mySIck
    • 2019 Toys For Tots

    mySIck Well-Known Member

    Messages:
    2,179
    Location:
    FT. Bragg, NC
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
  12. mySIck
    • 2019 Toys For Tots

    mySIck Well-Known Member

    Messages:
    2,179
    Location:
    FT. Bragg, NC
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
    The steel flywheel that is not the light weight.
     
  13. john valetutto

    john valetutto Well-Known Member

    Messages:
    33
    Ok guys thanks for the help. But what's the deal with this whole balancing thing? Does the fx100 need to be balanced to the steel flywheel they sell?
     
  14. dpetro1

    dpetro1 Well-Known Member

    Messages:
    449
    Location:
    Catonsville, MD
    I would assume the clutch kit is already balanced. I've never heard of anyone doing that with an aftermarket kit. Buy the clutch and install.
    If you were trying to reuse the oe flywheel then it would need to be resurfaced.

    Sent from my SM-G920V using Tapatalk
     

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