jt_armstrong

jt_armstrong

Well-Known Member
Hi everyone

A few weeks back I changed out the rear brake pipes (including the 4 flexi's) and calipers. At the time I did not bleed them becuase I was busy srtipping down the top half of the engine. Having finished the engine earlier in the week I went to bleed the brakes this afternoon with the procedure in RAVE. The master cylinder and fronts went perfect but I can't even get any fluid out of the rears. I checked the fluid level and it had not dropped despite attempting to bleed them for over 10 mins.

Anybody goy any ideas?
 
Are you using a pressure bleed kit ???
Also bear in mind that the new pipes are probably empty and need filling with fluid from the front of the car back.
 
Irishrover said:
Are you using a pressure bleed kit ???
Also bear in mind that the new pipes are probably empty and need filling with fluid from the front of the car back.
Click to expand...

Hi John, not using a pressure bleed kit as it wasn't mentioned in RAVE. Is there something I need to do get fluid into the new pipes?
 
You can do it the old way, it will take longer, much better and easier to use a pressure or vac. kit, the added advantage is that the pressure kit keeps the tank topped up and can be used without having an assistant pumping the pedal and keeping an eye on the fluid level. They are cheap enough to buy.
 
jt_armstrong said:
Hi everyone

A few weeks back I changed out the rear brake pipes (including the 4 flexi's) and calipers. At the time I did not bleed them becuase I was busy srtipping down the top half of the engine. Having finished the engine earlier in the week I went to bleed the brakes this afternoon with the procedure in RAVE. The master cylinder and fronts went perfect but I can't even get any fluid out of the rears. I checked the fluid level and it had not dropped despite attempting to bleed them for over 10 mins.

Anybody goy any ideas?
Click to expand...

Get someone sat in car, pump pedal up and keep pressure on it. Undo rear bleeder lock it off and do same again.. Keep doing this until you get fluid. Reason your not getting anything is, it is easier for system to suck air back and forth along empty pipes than it is to suck fluid out of reservoir. Or use the pressure bleeding kit as Irish says, much simpler.
 
wammers said:
Get someone sat in car, pump pedal up and keep pressure on it. Undo rear bleeder lock it off and do same again.. Keep doing this until you get fluid. Reason your not getting anything is, it is easier for system to suck air back and forth along empty pipes than it is to suck fluid out of reservoir. Or use the pressure bleeding kit as Irish says, much simpler.
Click to expand...

Hi Tony

The method you are describing is what I have been doing and in addition I connect a tube from the bleed nipple to a bottle containing some fluid so it is easier to see air bubbles and doesn't suck back air.

Is there something I need to do to prime the rear pipes?
 
are you shutting the bleed nipple off before releasing pedal for next pump? If not, air will go back up.
Anyway, i think each stroke will only push fluid a couple of cm, so will take quite a while with empty pipes the whole length...
 
Problem solved. Whilst my bleeding method was sound it sure helps if you not only tighten all the new connectors but also if you actually connect both ends of the passenger side flexi :eek:
Brakes all bled and oh what a difference new discs, calipers and carriers makes.
 
jt_armstrong said:
Problem solved. Whilst my bleeding method was sound it sure helps if you not only tighten all the new connectors but also if you actually connect both ends of the passenger side flexi :eek:
Brakes all bled and oh what a difference new discs, calipers and carriers makes.
Click to expand...

Yes John i am sure that made all the difference.:):):)
 
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