Unbleedable clutch - can get all the air out of the pipe

alfesti

alfesti

Member
Afternoon chaps,

Bit of a sticky one for you to get your teeth into here.

A few weeks back my clutch hydraulics packed up, so I changed the slave, no good. Rebuilt the master, no good. So I fitted a new master but still no joy.

The problem I have is that I cant clear all the air bubbles out, I have tried 2 ezi bleeds, the old fashioned way, and finally called out a breakdown service who were also stumped, but did say the slave seemed fine.

So have I just got a duff master (from Weekleys, who have always been spot on the past) or is there a trick Im missing?

Thanks

matt
 
Matt

I was told by someone that if the problem happens you describe, then remove the two bolts securing the slave cylinder and let it hang down so its supported by the flexible pipe. With bleed nipple pointing upwards, loosen the nipple to allow any air to vent out.

Obviously make sure no one depresses the clutch pedal whilst you are carrying this out.

Hope this helps, regards

Mike
 
Another one to try is vacuum bleeding, we have a similar problem on 820's and this is the only way to bleed them properly.

Basically you suck the fluid through from the slave cylinder nipple, rather than pumping through from the master.

Have a look HERE for details.

Richard
 
Upside down is good, and while doing so push in the piston with a rod or screwdriver, then tighten up that bleed screw.

Worked for me

Dick West
 
Hi,

I have just refurbished my car's master cylinder at the weekend & 3 things came up:

Firstly, use of an 'eezibleed'(?) with lots of rapid short presses of the clutch pedal seemed best. I had to take the master off twice, so I got some experience! Looking from underneath, the air bubbles in the connecting pipe were seen to be removed best this way.

Second, make sure the master cylinder / pedal travel is adjusted per the book. Mine has been wrong for the last 10 years - now I don't have a real notchiness anymore.

Third, the tip about the slave is a good one - push the piston in whilst bleeding to evacuate all the air from it.

Good luck,

Phil (East Yorks RO)
 
Thanks for all the suggestions, we went with taking the slave off and holding it above the engine bay and pressing the clutch and slave together/alternately until it bled through, now its rock hard and the car is rundling around happy again.

I loved the idea of a DIY suction pump, but wasnt allowed out wih the Dyson until I had proff the car was fixed!

Matt
 
You must log in or register to reply here.
Back
Top