Sierra
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| posted on 6/5/13 at 10:52 AM |
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Brake bleed?
I'm fitting a couple of new cylinders, a tee piece and a pressure switch.
What would be the easiest way to do this? Would I need to completely bleed/drain the system or is there an easier way?
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britishtrident
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| posted on 6/5/13 at 01:10 PM |
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quote:
Originally posted by Sierra
I'm fitting a couple of new cylinders, a tee piece and a pressure switch.
What would be the easiest way to do this? Would I need to completely bleed/drain the system or is there an easier way?
Work on one circuit at a time. Here is how to do it with minimum bleeding and fluid loss.
Don't drain the system, top up the reservoirs to the brim and stretch a couple of layers of cling film over the top tightly secured with an
elastic band to give an air tight seal. That will let you remove the old cylinders.
Put a bleed nipple in the cylinder outlet and connect the reservoir (removing the cling film) and prime the cylinder by hand bleeding through the
nipple on the master cylinder outlet. Either get an assistant to hold the pedal down or use the cling film trick while you reconnect the
pipe.
You can then change the tee piece -- if you can do it quickly get an assistant to hold down the pedal while you work or do the cling film
trick.
You are then ready bleed the system with the assistant read to work the pedal (or a pressure bleeder connected ) start by slackening off either
the brake switch or the outlet connector on the Tee with a cloth ready to catch the fluid (beware fluid spray) get the assistant to slowly press
the pedal down to floor and hold then tighten the union. You can then bleed the brakes normally two or three on pumps on each circuit should get
any air out.
The key to manual bleeding is slow pumping especially on the return stroke
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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Sierra
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| posted on 6/5/13 at 01:57 PM |
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Thanks for all the info. The only issue is I'm going from one master to two with two new reservoirs.
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