Subject: [Healeys] Hydraulic system maintenance

From: John Spaur via Healeys <[email-masked]>
Date: Wed, 14 Jun 2023 22:42:37 -0700

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Hello,

I am seeking the collective wisdom of my fellow Austin-Healey owners.

I restored my BT7 10 years ago and I drive it about 500 miles a year at the
most. In the last few years, while the pandemic was in progress, it has been
even less.

About a year ago I installed a remote clutch bleeder tube and I did not
tighten the bleed nipple sufficiently. As a result, fluid leaked out and I
need to bleed the air out of the clutch system.

However, I was wondering, because it has been ten years since the hydraulic
system was completely restored, if it would be wise to rebuild all of the
cylinders in the brake and clutch system.

Also, would it be wise to replace the front caliper flexible hoses and the
flexible hose under the jumper seats. It should be noted that all three
hoses do not seem to have hardened and there are not any other problems with
the hydraulic system other than having to bleed the clutch line because of
the air leak.

What are your thoughts?

John Spaur

'62 BT7

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link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal>Hello,<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>I am seeking =
the collective wisdom of my fellow Austin-Healey =
owners.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>I restored my BT7 10 years ago and I drive it about =
500 miles a year at the most. In the last few years, while the pandemic =
was in progress, it has been even less.<o:p></o:p></p><p =
class=3DMsoNormal>About a year ago I installed a remote clutch bleeder =
tube and I did not tighten the bleed nipple sufficiently. As a result, =
fluid leaked out and I need to bleed the air out of the clutch =
system.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>However, I was wondering, because it has been ten =
years since the hydraulic system was completely restored, if it would be =
wise to rebuild all of the cylinders in the brake and clutch =
system.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Also, would it be wise to replace the front caliper =
flexible hoses and the flexible hose under the jumper seats. It should =
be noted that all three hoses do not seem to have hardened and there are =
not any other problems with the hydraulic system other than having to =
bleed the clutch line because of the air leak.<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>What are =
your thoughts?<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>John =
Spaur<o:p></o:p></p><p class=3DMsoNormal>&#8217;62 =
BT7<o:p></o:p></p></div></body></html>
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From: Kees Oudesluijs via Healeys <[email-masked]>
Date: Thu, 15 Jun 2023 08:46:56 +0200

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If it ain't broke don't fix it.

Just check for leakages of the various cylinders and cracks/hardening of 
hoses and repair as necessary.

Replace the brake fluid in the entire system, not only the brake 
reservoir, every two years.

The best maintenance is to use the car regularly.

Kees Oudesluijs

Op 15-6-2023 om 07:42 schreef John Spaur via Healeys:
> I restored my BT7 10 years ago and I drive it about 500 miles a year 
> at the most. In the last few years, while the pandemic was in 
> progress, it has been even less.
>
> About a year ago I installed a remote clutch bleeder tube and I did 
> not tighten the bleed nipple sufficiently. As a result, fluid leaked 
> out and I need to bleed the air out of the clutch system.
>
> However, I was wondering, because it has been ten years since the 
> hydraulic system was completely restored, if it would be wise to 
> rebuild all of the cylinders in the brake and clutch system.
>
> Also, would it be wise to replace the front caliper flexible hoses and 
> the flexible hose under the jumper seats. It should be noted that all 
> three hoses do not seem to have hardened and there are not any other 
> problems with the hydraulic system other than having to bleed the 
> clutch line because of the air leak.
>
> What are your thoughts?
>
> John Spaur
>
> ’62 BT7
>
>
> Support Team.Nethttp://www.team.net/donate.html
> Suggested annual donation  $12.75
>
> Archive:http://www.team.net/pipermail/healeys  http://autox.team.net/archive/healeys
>
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> Unsubscribe/Manage:http://autox.team.net/mailman/options/healeys/[email-masked]
>

