clutch bleeding problem - Honda Prelude Forum

shanehonda · 06-20-2009, 02:02 PM

So I bled my clutch for three hours still does not get stiff goes to the floor any suggestions?

SkylineKin · 06-20-2009, 08:59 PM

You must be doing something wrong then, Here is how I do it:

1. Make sure resivour is full, this needs to be full the whole time while bleeding the clutch
2. Have your friend sit in the car and pump up the pedal and hold the pedal to the floor (its going to be dead the first few times, might be easier for him to pump it up with his hand)
3. Open the bleeder screw on slave cylinder, while your friend continues to hold the pedal to the floor, then after a few seconds close it
4. Repeat step 2 and 3 until the pedal feels firm and there is no air coming out of the bleeder screw

The key is to keep the fluid resivour full, if you let it run out and suck air back then you have to start all over. Hope this helps!

Gawel30 · 06-21-2009, 11:37 AM

isnt that only for brakes for a clutch i always thought for a clutch u open the valve then push down the clutch slowly and hold it until the valve is closed and repeat and shane where you gravity bleeding the clutch?

Nusdogg · 06-21-2009, 01:56 PM

You'll have to have someone pump the clutch pedal by hand for 3-5 sec and hold it down, then you'll have to unscrew the bleed bolt on the slave for 1-2 sec and close it down, and continue on with the step till clutch pedal is hard. Thats how I did mine, you'll need a second person to pump the pedal if you want it to work. Just like what skylinekin said.

shanehonda · 06-21-2009, 07:43 PM

Did that for three hours got nothing I'm going to use a vacuum pump to suck the air out

Edul59 · 06-21-2009, 07:48 PM

i just redid my clutch and everything and i was bleeding it and well i was in the same page...guess what...i changed my slave cylinder...20 bucks or soo...and that was it...either the slave or master are not holding pressure...make sure the line is tight too...dude i bled my for 20 mins tops by myself after the new slave...try it

Edul59 · 06-21-2009, 07:49 PM

p.s. i used a piece of 2x4 to hold down the pedal as i opend the slave bolt...worked great

SkylineKin · 06-21-2009, 10:57 PM

Yea, If the proper bleeding technique isnt working you must have a leak somewhere, weather it be in the line somewhere or the slave cylinder or the master cylinder. Probably the slave cylinder, check for wetness on the slave and lines, and inside the car where the master cylinder mounts, they tend to leak there.

SNsLude · 06-21-2009, 11:39 PM

Why wouldn't you change the slave anyway if you're doing the master?

+1 on either wrong bleeding procedure or that you have a leak. Something isn't making the system build pressure.

shanehonda · 06-23-2009, 10:23 PM

So I changed my master and switched to my h23 slave I have a little pressure at the bottom but it does not get better should I buy a new slave?

G_Loc · 06-24-2009, 06:31 AM

Are you opening the bleed bolt enough? I had an issue bleeding once and I just wasn't opening the bolt enough

Check the rest of the system for leaks. From the master to the slave, there is a rubber hose and the clutch damper, make sure you don't have any leaks there

shanehonda · 06-24-2009, 11:10 AM

Ya man I have and where is the damper? And can you start the car in neutral as long as its not touching the senser up top?

SNsLude · 06-24-2009, 02:20 PM

I'm thinking there's something wrong in your bleeding process. After you changed out the slave you noticed there was pressure building up compared to the old one right? Are you using a clear line from the bleed nipple? I didn't get any decent pressure for at least 10 minutes when I did mine because there was TONS of air bubbles in the lines.

shanehonda · 06-24-2009, 07:15 PM

Ya last night had a cup with fluid and a hose coming off the slave and kept bleeding it till the bubbles in the cup stoped I just went and bought a new slave today, and im going to put it on. My buddy came and helped me last night and we did everything right he said it has to be the slave??? My sr20 swap my d16 and my last lude i did all the same and they turned out great so I am going to try the new slave to see ya know?

v8killaz · 06-24-2009, 10:17 PM

wait hers how u do it i think some people are confused

pump the clutch and hold it up(released) or yank it as high as possible not to the floor
blead and tighten

repeat

once its good it should feel stiff

you have to do the oppisite of brake dont leave the pedal down bring it up then release the pressure kk

shanehonda · 06-25-2009, 10:41 AM

ya i tried that too heard that works well when I left it up thats when i but the vacuum line on the slave and sucked all the bubbles out and it worked great im still going to put my new slave on today

Edul59 · 06-25-2009, 06:30 PM

remember bleeding a clutch takes longer than per say bleeding the brakes...probally double...so dont give up if it holds a little pressure. the pressure will build up keep bleeding son.

shanehonda · 06-25-2009, 06:57 PM

So I put the new slave on no pressure or peddle I'm so frustrated I have been bleeding it forever tried so many things so anyone notice the clutch line goes up then down? Guarantee there is alote of air that needs to be forced out?

SNsLude · 06-25-2009, 09:55 PM

When you see the fluid coming out of the line, do you see air bubbles in the line itself? If you had a leak in the system I would think you would continue to see bubbles since air would be getting in somewhere.

v8killaz · 06-25-2009, 10:39 PM

ok theres a trick i know but its harder and really hard to explain

hook up a fluid line to the bleeder screw and pump it upwards, the air goes out from down to up thpugh the resivoir pump it till all the bubbles are out

confusing but works all the time