<html><body>Agree with all suggestions. Sucking is better than pumping, as the pump method moves such a small quantity of fluid throughout the system. Yes, the early bleeders used a check ball seal and are proper providing you use the early rounded bleeder screw. If you use the later screw, it is pointed, but the cylinder body many not mate well with it. Use all original parts to insure good results. The new check ball comes in the rebuild kit.<div><br></div><div>My thought on the 2x4 bleed method is that having the system under pressure overnight, the air bubble that is causing the soft pedal is eventually expelled thru the reservoir tank vent hole. That is the only real "opening" in the system, but a natural escape route. Hank<br><br><div class="reply-new-signature"></div><p>-----------------------------------------</p>From: "Alan Seigrist" <healey.nut@gmail.com><br>To: simon.lachlan@alexarevel.plus.com<br>Cc: "Healeys"<br>Sent: Wednesday August 31 2022 4:43:43AM<br>Subject: Re: [Healeys] BN1 brake system<br><br>
<div>Actually - part of the problem is the BN1 and some
BN2 bleeder valves originally had a separate ball inside the
slave’s bleeder which the little ball sealed the system. Over
the years i’m sure that ball has been lost and maybe you think the
bleed screw is sealing the slave when it really isn’t until it’s
fully cinched. That also can contribute to the inability to
get a firm pedal. </div>
<div><br></div>
<div>Cheers,</div>
<div><br></div>
<div>Alan</div>
<div><br><div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, 31 Aug 2022 at 4:16 PM,
Simon Lachlan via Healeys <<a>healeys@autox.team.net</a>>
wrote:<br></div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px .8ex;border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204);">
<div lang="en-gb">
<div class="m_-9048889340569780999WordSection1">
<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri, sans-serif;">Yes, for sure, an
Eezibleeder helps. Keep the air pressure down, maybe a bit less
than suggested in the destructions.</span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri, sans-serif;">Otherwise, see
this, below, from one of my manuals. (Curiously, not in all of
them).</span></p>
<p class="m_-9048889340569780999MsoBodyText" style="margin-right:13.55pt;margin-left:5.95pt;margin-bottom:.0001pt;">
<span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;">“</span><span lang="en-us">“If the <span style="letter-spacing:-.05pt;">bleeding</span> of any cylinder continues
<span style="letter-spacing:-.05pt;">without</span> <span style="letter-spacing:-.05pt;">success</span> for a <span style="letter-spacing:-.05pt;">considerable</span> <span style="letter-spacing:-.05pt;">time,</span> it is possible that air is
being drawn in past the <span style="letter-spacing:-.05pt;">bleeder</span> <span style="letter-spacing:-.05pt;">screw</span> threads. In <span style="letter-spacing:-.05pt;">such</span> cases tighten the bleeder
<span style="letter-spacing:-.05pt;">screw</span> at the end of
each downward stroke* of the pedal and <span style="letter-spacing:-.05pt;">allow</span> the pedal to return fully
before re-opening it. Close the <span style="letter-spacing:-.05pt;">bleeder</span> <span style="letter-spacing:-.05pt;">screw</span> <span style="letter-spacing:-.05pt;">finally</span> <span style="letter-spacing:-.05pt;">during</span> the last <span style="letter-spacing:-.05pt;">pedal</span> <span style="letter-spacing:-.05pt;">application.”</span></span></p>
<p class="m_-9048889340569780999MsoBodyText" style="margin-right:13.55pt;margin-left:5.95pt;margin-bottom:.0001pt;">
<span lang="en-us" style="letter-spacing:-.05pt;">*ie to prevent
air being drawn in during the upward passage of the pedal. (SDL
14/08/2019)”</span></p>
<p class="m_-9048889340569780999MsoBodyText" style="margin-right:13.55pt;margin-left:5.95pt;margin-bottom:.0001pt;">
<span lang="en-us">I suppose that, the brakes being old, the
threads get worn and let air back in as the pedal goes back up. So,
I tighten the bleeder as the fluid is still coming out, ie before
the downward stroke is finished. Slows the process up somewhat and
tries the patience of ones wifely assistant.</span></p>
<p class="m_-9048889340569780999MsoBodyText" style="margin-right:13.55pt;margin-left:5.95pt;margin-bottom:.0001pt;">
<span lang="en-us">Good luck anyhow.</span></p>
<p class="m_-9048889340569780999MsoBodyText" style="margin-right:13.55pt;margin-left:5.95pt;margin-bottom:.0001pt;">
<span lang="en-us">Simon</span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri, sans-serif;"> </span></p>
