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Use Eesybleed on MC or vacuum pump at bleed nippels.
Kees Oudesluijs
Op 2-7-2016 om 20:48 schreef Roger Grace:
>
> At my wits end with this problem ...
>
> The brakes on my BJ8 have always been hard and bit well with little
> pedal movement.
>
> Changed out the front callipers (to 4 pot) and the problems started.
>
> After repeated bleeding on first push,pedal went to the floor.
>
> After 2/3 pumps the pedal came right up and held.After about 30 secs
> of no pressure on pedal goes to the floor again.
>
> Pistons are all in contact with pads and pads with disc; all looks
> good at callipers.
>
> Suspecting a faulty MC changed it out.
>
> Primed the new MC with fluid prior to installing.
>
> Same story after another 1.5 pints of DOT 4 fluid focusing mainly on
> bleeding front callipers and booster (new); also bled rear drums.
>
> Pedal still goes to the floor on first pump and comes up after pumping
> as before.
>
> No visible leaks and inlet from reservoir shows no leaks: tapped
> callipers with mallet to dislodge any air pockets.
>
> I am using the one man bleed system a with clear tube into a container
> and close the bleeder valve with no visible air at nipple and full
> tube of fluid to container. BTW also changed clutch MC at same time
> and no problems with bleeding etc.
>
> Have now run about 1.5 pints of fluid through the new MC - perhaps am
> being too impatient ?
>
> But no evidence of any air after about 0.5 pint. Typically how much
> fluid is required to clear air from MC and lines ?
>
> Now sort or suspecting the inlet to MC from reservoir but for life of
> me cannot see how air can get in with no visible fluid leaks,
>
> Any ideas from the more AH experienced listers appreciated.
>
> rg
>
>
>
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<div class="moz-cite-prefix"><br>
Use Eesybleed on MC or vacuum pump at bleed nippels.<br>
<br>
Kees Oudesluijs<br>
<br>
<br>
<br>
Op 2-7-2016 om 20:48 schreef Roger Grace:<br>
</div>
<blockquote
cite="mid:C45997DD4B7440B4B3E0A3BEBDF34E5D@WINDOWST93OFP9"
type="cite">
<meta http-equiv="Context-Type" content="text/html;
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<div>
<p class="MsoNormal">At my wits end with this problem
<span> </span>...</p>
<p class="MsoNormal">The brakes on my BJ8 have always been
hard and bit well with little pedal movement.</p>
<p class="MsoNormal">Changed <span> </span>out the front
callipers (to 4 pot) and the problems started.</p>
<p class="MsoNormal">After repeated bleeding on first push,<span>
</span>pedal went to the floor.</p>
<p class="MsoNormal">After 2/3 pumps the pedal came right up
and held.<span> </span>After about 30 secs of no pressure
on pedal <span> </span>goes to the floor again.</p>
<p class="MsoNormal">Pistons are all in contact with pads and
pads with disc; all looks good at callipers.</p>
<p class="MsoNormal">Suspecting a faulty MC changed it out.</p>
<p class="MsoNormal">Primed the new MC with fluid prior to
installing.</p>
<p class="MsoNormal">Same story after another 1.5 pints of DOT
4 fluid focusing mainly on bleeding front callipers and
booster (new); <span> </span>also bled rear drums.</p>
<p class="MsoNormal">Pedal still goes to the floor on first
pump and comes up after pumping as before.</p>
<p class="MsoNormal">No visible leaks and inlet from reservoir
shows no leaks: tapped callipers with mallet to dislodge any
air pockets.</p>
<p class="MsoNormal">I am using the one man bleed system a
with clear tube into a container and close the bleeder valve
<span> </span>with no visible air at nipple and full tube of
fluid to container. BTW also changed clutch MC at same time
and no problems with bleeding etc.</p>
<p class="MsoNormal">Have now run about 1.5 pints of fluid
through the new MC - <span> </span>perhaps am being
<span> </span>too
impatient ? <span> </span></p>
<p class="MsoNormal">But no evidence of any air after about
0.5 pint. Typically how much fluid is required to clear air
from MC and lines ?</p>
<p class="MsoNormal">Now sort or suspecting the inlet to MC
from reservoir but for life of me cannot see how air can get
in with no visible fluid leaks,</p>
<p class="MsoNormal">Any ideas from the more AH experienced
listers appreciated.</p>
<p class="MsoNormal">rg</p>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
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</blockquote>
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