stretch
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| posted on 2/7/07 at 12:27 PM |
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brake bleeding
i raised my master brake cylinder a bit to give me more leverage when braking
problem is now i disconnected the pipes from the master cylinder - so prob. some air got into the pipes there i assume
question now is, bleeding them will basically mean moving that little air gap all the way thru the brake lines.
is there an easy way of getting this sorted out?
maybe pushing fluid up from the wheels into the master cylinder?
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RazMan
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| posted on 2/7/07 at 12:35 PM |
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Moving the master cylinder? I presume you mean moving the pivot point of the pedal / m/c ?
Air has to be simply pushed out by the age-old method of pumping the pedal while having a bleed hose on the caliper. If you pump it until fresh fluid
appears in the tube you will have made sure that the system is free of air. I normally use .5 litre on a major system overhaul.
The Eezibleed system works for some people but personally I hate it - using compressed air from a spare tyre fails to get all the air out and the
pedal needs to be pumped hard to expell all the trapped air imo.
[Edited on 2-7-07 by RazMan]
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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worX
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| posted on 2/7/07 at 01:49 PM |
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as above - it needs to bled the conventional way.
I do use the easibleed device, but not actually how it's intended - I still lock off the nipple every pump, just as it is done with a straight
hose into fluid.
Steve
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greggors84
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| posted on 2/7/07 at 07:44 PM |
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I read in PPC magazine a tip about getting air pockets out of the lines.
It said, pump the brakes until hard, then go round opening and locking off the nipples in turn.
Thats all its said, maybe repeat a couple of times then bleed in the conventional way as said bleed until new fluid comes through.
Chris
The Magnificent 7!
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stretch
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| posted on 3/7/07 at 06:53 AM |
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sorted
so, as i said before i knew that all the lines were full off fluid, just airpockets at the MS
i loosen'd all the connection on the MS and gave it a few pumps (a bit messy) pumped till each one squirted out fluid
tightened then and went for a test drive
- its now doing 4 wheel slides when slamming on the brakes with just moderate effort
in the end the problem was just that there was air in the MS from removing it and putting it back again
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RazMan
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| posted on 3/7/07 at 07:04 AM |
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stretch - I would strongly recommend that you bleed the calipers too! I once made the mistake of reconnecting my clutch m/c without a
'proper' bleed - my clutch failed about two weeks later due to an air pocket reaching the slave cylinder and it needed bleeding to restore
it.
You can't take any chances with brakes
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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stretch
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| posted on 3/7/07 at 07:14 AM |
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jipjip
yes, i agree - figured as much, just didn't really feel like it last night
i should hopefully get to it over the weekend
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