Thread: 240SX (S13) - Removing Clutch Damper Box (Speed Bleeder)

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  1. #1 240SX (S13) - Removing Clutch Damper Box (Speed Bleeder) 
    flip's Avatar
    flip is offline What is power without control? 240Atlanta.com
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    This is a great writeup with pictures on how to remove the clutch damper box (also known as speed bleeder). This mod helps to increase stiffness of the clutch and to make it 100x easier to bleed your clutch system. Air tends to gather in this box and not want to come out...

    To give credits where I got this write-up from:
    http://www.zeroyon.com/index/content/view/32/47/


    Clutch Line Modification

    The purpose of this mod is to take the play out of the hydraulic clutch on the S13. When you install a heavy aftermarket clutch, sometimes the hydraulic system struggles to handle the added pressure when you depress the clutch pedal. This is evident when the clutch has been fully bled but still doesn't want to disengage all the way. For some this mod is done purely because they like the stiff, live feeling of the pedal afterwards. You have a closer connection with what your clutch is doing.

    I must warn you, before doing this, that you could seriously screw your clutch system up if you do this wrong. If you don't have access to replacement hard lines, you may want to reconsider bending yours until you do. As always when playing with brake fluid, be sure not to drink it or get it in your eyes... and keep it off your paint! (it eats paint really quickly) Brake fluid washes out with water.



    Here you can see the bottom half of the hydraulic clutch system as Nissan intended it. The hard line from the clutch master cylinder comes down to the lower block. This block has a loop back line that acts like a surge tank, taking pressure off the system. This is what causes the weakness. The short hard line then routes to the soft slave cylinder line. What we will be doing is eliminating the loop back and both blocks.



    A closer look at the system



    Here we are disconnecting all of the hard lines.



    After removal of the short line, take the long line and carefully bend it by hand. Be sure not kink it. You will be turning it around and point it into the slave cylinder connection directly.



    Here you can see the finished product.



    Now go ahead and remove the loop back and blocks. Fill the master cylinder with brake fluid and bleed the clutch line. You will find bleeding this system takes only a few minutes, instead of all day like the stock system.
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  2. #2  
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    great time to add a SS clutch line too.
    FTR

    "if you see team rowdy in anyones sig, just dont even read the post. From my experience anything they've said to me was assholish and most of what i read is the same."
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  3. #3  
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    yes it is^ i did that like the 1st week i had mine takes like 5 min.
    Lifes slow and dull

    its taking too long to hit vtec
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  4. #4  
    suprabrit's Avatar
    suprabrit is offline I really need boost... Is that rod knock?
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    Flip this is a great DUI... :wink
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    I really need to do this! My dad did it to his and it makes a world of difference. We both have stag 4 comp clutches and mine feels really mushy and his feels like a damn switch.
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    hmm
    is the system similar on an s13?
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  7. #7  
    sofo259's Avatar
    sofo259 is offline 500hp lamborfeeties, wat u got I have no cup holder
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    i did this today and it def. makes a difference !!!
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  8. #8  
    flip's Avatar
    flip is offline What is power without control? 240Atlanta.com
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    Quote Originally Posted by viperbite View Post
    hmm
    is the system similar on an s13?
    The diagram shows an S13...
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  9. #9  
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    Quote Originally Posted by flip View Post
    The diagram shows an S13...
    ... er
    s14....
    i have an s14 lol
    is it the same?
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  10. #10  
    sofo259's Avatar
    sofo259 is offline 500hp lamborfeeties, wat u got I have no cup holder
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    it should be the same.. go look, it takes like 10 seconds to look under there and see if you have that queer dampner thingy
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