[Mk2] [Generic] bleeding clutch with pressure bleeder

[cantfindausername]

I'm still having serious trouble getting any kind of operation from my Tilton clutch. We've put so much fluid through the system its silly!

I'm using a pressure bleeder, and want to know what I shuld expect to see. At the moment we're running aprx 15psi through it and only seeing a trickle of fluid out of the bleed pipe.

Is this right? Will the pressure lose force as it travels the distance of the car? Or should I expect to see a good strong flow out of it?

If anyones got any advice on what else I can try, I would love to hear it!!

Thanks,
Ant (stressed)

[Bry]

Try craking open all the joints in the clutch line starting at the reservoir end,to see if there's an air lock in one of them

[simmo490]

when u bleed the clutch make sure u bleed the check valve which is on the bulkhead near the master. this is nearly the cause of all belleding probs.

so fill up master

bleed check valve

bleed slave cylnder

BTW IMO a pressure bleeder is a load of crap and it may not even pressure bleed with that check valve in there

[cantfindausername]

This is the first I've heard of this check valve!!

Where abouts is it? Got any pics of its location? I'll have a looksee in the BGB to see if I can find it.

[cantfindausername]

I've just had a look in the BGB and there's no mention of this check valve.

[simmo490]

follow the master clynder line and there should be a brass union it goes to which is bolted to the bulkhead, bleed either side of this

[cantfindausername]

oh yeah. I hadn't noticed that before. Will give it a looking over. Looks a right pain in the ar$e to do

[simmo490]

no probs mate hope it helps

[cantfindausername]

ok just put the pressure bleeder on and undid the joints on each side in turn. Both bled fluid out of them.

Here is a video I did about an hour ago looking through where the relase fork uesd to live.

http://www.youtube.com/watch?v=sw0IHkt84CA

[simmo490]

so is it working then?

[cantfindausername]

no. the bearing is goin in and out as it should as can be seen in the video. But I'm not sure if its doing it far enough or what.

Just at a complete loss at the moment.

[simmo490]

without been there not a clue mate

[cantfindausername]

Im here and I still have no clue

I've just emailed the video to Tiltons Managing Engineer to ask for his opinion on whats happening.

[benmumford1]

I had same problem but i wasnt using a pressure bleeder. Was getting some movement but not enough I just kept at it (couple of hours stress) and it finally came good. Try it without the pressure bleeder and with a mate and open and close bleed nipple on every push + pull.
Ben.

[Ian Geary]

yeah, I pumped about a litre of fluid through my clutch using an ezi-bleed 1-way valve, and there was virtually no pedal feel after that.

Once i got a helper, and did it the old fashioned way (open-pump down-close-lift up, it was done in 10 minutes).

So is the clutch slave piston moving at all? You should see move out and push the clutch release fork.

With a tube over the slave bleed nipple, you should feel the fluid squirting out of the nipple at each press. Every 3 or 4 presses you need to top up the master cylinder of course.

hth

Ian

[cantfindausername]

This clutch doesn't use a slave cylinder or release fork. It has a hydralic release bearing which is what in that video.

There have been 3 of us bleeding the clutch at most times. One on fluid duty, one on the pedal, one on the nipple.

I'm reckoning on about 9-10ltrs of fluid have gone through this now easily.

We're going to try adjusting the pedal rod next I think. See if that helps matters.

[mr2turbo117]

you tried the bleed nipple at the front, next to where you put the fluid in, this is what got me , then bleed it after that then all should be

[cantfindausername]

Where the hell is the bleed nipple at the front? I'm finding out all sorts of new stuff on this at the mo that I was unaware of before.

Can you explain where it is so I can have a look and go at bleeding that.

Thanks,
Ant

[mr2turbo117]

its not as such a bleed nipple but i was getting no air out the gearbox side and when i undone this and then bleed it again, my clutch has been fine eversince.

good luck

[cantfindausername]

Ahh right... Yeah thats the first union on the master cylinder.

I've undone that and had fluid running out. Have also done both sides of the check valve a little further down the hard pipe.

Will be trying adjusting the pedal rod, and potentially swapping the master cylinder