<div style="color:black;font: 12pt Comic Sans MS, sans-serif;">The bubble will perhaps migrate to the highest point & if that is the reservoir then it might escape, but this only applies if the path is always up. Then bubble will never migrate on its own down. Also, the system is not pushing on the bubble in any single direction. If the system is under pressure, the is uniform throughout the entire system. Essentially, the bubble, being lighter than the fluid, trying to float. Bleeding the system is different, there is flow of the fluid to help move the bubble.
<div>Gary<br>
<br>
<div style="font-family:arial,helvetica;font-size:10pt;color:black"><font size="2">-----Original Message-----<br>
From: Hank Leach <gradea1@charter.net><br>
To: 'greylinn@ozemail.com.au' <greylinn@ozemail.com.au><br>
Cc: 'Michael Salter' <michaelsalter@gmail.com>; 'warthodson@aol.com' <warthodson@aol.com>; 'healeys@autox.team.net' <healeys@autox.team.net><br>
Sent: Mon, Mar 13, 2023 7:15 pm<br>
Subject: Re: [Healeys] 100 brakes<br>
<br>
<div id="yiv3087073810">Peter-yea, what I think happens there, providing there are no leaks anywhere else, is that under pressure, overnight, the system "pushes" the air bubble to the only place that it can get out-the vent hole in the canister!
<div><br clear="none"></div>
<div>I have used this method also for "final bleeding"...could be a line item on an invoice to look official and garner more dough, Ha. Hank<br clear="none"><br clear="none">
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<div id="yiv3087073810yqt65969" class="yiv3087073810yqt2070115855">
<div>-----------------------------------------</div>
From: "greylinn--- via Healeys" <br clear="none">To: "Michael Salter"<br clear="none">Cc: healeys@autox.team.net<br clear="none">Sent: Monday March 13 2023 4:02:50PM<br clear="none">Subject: Re: [Healeys] 100 brakes<br clear="none"><br clear="none">
<div class="yiv3087073810WordSection1">
<div class="yiv3087073810MsoNormal"><span>Michael assuming you have some
resistance after pumping the pedal, jam the pedal down hard and
leave it at least overnight, preferably longer. Do this repeatedly
& you will find the pedal comes up. Don’t ask me why, but I’ve done
this several times with my own and other people’s cars, and it
works!<br clear="none"><br clear="none">
Cheers</span></div>
<div class="yiv3087073810MsoNormal"><span> </span></div>
<div class="yiv3087073810MsoNormal"><span>Peter</span></div>
<div class="yiv3087073810MsoNormal"><span> </span></div>
<div style="border:none;border-top:solid #E1E1E1 1pt;padding:3pt 0cm 0cm 0cm;">
<div class="yiv3087073810MsoNormal"><b><span lang="en-us">From:</span></b>
<span lang="en-us">Healeys <healeys-bounces@autox.team.net>
<b>On Behalf Of</b> Michael Salter via Healeys<br clear="none"><b>Sent:</b> Tuesday, 14 March 2023 5:43 AM<br clear="none"><b>To:</b> warthodson@aol.com<br clear="none"><b>Cc:</b> healeys@autox.team.net<br clear="none"><b>Subject:</b> Re: [Healeys] 100 brakes</span></div>
</div>
<div class="yiv3087073810MsoNormal"> </div>
<div>
<div class="yiv3087073810MsoNormal">This article may help.</div>
<div>
<div class="yiv3087073810MsoNormal"><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://precisionsportscar.com/bleeding-austin-healey-4-wheel-drum-brakes/">
</a><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://precisionsportscar.com/bleeding-austin-healey-4-wheel-drum-brakes/">https://precisionsportscar.com/bleeding-austin-healey-4-wheel-drum-brakes/</a></div>
</div>
</div>
<div class="yiv3087073810MsoNormal"> </div>
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<div>
<div class="yiv3087073810MsoNormal">On Tue., Mar. 14, 2023, 7:54 a.m.
warthodson--- via Healeys, <<a rel="nofollow noopener noreferrer" shape="rect">healeys@autox.team.net</a>>
wrote:</div>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC 1pt;padding:0cm 0cm 0cm 6pt;margin-left:4.8pt;margin-right:0cm;">
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">We are
having a very difficult time adjusting & bleeding the brakes on a
friend's BN1.</span></div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">The car
has recently under a full ground up restoration so things like
brake lines including flex lines are new, seals in the brake
cylinders are new, the master cyl. is new, etc.</span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">We bleed
the system so many times different way that I have lost
track. </span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">We have
adjusted the free play to assure that the plunger is able to return
to the full "off" position.</span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">When we
adjust the operating rod to achieve the specified 1/8" free
movement at the pedal.</span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">We have
adjusted the brake shoes to have a very slight drag at
rest.</span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">Our
issue is:</span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">Excessive
brake pedal travel before the brakes begin to be
effective. </span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">Pumping
the brakes temporarily improve the pedal travel issue, which we
think indicates air still in the system.</span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">We are
not having any leaks & the reservoir port is functioning correctly,
IE: no locking up of the brakes. </span></div>
</div>
<div>
<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">Gary</span></div>
</div>
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<div class="yiv3087073810MsoNormal"><span style="font-size:12pt;font-family:'Comic Sans MS';color:#000000;">
</span></div>
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</div>
</blockquote>
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