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    <p>If it ain't broke don't fix it. <br>
    </p>
    <p>Just check for leakages of the various cylinders and
      cracks/hardening of hoses and repair as necessary. <br>
    </p>
    <p>Replace the brake fluid in the entire system, not only the brake
      reservoir, every two years.</p>
    <p>The best maintenance is to use the car regularly. <br>
    </p>
    <p>Kees Oudesluijs</p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">Op 15-6-2023 om 07:42 schreef John
      Spaur via Healeys:<br>
    </div>
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        <p class="MsoNormal">Hello,<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">I am seeking the collective wisdom of my
          fellow Austin-Healey owners.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">I restored my BT7 10 years ago and I drive
          it about 500 miles a year at the most. In the last few years,
          while the pandemic was in progress, it has been even less.<o:p></o:p></p>
        <p class="MsoNormal">About a year ago I installed a remote
          clutch bleeder tube and I did not tighten the bleed nipple
          sufficiently. As a result, fluid leaked out and I need to
          bleed the air out of the clutch system.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">However, I was wondering, because it has
          been ten years since the hydraulic system was completely
          restored, if it would be wise to rebuild all of the cylinders
          in the brake and clutch system.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Also, would it be wise to replace the front
          caliper flexible hoses and the flexible hose under the jumper
          seats. It should be noted that all three hoses do not seem to
          have hardened and there are not any other problems with the
          hydraulic system other than having to bleed the clutch line
          because of the air leak.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">What are your thoughts?<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">John Spaur<o:p></o:p></p>
        <p class="MsoNormal">’62 BT7<o:p></o:p></p>
      </div>
      <br>
      <fieldset class="moz-mime-attachment-header"></fieldset>
      <pre class="moz-quote-pre" wrap="">_______________________________________________

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From: "m.g.sharp--- via Healeys" <[email-masked]>
Date: Thu, 15 Jun 2023 07:49:01 -0400

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John,  I generally believe in the axiom, "don't fix it unless it is broken".
If your wheel cylinder/caliper/master cylinder seals are not leaking and the
hoses are not hardened, and your brake lines are not rusted, then I would
just refill with DOT3 or DOT4 fluid and bleed it.  I have not done a
complete brake system overhaul for at least 25 years, but have replaced a
wheel cylinder, that is all.

Best, Mirek

From: Healeys <[email-masked]> On Behalf Of John Spaur via
Healeys
Sent: Thursday, June 15, 2023 1:43 AM
To: 'healeys' <[email-masked]>
Subject: [Healeys] Hydraulic system maintenance

Hello,

What are your thoughts?

John Spaur

'62 BT7

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class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>John, &nbsp;I generally believe in =
the axiom, &#8220;don&#8217;t fix it unless it is broken&#8221;.&nbsp; =
If your wheel cylinder/caliper/master cylinder seals are not leaking and =
the hoses are not hardened, and your brake lines are not rusted, then I =
would just refill with DOT3 or DOT4 fluid and bleed it.&nbsp; I have not =
done a complete brake system overhaul for at least 25 years, but have =
replaced a wheel cylinder, that is all.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>Best, =
Mirek<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><div><di=
v style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> Healeys =
&lt;[email-masked]&gt; <b>On Behalf Of </b>John Spaur =
via Healeys<br><b>Sent:</b> Thursday, June 15, 2023 1:43 =
AM<br><b>To:</b> 'healeys' =
&lt;[email-masked]&gt;<br><b>Subject:</b> [Healeys] Hydraulic =
system maintenance<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
lang=3DEN-US>Hello,<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>I am seeking the collective wisdom of my fellow =
Austin-Healey owners.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>I restored my BT7 10 years ago and I drive it about 500 =
miles a year at the most. In the last few years, while the pandemic was =
in progress, it has been even less.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>About a year ago I installed a =
remote clutch bleeder tube and I did not tighten the bleed nipple =
sufficiently. As a result, fluid leaked out and I need to bleed the air =
out of the clutch system.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>However, I was wondering, because =
it has been ten years since the hydraulic system was completely =
restored, if it would be wise to rebuild all of the cylinders in the =
brake and clutch system.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Also, would it be wise to replace the front caliper =
flexible hoses and the flexible hose under the jumper seats. It should =
be noted that all three hoses do not seem to have hardened and there are =
not any other problems with the hydraulic system other than having to =
bleed the clutch line because of the air leak.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>What are your =
thoughts?<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>John Spaur<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>&#8217;62 BT7<o:p></o:p></span></p></div></body></html>
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[email-masked]

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From: Robert Markovich via Healeys <[email-masked]>
Date: Thu, 15 Jun 2023 11:58:53 +0000 (UTC)

