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Brake bleeding
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Author:  Matty H [ Sun Sep 03, 2017 7:31 pm ]
Post subject:  Brake bleeding

Anyone had trouble bleeding brakes on libra.
I have changed master cylinder and can not get full pedal back and I have tried my easybleeder which pressurises the system and pedal pump method.
Any suggestions or methods to use would be helpful.
Matty

Author:  sanzomat [ Sun Sep 03, 2017 8:42 pm ]
Post subject:  Re: Brake bleeding

I did a complete fluid change on mine soon after I got it. I used an eezibleed - pressurised off a tyre. I had no problems. Only thing to remember is to start with the longest run of pipe and finish with the shortest. Also, if you have the AP four pots they have two bleed nipples. You have to do the outside first and then the inside.

Author:  gtmdriver [ Mon Sep 04, 2017 12:24 pm ]
Post subject:  Re: Brake bleeding

I've found that, with an empty master cylinder, the most effective way of bleeding the system is to suck rather than blow or pump.

I use a compressor powered vacuum pump but one of the hand pumped vac pumps will also work. I've even seen a simple syringe being used to draw fluid through the system.

When I rebuilt the hydraulic cylinders on my 1974 Honda CB350F I couldn't get it to pump any fluid through at all using the brake lever so (and I'm not advising this) I just opened the bleed nipple, stuck the other end of the bleed tube in my mouth and sucked till I saw fluid appear in the bleed tube. It bled through fine after that.

I was using silicone fluid not the normal glycol based stuff.

Author:  Matty H [ Mon Sep 04, 2017 8:04 pm ]
Post subject:  Re: Brake bleeding

Had another go tonight wound both rear 600 calipiers all the way in and wedged them then started by bleeding the two pipes at the master cylinder.
Then rear passengers then drivers then to the front passengers and front drivers which appeared to have some air in it.
I am using the eeezibleeder on tyre job.
Pedal does feel a bit better but going to go right round again tomorrow.
Did not know if the strange routing around the exhaust has caused any issues.
Matty

Author:  Phaeton [ Thu Sep 07, 2017 10:28 am ]
Post subject:  Re: Brake bleeding

Depending on what MC you are using you may have to bench bleed the MC on it's own, only ever had to do this once can't remember which car.

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