DIY Clutch Delay valve Removal

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

  1. luigiGsi

    luigiGsi Well-Known Member

    Messages:
    5
    Hey guys i just installed the prl cai and the CDV delete along with it. To bleed the clutch line i removed rubber cap pumped a few times then lossened the bleed valve pumped a few more times then tightened it back up and capped off with rubber. My clutch comes back normally now. It engages really early ( like an inch as soon as im releasing the clutch. Anyone else have sismilar experience. Another thing i want tofet resolved is squeaking sounds on my clutch when i press/depress. What could that be?? Help please. (I have a 13 si for reference)
     
  2. Gilles LeClair

    Gilles LeClair Well-Known Member

    Messages:
    173
    Location:
    Moncton, NB. Canada
    Vehicle Model:
    Civic Si
    Body Style:
    Sedan
    Had the same happen to mine.
    It needs to be bleeded more, make sure you pump the clutch pedal and keep it to the floor, open and close bleeder, once closed you can release pedal.
    I also bought a $5 one man bleeder and it really helped.

    Anyone correct me if I am wrong.
     
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  3. Sarcras

    Sarcras Well-Known Member

    Messages:
    1,133
    Location:
    North Dakota
    Vehicle Model:
    Civic Si
    Body Style:
    FB6
    If you don't have a vacuum pump or speed bleeder, open the bleeder, depress the clutch to the floor, close the bleeder then pull the clutch pedal forward. Repeat until there are no more air bubbles coming out. One thing that helps to see if any more air is coming out is to get a length of clear tubing. Also make sure the reservoir is full at all times. That's how I did it the first time. Second time around I used a speed bleeder. This is the website I got mine from.
     
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  4. luigiGsi

    luigiGsi Well-Known Member

    Messages:
    5
    thanks i'll definitely give that a try once the car cools down a bit !
     
  5. luigiGsi

    luigiGsi Well-Known Member

    Messages:
    5
    thanks makes sense im about to get this done!
     
    Sarcras likes this.
  6. jarvasdb1

    jarvasdb1 Well-Known Member

    Messages:
    153
    Any long term reviews or effects of this?
     
  7. Sarcras

    Sarcras Well-Known Member

    Messages:
    1,133
    Location:
    North Dakota
    Vehicle Model:
    Civic Si
    Body Style:
    FB6
    1.5 years and about 8k miles and still very glad I did it.
     
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  8. ron v
    • 2019 Toys For Tots

    ron v The good, the bad, and the booty

    Messages:
    4,001
    Location:
    Escondido
    Vehicle Model:
    Hot fuego
    Body Style:
    Landscaper Truck
    I tried to get the clip out for like 30 minutes the other day. Just would not come out. I'm give it another shot in a few weeks when I have a vacation.
     
  9. xXCiviXx

    xXCiviXx Well-Known Member

    Messages:
    890
    Location:
    Calgary, AB, Canada
    Vehicle Model:
    Si
    Body Style:
    Coupe
    Did it about 2 years ago. 0 issues and still feels great to drive
     
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  10. Sarcras

    Sarcras Well-Known Member

    Messages:
    1,133
    Location:
    North Dakota
    Vehicle Model:
    Civic Si
    Body Style:
    FB6
    That clip is a royal pia to get out. Sad day when you work on trying to get that thing out for a half hour with no luck and your wife comes out and gets it out in under a minute. :pat:
     
  11. ron v
    • 2019 Toys For Tots

    ron v The good, the bad, and the booty

    Messages:
    4,001
    Location:
    Escondido
    Vehicle Model:
    Hot fuego
    Body Style:
    Landscaper Truck
    I would have sold the car right then.

    It was right there. Like bending to where I thought it was gonna pop out then it popped back into place. After that I stuck the pick in my finger and I was over it. Ima take it off and have my neighbor do it while I install some other parts. And that's my excuse. Lol.
     
