DIY Clutch Delay valve Removal

Discussion in 'Engine DIY' started by Mikex18, Aug 11, 2013.

  1. Mikex18

    Mikex18 Well-Known Member

    Messages:
    650
    Location:
    Quebec.. yes we speak english in quebec
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
    For the one who drive their car hard, you must have noticed that when you shift hard the clutch has a tendency to ''slip'' just a bit!! Thats because of the Clutch delay valve in the slave cylinder, its there to prevent transmission component damage due to slowly releasing the pressure in the slave, but make the clutch wear faster!!!

    Taking it off will result in a :
    -Bit stiffer clutch
    -better clutch response
    -no more clutch slipping


    First of all you need to take off your airbox/cai/sri in to be able to reach the slave cylinder and clutch hose easily!!



    Then you need to take off the slave cylinder on the transmission! There is two(2) 12mm bolt and you need a 10mm key for the clutch hose!!


    [​IMG]

    Once the slave is off, the is a ''C'' clip to take off. This thing is a pain in the *** to take off. Most of the time, its stuck in corrosion!

    You need some really sharp screwdriver like theses:
    **Be carefull with those picks, one of my finger didnt like when the pick went through it!!
    [​IMG]


    To make the ''C'' clip removal a bit easier, take a punch and a hammer and hit on the little cap to unstick iit from the corosion


    [​IMG]

    With a set of long nose pliers, take the little cap off!!


    Once done, you will have a few parts in hand, the delay valve (little white thing), the filter (the little black thing, which is IN the delay valve by the way)

    You throw the white and black thing to the garbage!!

    [​IMG]
    Put back the cap, be carefull with the O-ring, and put back the ''C'' clip!!

    Re-install on the tranny with the 12mm bolt, reconnect the hose(10mm key)!


    Once re-installed you will need to bleed the clutch, 8mm key on the bleeder! You will need a friend to help bleeding it, one to pump the clutch and one to open the bleeder! Repeat until there is no more air, always look for the oïl level in the Clutch master cylinder! If you know how to bleed brakes, you will be fine bleeding a clutch!!

    If you dont do this step correctly, it will result in shifting problem, and prematurate clutch wearing!!




    After its all done, road test!!!


    Its been done since a week on my car, and WOW muuuccchhh MUUUCCCHHHHH better!!


    I hope its all clear, if you have any question pm me, ill help the better i can!!!


    **Sorry for the mistakes, im french, and i try my best** :D :D
     
    Last edited: Mar 7, 2018
  2. Dar-Dar
    • Staff

    Dar-Dar Mordorator

    Messages:
    19,329
    Location:
    North NJ
    Vehicle Model:
    Civic Si
    Body Style:
    Fiji Blue Pearl Coupe Coolest Member Since: May 15, 2011
    You'll probably notice a much bigger difference if you ad a Dot4 brake fluid in your cmc and installing a stainless steel clutch line. :D

    Nice DIY.
     
  3. Mikex18

    Mikex18 Well-Known Member

    Messages:
    650
    Location:
    Quebec.. yes we speak english in quebec
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
    I do have dot4.. and the pics are not from me.. ibdo have a staimless line :D
     
    Dar-Dar likes this.
  4. Dar-Dar
    • Staff

    Dar-Dar Mordorator

    Messages:
    19,329
    Location:
    North NJ
    Vehicle Model:
    Civic Si
    Body Style:
    Fiji Blue Pearl Coupe Coolest Member Since: May 15, 2011
    I need to buy a ss line for my clutch, MTEC springs, and probably this diy. Do you know any possible downside to this?
     
  5. James McTavish

    James McTavish Well-Known Member

    Messages:
    9
    I knew there was a reason why I grind 2nd, its designed so you cant quick shift! Good DIY, I'll do this soon!
     
  6. immajackuup

    immajackuup Well-Known Member

    Messages:
    464
    Location:
    Houston,Texas
    same
     
    AE86RX2 likes this.
  7. 323
    • Staff

    323 Modifier

    Messages:
    5,252
    Location:
    Chicago
    Vehicle Model:
    Civic Si
    Body Style:
    Sedan
    wondering this too...
     
  8. squiggy
    • Staff

    squiggy Cartographer

    Messages:
    10,699
    Location:
    Michiana
    Vehicle Model:
    '12 Civic Si
    Body Style:
    DBP II Coupe
  9. Mikex18

    Mikex18 Well-Known Member

    Messages:
    650
    Location:
    Quebec.. yes we speak english in quebec
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
    The old Bseries and Dserie didnt have this, if you always powershift and always shift like its was the last **** you would do, tranny will break like old B-D did!!


    When you release the clutch hard, it kicks hard in the diff, axles, gears ect
     
  10. James McTavish

    James McTavish Well-Known Member

    Messages:
    9
    You know what really grinds my gears? This stupid delay.
     
  11. immajackuup

    immajackuup Well-Known Member

    Messages:
    464
    Location:
    Houston,Texas
    done!!! ***** really grab.
    [​IMG]
     
    Dar-Dar likes this.
  12. immajackuup

    immajackuup Well-Known Member

    Messages:
    464
    Location:
    Houston,Texas
    I think this is the second best mod ever.
     
    Last edited: Aug 16, 2013
    Flippercon and Mikex18 like this.
  13. RedRocket_Si13

    RedRocket_Si13 Active Member

    Messages:
    85
    Location:
    annapolis,md
    Vehicle Model:
    Civic Si
    Body Style:
    Sedan
    can you really tell the difference
     
  14. immajackuup

    immajackuup Well-Known Member

    Messages:
    464
    Location:
    Houston,Texas
    Yes,I have stage 2 act clutch with 11pound fly wheel.
     
  15. Mikex18

    Mikex18 Well-Known Member

    Messages:
    650
    Location:
    Quebec.. yes we speak english in quebec
    Vehicle Model:
    Civic SI
    Body Style:
    Sedan
    Yesterday i tried something that never worked before takin this out


    Shifting in 2nd gear in a burnout, while on the handbrake!! First time i tried, clutch was slipping bad...now.. grabbed like crazy


    Epic burnout video comming, :D
     
  16. immajackuup

    immajackuup Well-Known Member

    Messages:
    464
    Location:
    Houston,Texas
    I did the same lol

    but here's some more info about cdv http://www.1addicts.com/forums/showthread.php?t=473094
     
  17. njhustler

    njhustler Well-Known Member

    Messages:
    385
    Location:
    New Jersey
    Vehicle Model:
    Civic Si
    Body Style:
    Sedan
    I wonder if this mod could help my launch at the track. Maybe my wheelspin I felt was actually clutch slip. Hmmm.
     
    jarvasdb1 likes this.
  18. Bulkybear

    Bulkybear Well-Known Member

    Messages:
    1,665
    From your video I would guess no. Didnt seem to slip in other gears after launch. Even so a cdv isn't going to delay the release of the pedal that much. Still I've been thinking about doing this also. Mainly to reduce clutch wear from slipping.
     
  19. njhustler

    njhustler Well-Known Member

    Messages:
    385
    Location:
    New Jersey
    Vehicle Model:
    Civic Si
    Body Style:
    Sedan
    My second run had what I thought was wheelslip , so I feathered the throttle a bit. Thinking about it now it might be clutch slippage. The first run wasnt too bad.
     
  20. Bulkybear

    Bulkybear Well-Known Member

    Messages:
    1,665
    Trust me it shouldn't be clutch slip. If so you would smell it. And unless your over I'd guess around 300 whp or have just melted your clutch over time it won't slip. At least mine doesn't.
     

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