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I=E2=80=99d certainly flush and change the hydraulic fluid=E2=80=94and keep=
 on doing so every two years as this is an age and not a mileage issue, muc=
h like motor oil (every three months)=C2=A0and coolant (every year). Use a =
good low moisture absorption fluid such as Castrol, DOT 4. Vintage cars don=
=E2=80=99t seem to like the DOT 5 synthetic stuff, which tends to ooze out.=
 And definitely change the brake and clutch hoses, preferably to steel-brai=
d reinforced. I=E2=80=99d certainly change the clutch slave cylinder as tha=
t=E2=80=99s easy=E2=80=94and consider swapping out the rest of the master/s=
lave and calipers as well.=C2=A0

Sent from the all new AOL app for iOS

On Thursday, June 15, 2023, 1:58 AM, John Spaur via Healeys <healeys@autox.=
team.net> wrote:

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Hello,

 =C2=A0

 =C2=A0

I restored my BT7 10 years ago and I drive it about 500 miles a year at the=
 most. In the last few years, while the pandemic was in progress, it has be=
en even less.

About a year ago I installed a remote clutch bleeder tube and I did not tig=
hten the bleed nipple sufficiently. As a result, fluid leaked out and I nee=
d to bleed the air out of the clutch system.

 =C2=A0

However, I was wondering, because it has been ten years since the hydraulic=
 system was completely restored, if it would be wise to rebuild all of the =
cylinders in the brake and clutch system.

 =C2=A0

Also, would it be wise to replace the front caliper flexible hoses and the =
flexible hose under the jumper seats. It should be noted that all three hos=
es do not seem to have hardened and there are not any other problems with t=
he hydraulic system other than having to bleed the clutch line because of t=
he air leak.

 =C2=A0

What are your thoughts?

 =C2=A0

John Spaur

=E2=80=9962 BT7

Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archiv=
e/healeys

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if gte mso 9]><xml><o:OfficeDocumentSettings><o:AllowPNG/><o:PixelsPerInch>=
96</o:PixelsPerInch></o:OfficeDocumentSettings></xml><![endif]--></head><bo=
dy>
I=E2=80=99d certainly flush and change the hydraulic fluid=E2=80=94and keep=
 on doing so every two years as this is an age and not a mileage issue, muc=
h like motor oil (every three months)&nbsp;and coolant (every year). Use a =
good low moisture absorption fluid such as Castrol, DOT 4. Vintage cars don=
=E2=80=99t seem to like the DOT 5 synthetic stuff, which tends to ooze out.=
 And definitely change the brake and clutch hoses, preferably to steel-brai=
d reinforced. I=E2=80=99d certainly change the clutch slave cylinder as tha=
t=E2=80=99s easy=E2=80=94and consider swapping out the rest of the master/s=
lave and calipers as well.&nbsp;<br><br><br><div class=3D"yahoo-signature">=
<a href=3D"https://apps.apple.com/us/app/aol-news-email-weather-video/id646=
100661">Sent from the all new AOL app for iOS</a><br></div><br><p class=3D"=
yahoo-quoted-begin" style=3D"font-size: 15px; color: #715FFA; padding-top: =
15px; margin-top: 0">On Thursday, June 15, 2023, 1:58 AM, John Spaur via He=
aleys &lt;[email-masked]&gt; wrote:</p><blockquote class=3D"iosymai=
l"><div id=3D"yiv1956284009"><style><!--

