There has got to be a better way...

There has got to be a better way...

Joined: February 21st, 2008, 1:52 am

October 16th, 2008, 1:42 am #1

I’m referring to clutch slave cylinder bleeding, of course. After a day wasted trying, I still have no slave cylinder action. Every device mention in these forums has been tried and each one failed to yield even a faint hope.

The problem is epidemic and not just X-1/9 specific. The internet is overloaded with forum discussions about how to bleed clutch hydraulic systems and for every imaginable vehicle with a hydraulic clutch. This forum is an example.

It appears that there are two results: (1)You are lucky and after some experimentation, you succeed at least marginally if not totally to get a slave cylinder action, and (2), if you are unlucky nothing works. Looks like I am in the latter category. Pressure bleeding, pumping, vacuuming, bleeding the slave at the banjo bolts, bleeding the master at the unions, etc. etc.etc. No results. Tomorrow is another wasted day it would seem.


LarryC, Albuquerque, New Mexico
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Joined: April 25th, 2007, 3:40 am

October 16th, 2008, 1:54 am #2

I can understand your frustration but my experience has been very different from yours over the years. Often trouble at the slave will also be shared at the master as they both share the same fluid. Given your lack of satisfaction, I would look at the master cylinder (and replace the brake master at the same time).

I have always had good luck with them. I have had more trouble with cables and mechanisms than with the hyd clutches my Xs have always had and all of my recent VWs.

Karl Mead
West Michigan
1969 850 Sport Coupe
1970 124 Sport Coupe
1985 Bertone X 1/9
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Joined: February 21st, 2008, 1:52 am

October 16th, 2008, 1:59 am #3

Like I said, either it works or it doesn't. Yep, new slave cylinder. New EVERYTHING as matter of fact. This was part of a "repair the master cylinders before they fail at an inconvenient time" service.
Thanks for the suggestion though.

LarryC, Albuquerque, New Mexico
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Joined: June 16th, 2004, 3:48 am

October 16th, 2008, 2:01 am #4

I’m referring to clutch slave cylinder bleeding, of course. After a day wasted trying, I still have no slave cylinder action. Every device mention in these forums has been tried and each one failed to yield even a faint hope.

The problem is epidemic and not just X-1/9 specific. The internet is overloaded with forum discussions about how to bleed clutch hydraulic systems and for every imaginable vehicle with a hydraulic clutch. This forum is an example.

It appears that there are two results: (1)You are lucky and after some experimentation, you succeed at least marginally if not totally to get a slave cylinder action, and (2), if you are unlucky nothing works. Looks like I am in the latter category. Pressure bleeding, pumping, vacuuming, bleeding the slave at the banjo bolts, bleeding the master at the unions, etc. etc.etc. No results. Tomorrow is another wasted day it would seem.


LarryC, Albuquerque, New Mexico
I barely got it into garage on the last shift.(grinding and all fluid leaked at the slave. Next spring I knew the line from bowl to master was empty. I unbolted the bowl and put it under the wiper ((Don't get fluid on the paint)) I filled it and left it over night.I did this to allow gravity to fill the line to the master and let the air bubbles work their way up to the bowl. When I bled the slave using banjo and speed bleeder I had immediate success.
Sorry !! worked for me. Perhaps it's worth trying, but I haven't heard anyone else trying this.
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Joined: December 21st, 2004, 3:04 am

October 16th, 2008, 6:25 am #5

I’m referring to clutch slave cylinder bleeding, of course. After a day wasted trying, I still have no slave cylinder action. Every device mention in these forums has been tried and each one failed to yield even a faint hope.

The problem is epidemic and not just X-1/9 specific. The internet is overloaded with forum discussions about how to bleed clutch hydraulic systems and for every imaginable vehicle with a hydraulic clutch. This forum is an example.

It appears that there are two results: (1)You are lucky and after some experimentation, you succeed at least marginally if not totally to get a slave cylinder action, and (2), if you are unlucky nothing works. Looks like I am in the latter category. Pressure bleeding, pumping, vacuuming, bleeding the slave at the banjo bolts, bleeding the master at the unions, etc. etc.etc. No results. Tomorrow is another wasted day it would seem.


LarryC, Albuquerque, New Mexico
All I know is after I found the "finesse" to clear the first one... I have never had a problem since.

So lets say you are doing it right... there have been instances of defevtive Masters and Slaves... one person wrote he replaced three until it was OK.

I know there ain't much to them... but if you are SURE of your methodology, then what else could it be?

I'd replace the Slave first...

Good luck...


My best,



Tony
Black Tooth and me... since 1983!
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Joined: December 18th, 2004, 1:50 am

October 16th, 2008, 11:27 am #6

I’m referring to clutch slave cylinder bleeding, of course. After a day wasted trying, I still have no slave cylinder action. Every device mention in these forums has been tried and each one failed to yield even a faint hope.

The problem is epidemic and not just X-1/9 specific. The internet is overloaded with forum discussions about how to bleed clutch hydraulic systems and for every imaginable vehicle with a hydraulic clutch. This forum is an example.