<p class="MsoNormal"><span style="font-size:11pt;font-family:Calibri, sans-serif;"> </span></p>
<div>
<div style="border-style:solid none none;border-top-width:1pt;padding:3pt 0cm 0cm;border-top-color:rgb(225,225,225);">
<p class="MsoNormal"><b><span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;">From:</span></b>
<span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;">Healeys
<<a style="font-family:Calibri, sans-serif;">healeys-bounces@autox.team.net</a>>
<b style="font-family:Calibri, sans-serif;">On Behalf Of</b> David
Leong via Healeys<br><b style="font-family:Calibri, sans-serif;">Sent:</b> 31 August 2022
06:19<br><b style="font-family:Calibri, sans-serif;">To:</b> 'Healey List
(<a style="font-family:Calibri, sans-serif;">healeys@autox.team.net</a>)'
<<a style="font-family:Calibri, sans-serif;">healeys@autox.team.net</a>><br><b style="font-family:Calibri, sans-serif;">Subject:</b> Re:
[Healeys] BN1 brake system</span></p>
</div>
</div>
<p class="MsoNormal"> </p>
<p class="MsoNormal"><span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31,73,125);">
Use a power pressure bleeder (I have a Motive Bleeder) and tap on
the slaves to loosen any air bubbles. Make sure there are no high
spots where air can get trapped and not be purged out of the
bleeder screw</span></p>
<p class="MsoNormal"><span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31,73,125);">
</span></p>
<div>
<p class="MsoNormal"><span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31,73,125);">
</span></p>
<p class="MsoNormal"><b><i><span lang="en-us" style="font-size:20pt;font-family:'Brush Script MT';color:rgb(38,38,212);">
Dave</span></i></b></p>
</div>
<p class="MsoNormal"><span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;color:rgb(31,73,125);">
</span></p>
<div>
<div style="border-style:solid none none;border-top-width:1pt;padding:3pt 0cm 0cm;border-top-color:rgb(225,225,225);">
<p class="MsoNormal"><b><span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;">From:</span></b>
<span lang="en-us" style="font-size:11pt;font-family:Calibri, sans-serif;">Healeys
<<a style="font-family:Calibri, sans-serif;">healeys-bounces@autox.team.net</a>>
<b style="font-family:Calibri, sans-serif;">On Behalf Of</b>
warthodson--- via Healeys<br><b style="font-family:Calibri, sans-serif;">Sent:</b> Tuesday, August
30, 2022 5:27 PM<br><b style="font-family:Calibri, sans-serif;">To:</b> <a style="font-family:Calibri, sans-serif;">healeys@autox.team.net</a><br><b style="font-family:Calibri, sans-serif;">Subject:</b> [Healeys]
BN1 brake system</span></p>
</div>
</div>
<p class="MsoNormal"><span lang="en-us"> </span></p>
<div>
<div>
<p class="MsoNormal"><span lang="en-us" style="font-family:'Comic Sans MS';color:#000000;">We have been
trying for several months to bleed the brakes on RHD BN1, to no
avail. The car has been professionally restored & appears to be in
excellent condition. Today, we tried again to bleed the system
following the shop manual. I.E. backing off the adjusters on the
front & back & bleeding & then readjusting the brakes. The results
were the same. There seems to be an excessively large amount of
pedal travel before the brakes are engaged & when engaged they feel
"spongy". We have access to 2 other 100's for reference. Any help
would be greatly appreciated. Also, we are not clear on the
adjustment of the free play of the master cylinder. </span></p>
<div>
<p class="MsoNormal"><span lang="en-us" style="font-family:'Comic Sans MS';color:#000000;">Gary
Hodson </span></p>
</div>
</div>
</div>
</div>
</div>
_______________________________________________<br>
Support Team.Net <a href="http://www.team.net/donate.html"></a><a href="http://www.team.net/donate.html">http://www.team.net/donate.html</a><br>
Suggested annual donation $12.75<br><br>
Archive: <a href="http://www.team.net/pipermail/healeys"></a><a href="http://www.team.net/pipermail/healeys">http://www.team.net/pipermail/healeys</a> <a href="http://autox.team.net/archive/healeys"></a><a href="http://autox.team.net/archive/healeys">http://autox.team.net/archive/healeys</a><br><br><a>Healeys@autox.team.net</a><br><a href="http://autox.team.net/mailman/listinfo/healeys"></a><a href="http://autox.team.net/mailman/listinfo/healeys">http://autox.team.net/mailman/listinfo/healeys</a><br><br>
Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/healeys/healey.nut@gmail.com"></a><a href="http://autox.team.net/mailman/options/healeys/healey.nut@gmail.com">http://autox.team.net/mailman/options/healeys/healey.nut@gmail.com</a><br><br></blockquote>
</div>
</div>
</healey.nut@gmail.com></div></body></html>