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Fix for Squeaking Clutch

Discussion in 'Technical Chat' started by hladun, Apr 9, 2013.

  1. Apr 9, 2013 at 9:53 AM
    #1
    hladun

    hladun [OP] Well-Known Member

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    I have made a modification that stopped the squeak on my 08 clutch.

    First the disclaimer. This will fix the squeak (noise) that stops when the clutch is slightly depressed. This will not cure a damaged TO bearing or transmission input tube, but I think it will prevent these failures from happening in the long run. If you do a lot of towing you might not want to do this because the fix reduces the clamp pressure of the clutch.

    You need to get a mid 90's clutch MASTER cylinder from an F150. Inside you'll find a spring and collar. Remove and disassemble your slave cylinder and replace the spring with the F150 spring and collar. The collar fits on the peg of the piston that had the Toyota spring on it. It will be a bit of a struggle to reinstall the slave cylinder because the spring pre-loads the TO bearing.

    The spring you need should be about 3" long, 5/8" ID with a rate of 5 to 7 lbs/in.

    Many other vehicles (my experience with Porsche, Jaguar, Volvo, Maserati, Alfa Romeo, and Ford) have pre-loaded TO bearings and I've never had squeak problems with their clutches. Bearings don't like to run lose and/or slipping.
     
    Last edited: Jul 15, 2014
  2. Jan 10, 2014 at 11:27 AM
    #2
    romafern

    romafern Well-Known Member

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    Machine gun mount. Would love to blow the shit out of it since it has nothing but issues. QA at Toyota USA is shit. Start making them in Japan for Christ's Sake!
    Got video?
     
  3. Jan 10, 2014 at 11:41 AM
    #3
    hladun

    hladun [OP] Well-Known Member

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    No video, but when you get the Toyota slave cylinder apart it's pretty obvious.

    P.S. I did this about 2 years ago and to date no squeak and no problems.
     
    Last edited: Mar 20, 2014
  4. Jan 10, 2014 at 3:21 PM
    #4
    gearcruncher

    gearcruncher Well-Known Member

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    I like your fix . Hope it lasts forever but i doubt it .
    Your spring upgrade shouldnt reduce plate loading . The release bearing is constant design meaning it always turns but your pressure plate is responsible for the clamping force between the friction disc and flywheel . unless the total travel of the release bearing has changed ?

    EDIT : After reading the FSM , I retract what I mentioned here as I wasnt aware at the time .
    The release bearing is designed as NON constant . The Tacoma does not use a self adjusting clutch.
    Feel free to pm me even if you dont trust me:D
     
    Last edited: Sep 17, 2014
  5. Jan 10, 2014 at 3:48 PM
    #5
    hladun

    hladun [OP] Well-Known Member

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    I'm not sure what you're trying to say here. The total travel of the release lever (release bearing) is unchanged. All that happens with the stronger spring is there is sufficient force on the release bearing to keep it turning with the pressure plate fingers without slipping/vibrating/chattering when the clutch is released (pedal up).
     
  6. Jun 21, 2014 at 2:39 PM
    #6
    hladun

    hladun [OP] Well-Known Member

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    Here's a picture of the fix. This is the slave cylinder and its internals. You replace the weaker spring (upper in photo) with a stronger one that I described (lower in photo). The Ford collar I talk about fits the new spring to the green piston. That's it problem solved!

    Toyota.jpg
     
    Last edited: Jun 21, 2014
  7. May 13, 2015 at 10:43 PM
    #7
    TacoCynGsxr

    TacoCynGsxr Member

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    Core/Hurst Short Shifter, URD Throwout Bearing Fix, SnugTop Rebel w/ Yakima Racks, Front Engine Cover Leak Fix, TRD CAI, Waterport Tank, RedLineGoods Shift Boot, HotRodShiftKnob Coming soon: Pelfreybilt Goodies, Bilstein 6112/ 5160, AllPro Expedition Leafs Frame Rust Recall Participant but since CA Truck, so Toyota said f' me
    Hows the fix holding up? Still good?
     
  8. May 15, 2015 at 11:34 AM
    #8
    hladun

    hladun [OP] Well-Known Member

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    Better than ever. There is no noise and the clutch works fine. It sounds like the bearing has actually "settled in".
     
  9. May 15, 2015 at 2:24 PM
    #9
    TacoCynGsxr

    TacoCynGsxr Member

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    07 Taco SR5 AccessCab 4x4 6-spd manual trans, V6, SuperWhite
    Core/Hurst Short Shifter, URD Throwout Bearing Fix, SnugTop Rebel w/ Yakima Racks, Front Engine Cover Leak Fix, TRD CAI, Waterport Tank, RedLineGoods Shift Boot, HotRodShiftKnob Coming soon: Pelfreybilt Goodies, Bilstein 6112/ 5160, AllPro Expedition Leafs Frame Rust Recall Participant but since CA Truck, so Toyota said f' me
    great work. will try that fix as well. i have the URD sleeve in mine but it squeaks after 6 or so months with the metal to metal contact. After it's lubed up it's ok.
     
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