Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Clutch master/slave problems

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Old Jul 4, 2024 | 09:51 AM
  #1  
caseynewman1994's Avatar
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Default Clutch master/slave problems

Hey guys I'm having an issue and I'm hoping y'all can help me.

​​​i just put my trans back in after doing my clutch and now my clutch is not acting normal, I've already bleed it out.

So basically if I press the clutch to the floor it feels ok, feels normal, but I can hear that it's not engaging the clutch fork as it's normally pretty audible. When I release the pedal it comes up as normal. So I go under the hood and loosened the boot for the slave and I see that it's fully extended as if my foots on the clutch pedal, if I press the piston in then it shoots right back out like I'm on the clutch. Shouldn't there be no resistance if the pedal is up?

So what I'm wondering is if this is the master causing this or the slave? Or something else? I'm replacing both but I'm curious as to what y'all's opinions are.

I've removed the slave and played with the fork and that all feels normal. I can also roll through the gears and it feels like I'm on the clutch pedal when I'm not.


Edit: forgot to mention it's a 2000 civic hx.

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Old Jul 5, 2024 | 10:16 AM
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Default Re: Clutch master/slave problems

Recently went through hell with my clutch hydraulics, by no means an expert, but here is my 2 cents.

- Check the seal behind the clutch pedal on the master, if its leaking it will be obvious
- Check the entire line from master to slave for leaks or cracks. Double check the connections to each cylinder that everything is tight.
- Yes, remove the boot and visually check the movement of the fork. Double check that the spring which holds the fork to the pivot bolt is installed properly. Is there clutch fork OEM? I used an aftermarket that had to be adjusted a bit.
- Try doing a clutch adjustment, potentially the rod isn't pushing into the master deep enough.
- Go to harbor freight and get a cheap vacuum bleeder, makes the bleed so much faster.
- Keep the reservoir cap ON while bleeding

Those are just a few of the things that helped me out. Granted, different year (97 CX) on mine, not entirely sure of potential differences.
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Old Jul 6, 2024 | 05:07 PM
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Default Re: Clutch master/slave problems

Every time I pull my slave off, it spits the ball piston out. There still is a bit of pressure in the system even when not pressing the clutch pedal. I just be sure I reinsert it into the slave when installing and bleed the system.
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Old Jul 17, 2024 | 12:13 PM
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caseynewman1994's Avatar
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Default Re: Clutch master/slave problems

Originally Posted by Smnthmpsn
Recently went through hell with my clutch hydraulics, by no means an expert, but here is my 2 cents.

- Check the seal behind the clutch pedal on the master, if its leaking it will be obvious
- Check the entire line from master to slave for leaks or cracks. Double check the connections to each cylinder that everything is tight.
- Yes, remove the boot and visually check the movement of the fork. Double check that the spring which holds the fork to the pivot bolt is installed properly. Is there clutch fork OEM? I used an aftermarket that had to be adjusted a bit.
- Try doing a clutch adjustment, potentially the rod isn't pushing into the master deep enough.
- Go to harbor freight and get a cheap vacuum bleeder, makes the bleed so much faster.
- Keep the reservoir cap ON while bleeding

Those are just a few of the things that helped me out. Granted, different year (97 CX) on mine, not entirely sure of potential differences.
Thanks for the advice, it really just came down to not being bleed out enough. I thought it was good because the pedal felt good but I ended up buying one of the vacuum bleeders and now the fork moves so obviously there was air trapped somewhere.

It was a learning experience, I've bled brakes before but it's seemingly a lot harder to get the air out of the clutch line for whatever reason.
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Old Jul 17, 2024 | 01:17 PM
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Default Re: Clutch master/slave problems

Awesome, glad to hear it. From what I've heard, civic clutch hydraulics are an unusually long bleed process. Vacuum bleeder saved my life haha
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Old Jul 18, 2024 | 11:09 AM
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Default Re: Clutch master/slave problems

Originally Posted by Smnthmpsn
Awesome, glad to hear it. From what I've heard, civic clutch hydraulics are an unusually long bleed process. Vacuum bleeder saved my life haha
Probably doesn't help with how the hardlines are routed. I had major issues with the 01-05 clutch bleeding with the two person method and even the vacuum bleeder.

Friend who was a tech gave me the tip to use the vacuum bleeder and to keep it running while you close the valve, which seemed to help keep pressure.
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