It appears that there are two results: (1)You are lucky and after some experimentation, you succeed at least marginally if not totally to get a slave cylinder action, and (2), if you are unlucky nothing works. Looks like I am in the latter category. Pressure bleeding, pumping, vacuuming, bleeding the slave at the banjo bolts, bleeding the master at the unions, etc. etc.etc. No results. Tomorrow is another wasted day it would seem.


LarryC, Albuquerque, New Mexico
Try this.

TonyK.

http://www.network54.com/Forum/12159/me ... ch+linkage

TonyK Grimsby Ont Canada.
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Joe F
Joe F

October 16th, 2008, 3:14 pm #7

I’m referring to clutch slave cylinder bleeding, of course. After a day wasted trying, I still have no slave cylinder action. Every device mention in these forums has been tried and each one failed to yield even a faint hope.

The problem is epidemic and not just X-1/9 specific. The internet is overloaded with forum discussions about how to bleed clutch hydraulic systems and for every imaginable vehicle with a hydraulic clutch. This forum is an example.

It appears that there are two results: (1)You are lucky and after some experimentation, you succeed at least marginally if not totally to get a slave cylinder action, and (2), if you are unlucky nothing works. Looks like I am in the latter category. Pressure bleeding, pumping, vacuuming, bleeding the slave at the banjo bolts, bleeding the master at the unions, etc. etc.etc. No results. Tomorrow is another wasted day it would seem.


LarryC, Albuquerque, New Mexico
I just want to offer you some support.

I, as we all, have been fustrated by X-hydraulics.

I can tell you it IS solvable.

If you want a detailed description of how I do it, just let me know.

I can bleed a clutch (in working condition) solo in 30 minutes.

Good Luck

Joe F
87 Bert
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Bob Beaudet
Bob Beaudet

October 16th, 2008, 3:23 pm #8

I’m referring to clutch slave cylinder bleeding, of course. After a day wasted trying, I still have no slave cylinder action. Every device mention in these forums has been tried and each one failed to yield even a faint hope.

The problem is epidemic and not just X-1/9 specific. The internet is overloaded with forum discussions about how to bleed clutch hydraulic systems and for every imaginable vehicle with a hydraulic clutch. This forum is an example.

It appears that there are two results: (1)You are lucky and after some experimentation, you succeed at least marginally if not totally to get a slave cylinder action, and (2), if you are unlucky nothing works. Looks like I am in the latter category. Pressure bleeding, pumping, vacuuming, bleeding the slave at the banjo bolts, bleeding the master at the unions, etc. etc.etc. No results. Tomorrow is another wasted day it would seem.


LarryC, Albuquerque, New Mexico
I Just did mine and had problems until I started making sure that the slave cylinder piston was compressed all the way back into its bore after each cycle.

Sometimes the return spring on the clutch lever arm is not strong enough to return this piston back to bottom position. You can also help accomplish this by adjusting the lash out of the clutch prior to bleeding.

It still took a long time and I went though over a quart of fluid.

Bob.
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DaleS
DaleS

October 16th, 2008, 4:27 pm #9

I’m referring to clutch slave cylinder bleeding, of course. After a day wasted trying, I still have no slave cylinder action. Every device mention in these forums has been tried and each one failed to yield even a faint hope.

The problem is epidemic and not just X-1/9 specific. The internet is overloaded with forum discussions about how to bleed clutch hydraulic systems and for every imaginable vehicle with a hydraulic clutch. This forum is an example.

It appears that there are two results: (1)You are lucky and after some experimentation, you succeed at least marginally if not totally to get a slave cylinder action, and (2), if you are unlucky nothing works. Looks like I am in the latter category. Pressure bleeding, pumping, vacuuming, bleeding the slave at the banjo bolts, bleeding the master at the unions, etc. etc.etc. No results. Tomorrow is another wasted day it would seem.


LarryC, Albuquerque, New Mexico
I've had some trouble with a couple of these where the only conclusion I can come to is that there was air above the master cylinder - that is, between the reservoir and the master.

In fact I had one car where the clutch quit working when all I wanted to do was change the old fluid. I filled the reservoir with new fluid and started bleeding the old fluid out (being careful not to empty the reservoir) but I lost pressure almost immediately.

So I guess the question is, are you sure you are getting fluid to the master cylinder? Maybe you could crack a line near the master to find out.
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Joined: August 29th, 2005, 4:22 am

October 16th, 2008, 6:16 pm #10

I Just did mine and had problems until I started making sure that the slave cylinder piston was compressed all the way back into its bore after each cycle.

Sometimes the return spring on the clutch lever arm is not strong enough to return this piston back to bottom position. You can also help accomplish this by adjusting the lash out of the clutch prior to bleeding.

It still took a long time and I went though over a quart of fluid.

Bob.
I read somewhere or figured on my own that the slave piston had to be pushed into the bore a little to get the bleeder there to be effective. Once I knew that, it was fairly simple, I use a pressure bleeder (for pressure but not for fluid).

Gregory Smith

'87 Bertone X1/9 Corsa
'88 VW Vanagon
Olympia, Washington, USA
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