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[Healeys] Bleeding brakes

To: "'Healey List'" <healeys@autox.team.net>
Subject: [Healeys] Bleeding brakes
From: "Simon Lachlan" <simon.lachlan@homecall.co.uk>
Date: Sat, 4 Jul 2015 12:05:43 +0100
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
Thread-index: AdC2SVqcI0XpdQ7hTwelS5rHxtRfoQ==
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Bleeding the furthest brakes is all very well, but not infallible. ie it is
"best practise" but, in itself does not guarantee success. Many of us have
been driven mad by spongy brakes after somehow failing to get all the air
out. I know that I have.

I've got various manuals and one of my two BMC has this paragraph:-

 

"If the bleeding of any cylinder continues without success for a
considerable time it is

possible that air is being drawn in past the bleeder screw threads. In such
cases tighten

the bleeder screw at the end of each downward stoke of the pedal and allow
the pedal to

return fully before re-opening it. Close the bleeder screw finally during
the last pedal

application."

ie you close the bleeder while fluid is still coming out. Messy, but it
works. The theory is that the air gets past the thread as you close it.
Fairly coarse threads. Pretty old bits of iron...plenty of wear.

 

If you use an Eazibleed or similar, it becomes easier. Just open the bleeder
a little and leave it open until the bubbles stop.

Worth bearing in mind.

 

Simon


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style=3D'text-autospace:none'><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>Bleeding =
the furthest brakes is all very well, but not infallible. ie it is =
&#8220;best practise&#8221; but, in itself does not guarantee success. =
Many of us have been driven mad by spongy brakes after somehow failing =
to get all the air out. I know that I have.<o:p></o:p></span></p><p =
class=3DMsoNormal style=3D'text-autospace:none'><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>I&#8217;ve=
 got various manuals and one of my two BMC has this =
paragraph:-<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-autospace:none'><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'><o:p>&nbsp=
;</o:p></span></p><p class=3DMsoNormal =
style=3D'text-autospace:none'><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>&#8220;If =
the bleeding of any cylinder continues without success for a =
considerable time it is<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-autospace:none'><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>possible =
that air is being drawn in past the bleeder screw threads. In such cases =
tighten<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-autospace:none'><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>the =
bleeder screw at the end of each downward stoke of the pedal and allow =
the pedal to<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-autospace:none'><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>return =
fully before re-opening it. Close the bleeder screw finally during the =
last pedal<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>applicatio=
n.&#8221;<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>ie you =
close the bleeder while fluid is still coming out. Messy, but it works. =
The theory is that the air gets past the thread as you close it. Fairly =
coarse threads. Pretty old bits of iron...plenty of =
wear.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'><o:p>&nbsp=
;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>If you =
use an Eazibleed or similar, it becomes easier. Just open the bleeder a =
little and leave it open until the bubbles stop.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>Worth =
bearing in mind.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'><o:p>&nbsp=
;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;font-family:"TimesNewRoman","serif"'>Simon</spa=
n><o:p></o:p></p></div></body></html>
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