Thread: Brake Bleed

On the powerbleed,, did the pump slow down and speed up as you locked off the nipples?

Originally Posted by Pedro_The_Swift

On the powerbleed,, did the pump slow down and speed up as you locked off the nipples?

And it's not even Friday night.

always Friday night at our house

Originally Posted by abaddonxi

And it's not even Friday night.

Notice that Mattg used "I" not "we"... are you imlpying its a solo effort

Originally Posted by Pedro_The_Swift

On the powerbleed,, did the pump slow down and speed up as you locked off the nipples?

yes it did slow down with the nipple shut off but I didn't run it long after it was shut off.

And i'm with pedro. If you have to wait till friday night you are doing somthing wrong, stop playing with your disco and go and do the dishes or vac the floor...... does wonders.

Well. I am all out of Ideas.

We (my wife and I) have Manually bled without the engine running, then did a power bleed with the ABS. Then a Power bleed and Manual Bleed with it running.

I then parked it on the hill with the engine facing down the hill over night.

repeated all of the above. Pumping enough fluid through the system to fill the res 3 times. The fluid is flowing very nicely, perfectly clear and bubble free.

With the engine running the pedal still requires a pump to bring it up hard take your foot off for a few seconds and back on the brake on the pedal slowly falls to the floor

This is with new pads recoed Callipers and new braided lines. Not loosing fluid anywhere.

HAVE I MISSED SOMETHING. I have never had this much trouble trying to bleed a system. This is not making sense.

Your urgent help is appreciated. any ideas?

matt

No idea Matt ? ... maybe a faulty brake master cylinder ... or vacum booster circuit ??

When I bled my D2a brakes I used the Nanocom for a power bleed, didn't keep an eye on the reservior, and got air into the system ... was quicker to go back to the two man pedal down, nipple open/close, and repeat. Was quick to do (on all 4 wheel) and the brakes were good to go! Pretty simple really.

Check the vacum lines maybe is about all I can suggest at the moment ... or a dodgy master cylinder ... but it was Ok before you started the caliper rebuild, right ?

RAVE shows the bleed sequence for RHD as ...

1 - Front LH
2 - Front RH
3 - Back LH
4 - Back RH

... but a sinking pedal normally would'nt be air in the system.

Kev..

Hey Kev

The inside fire wall is as dry as a bone. I don't think it is the master Cylinder.

I have done a EGR removal. I have blanked off the applicable Vac lines as per the description on here

www.discovery2.co.uk /workshop - EGR removal

I will try and get my rave disc working tonight and see if I can find the vac diagram.

Any other ideas out there

Cheers

Matt