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  12. Sarcras

    Sarcras Well-Known Member

    Messages:
    1,133
    Location:
    North Dakota
    Vehicle Model:
    Civic Si
    Body Style:
    FB6
    Sounds like a good plan to me!
     
  13. squiggy
    • Staff
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    squiggy Cartographer

    Messages:
    10,931
    Location:
    Michiana
    Vehicle Model:
    '12 Civic Si
    Body Style:
    DBP II Coupe
    Funny enough this is exactly what happened to me...still took the neighbor about half an hour of fiddling with it. Before I stuck myself with one pick, I broke a different one.
     
  14. TF_FB6

    TF_FB6 Well-Known Member

    Messages:
    81
    Location:
    York, PA
    Vehicle Model:
    Honda Civic SI
    Body Style:
    Sedan
    I have been wanting to do this but I just saw the other day that some people were saying there is also another delay valve in the CMC. I saw Ktuned apparently makes one with out anybody have any truth or experience to this?
     
  15. Sarcras

    Sarcras Well-Known Member

    Messages:
    1,133
    Location:
    North Dakota
    Vehicle Model:
    Civic Si
    Body Style:
    FB6
    I can not remember were on this forum I saw the posts but I have read that people that have replaced the CMC with an aftermarket one like that one did not notice a difference. If I have time to look for it today, I will repost it.
     
  16. PainlessCandy

    PainlessCandy Well-Known Member

    Messages:
    350
    Location:
    Cleveland
    Vehicle Model:
    Civic Si
    Body Style:
    Coupe
    The delay valve is inside the slave cylinder for the CMC; if you only replace the CMC the slave cylinder will remain and it won't feel any different since the delay valve is still in the line. You would have to replace the master and the slave in order to get rid of the delay valve without opening anything up to take the valve out.

    Sent from my SAMSUNG-SM-N910A using Tapatalk
     
  17. ron v
    • 2019 Toys For Tots

    ron v The good, the bad, and the booty

    Messages:
    4,001
    Location:
    Escondido
    Vehicle Model:
    Hot fuego
    Body Style:
    Landscaper Truck
    I'm gonna give this another go later. CAI gives me easy access so I'm not gonna take no for an answer.
     
  18. Sarcras

    Sarcras Well-Known Member

    Messages:
    1,133
    Location:
    North Dakota
    Vehicle Model:
    Civic Si
    Body Style:
    FB6
    You won't regret it, promise.
     
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  19. TF_FB6

    TF_FB6 Well-Known Member

    Messages:
    81
    Location:
    York, PA
    Vehicle Model:
    Honda Civic SI
    Body Style:
    Sedan


    "If you look at the CMC on these cars more closely, you'll notice that all of these models have a triangular shaped feedback plate positioned at the very end of the cylinder. This plate is basically a secondary valve that was designed to slow down the clutch engagement and reduce shock to the clutch itself and the surrounding drivetrain parts. This setup might be perfectly fine for people that just drive their cars for simple daily use, but the delayed engagement can cause wear to the synchros and possibly even the gears on performance applications. The reason is fairly simple, the factory CMC delays the clutch operation, so it does not open fast enough to keep up with a fast shift. This means that pressure is being applied to the transmission synchros during the shift, before they are ready for the actual gear change." Ktuned
     
  20. PainlessCandy

    PainlessCandy Well-Known Member

    Messages:
    350
    Location:
    Cleveland
    Vehicle Model:
    Civic Si
    Body Style:
    Coupe
    I had not seen that Ktuned quote, nor anyone else mention anything about a valve in/on the master cylinder. I also don't remember the CMC having a triangular end on it, so this might be referring to regular civics and not the Si. As far as I know, the Si only has the one delay valve, and it is the plastic floater piece inside the slave cylinder. If in doubt, check out replacement CMC parts; Nissin makes the CMC for the Si as well as pretty much all other Honda applications (if I'm not mistaken).

    Sent from my SAMSUNG-SM-N910A using Tapatalk
     

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