850 Hydraulic clutch Issue

[manovlov]

Finally not.

I had clutch issu this morning again. I've understood that the faulty part is a soft hose I 've installed on the pedal clutch cylinder. I need two use a strong and rigid. 2 hours of mechanic this afternoon so...

Manov

[manovlov]

The clutch line Part Next.

Finally, it dose't work. So, the Master cylinder is new, the salve cylinder and pedal cylinder are new, the oses from the pedal to the MC's reservoir, from the ABS Unit to the reservoir and from the slave cylinder to the reservoir have been replace by some strong ones, and it still doesn't work After approximately 25- 25 pedals pressions, the piston of the slave cylinder stays in extension and the pedal sinks deep into the bottom of the crankset and does not come back.

I've decide to change the last part of the circuit which is the hose going from the salve cylinder to the pedal cylinder.

I'm sure this hose is the OEM one and must be the problem. After that, if it dosesn't work, I will have no idea.

Can someone tell me if my problem could have matter with the brake booster ?

Manov

[volvolugnut]

If you used a soft hose not rated for about 1500 PSI, then I am not surprised you had a problem. A soft, low pressure hose would expand or even work loose at the connections. The hose should look like a brake hose at the wheels. Sorry I do not have specific information.
volvolugnut

[manovlov]

If you used a soft hose not rated for about 1500 PSI, then I am not surprised you had a problem. A soft, low pressure hose would expand or even work loose at the connections. The hose should look like a brake hose at the wheels. Sorry I do not have specific information.
volvolugnut

Hello volvolugnut,

Thanks so much for the reply. This is the hose I've used to replace all the 3 hoses.Strong ones. I will bleed brakes tomorrow because I had to extract the master cylinder to access to the clutch line of the pedal.Tomorrow the truth will be. I have ordered the hose between the slave cylinder to the pedal cylinder; So, with that, the all "circuit" will be brand new.

I should be disappointed. But not actually. I do this "refurbishment" for me, for the pleasure to do mechanic stuff. Have I loose a bit money as a newbie ? Of course. But with the advices of so many members of MVS, this car begins to return to life, I've been helped to pick up right tools, my toolbox begins to seems a serious one, and I don't want to give up. And with all OEM parts, I know that each action will take me far as I thought before starting to work. Isn't it the best definition of the art of life ?

Manov

[manovlov]

Moment of truth. The only part i didn't replace yet...

I hope you're all and yours families well !

Manov The clutch guy !

[abscate]

Bonne chance!

[manovlov]

Bonne chance!

tHANKS FOR THE SUPPORT 8
Hy Buddies,

I 've replaced the hose and putted the slave cylinder on its right place to work well. The first pressure on the fork made coming up lot of bubbles in the reservoir. So, today I will know. The four parts are brand news ones, pedal clutch cylinder, slave cylinder, master cylinder and the hose. So, it must be okay.

Manov

[manovlov]

R U ready Comedy Partners ?

Finally, the guilty has been found... Can you hear my tears of joy running through my old baby face ? The hose : check the hose ! Why didn't you check the hose first ? So. I've recovered the clutch has it was before this (rather) long incident. I didn't test the car yet, I will do it tomorrow to see if everything is alright.

i will replace every hose of this amazing car before snow time. And if I have a extra at Christmas, it will be for the heater core.

Thanks to all members who have support me during this bad time. I will check this post "solved" after tomorrow 's test.

Manov


Now, pictures.

[manovlov]

Everything is ok and fine. I've recovered the clutch as before the issue.

Manov

[Chuck W]

Glad to hear that you finally have it sorted out.