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Bleeding brakes.....

Posted: 01 May 2009, 18:12
by syncrodoug
I have fitted T5 calipers front and rear with T5 servo and master cylinder.
I can do a 'basic' gravity bled and get things nearly right* but when I try with my Sealey vacuum bleed kit all I get is extraneous air (leakage between nipple threads??), doesn't seem capable of drawing fluid.
I attach bleed tube etc to nipple, operate vaccum pump which draws the required vacuum 21inHg which holds reasonably well, crack nipple 1/4 turn, lots of bubbles in receiver.
What am I doing wrong?
Are T5 calipers not design for vacuum bleeding?
Or what??
Doug
* That's hard pedal at about 25% pedal deflection with engine off, pedal down to the floor with engine on.
PS No fluid leaks from system.

Re: Bleeding brakes.....

Posted: 01 May 2009, 18:18
by jed the spread
My van does it allright, maybe its the t5 callipers. Bloody messing around with stuff :lol:

jed

Re: Bleeding brakes.....

Posted: 01 May 2009, 18:48
by jamesc76
Lather the bleed nipple and connection to the bleed kit in copper slip that stops the air getting in plus once its suckin give the pedal a few pumps really helps it along used mine like that for years !!

Re: Bleeding brakes.....

Posted: 01 May 2009, 19:34
by syncrodoug
Many thanks, will give copper slip a try tomorrow

Re: Bleeding brakes.....

Posted: 02 May 2009, 21:23
by syncrodoug
All is well with the world thanks to Copper Slip and PTFE tape - belt and braces!

Re: Bleeding brakes.....

Posted: 02 May 2009, 22:19
by Oldiebut goodie
This is where the pressure bleeding kits score over the vacuum!