#yiv1956284009 filtered {}
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#yiv1956284009 a:link, #yiv1956284009 span.yiv1956284009MsoHyperlink
=09{color:#0563C1;text-decoration:underline;}
#yiv1956284009 a:visited, #yiv1956284009 span.yiv1956284009MsoHyperlinkFoll=
owed
=09{color:#954F72;text-decoration:underline;}
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--></style><div><div class=3D"yiv1956284009WordSection1"><p class=3D"yiv195=
6284009MsoNormal">Hello,</p><p class=3D"yiv1956284009MsoNormal"> &nbsp;</p>=
<p class=3D"yiv1956284009MsoNormal">I am seeking the collective wisdom of m=
y fellow Austin-Healey owners.</p><p class=3D"yiv1956284009MsoNormal"> &nbs=
p;</p><p class=3D"yiv1956284009MsoNormal">I restored my BT7 10 years ago an=
d I drive it about 500 miles a year at the most. In the last few years, whi=
le the pandemic was in progress, it has been even less.</p><p class=3D"yiv1=
956284009MsoNormal">About a year ago I installed a remote clutch bleeder tu=
be and I did not tighten the bleed nipple sufficiently. As a result, fluid =
leaked out and I need to bleed the air out of the clutch system.</p><p clas=
s=3D"yiv1956284009MsoNormal"> &nbsp;</p><p class=3D"yiv1956284009MsoNormal"=
>However, I was wondering, because it has been ten years since the hydrauli=
c system was completely restored, if it would be wise to rebuild all of the=
 cylinders in the brake and clutch system.</p><p class=3D"yiv1956284009MsoN=
ormal"> &nbsp;</p><p class=3D"yiv1956284009MsoNormal">Also, would it be wis=
e to replace the front caliper flexible hoses and the flexible hose under t=
he jumper seats. It should be noted that all three hoses do not seem to hav=
e hardened and there are not any other problems with the hydraulic system o=
ther than having to bleed the clutch line because of the air leak.</p><p cl=
ass=3D"yiv1956284009MsoNormal"> &nbsp;</p><p class=3D"yiv1956284009MsoNorma=
l">What are your thoughts?</p><p class=3D"yiv1956284009MsoNormal"> &nbsp;</=
p><p class=3D"yiv1956284009MsoNormal">John Spaur</p><p class=3D"yiv19562840=
09MsoNormal">=E2=80=9962 BT7</p></div></div></div>_________________________=
______________________<br>Support Team.Net <a href=3D"http://www.team.net/d=
onate.html" target=3D"_blank">http://www.team.net/donate.html</a><br>Sugges=
ted annual donation&nbsp; $12.75<br><br>Archive: <a href=3D"http://www.team=
.net/pipermail/healeys" target=3D"_blank">http://www.team.net/pipermail/hea=
leys</a> <a href=3D"http://autox.team.net/archive/healeys" target=3D"_blank=
">http://autox.team.net/archive/healeys</a><br><br><a ymailto=3D"mailto:Hea=
[email-masked]" href=3D"mailto:[email-masked]">[email-masked]=
eam.net</a><br><a href=3D"http://autox.team.net/mailman/listinfo/healeys" t=
arget=3D"_blank">http://autox.team.net/mailman/listinfo/healeys</a><br><br>=
s/[email-masked]" target=3D"_blank">http://autox.team.net/mailman/optio=
ns/healeys/[email-masked]</a><br><br><blockquote></blockquote></blockqu=
ote>
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[email-masked]

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---

From: Bob Spidell <[email-masked]>
Date: Thu, 15 Jun 2023 05:09:40 -0700

This is a multi-part message in MIME format.
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Hi John,

My take? Flush and bleed the system and, if the fluid isn't really dark 
or viscous and doesn't have any gunk in it take a day trip. When you get 
back, check everywhere--M/Cs and slave cyls., hoses, etc.--for any leaks 
and if none, and the brakes work OK let it be. If you use glycol fluid 
(DoT3/4) there's an outside chance the fluid could have gelled but that 
would be evident when you flush; then you'd want to do a full rebuild.

Please send $0.02 ;)

Bob

> clutch line because of the air leak.

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<html>
  <head>
    Hi John,<br>
    My take? Flush and bleed the system and, if the fluid isn't really
    dark or viscous and doesn't have any gunk in it take a day trip.
    When you get back, check everywhere--M/Cs and slave cyls., hoses,
    etc.--for any leaks and if none, and the brakes work OK let it be.
    If you use glycol fluid (DoT3/4) there's an outside chance the fluid
    could have gelled but that would be evident when you flush; then
    you'd want to do a full rebuild.<br>
    Please send $0.02 ;)<br>
    Bob<br>
    <div class="moz-cite-prefix">On 6/14/2023 10:42 PM, John Spaur via
      Healeys wrote:<br>
  </body>
</html>

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[email-masked]

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---

From: Michael Salter <[email-masked]>
Date: Thu, 15 Jun 2023 08:37:52 -0400

--===============3491674287541622699==

--000000000000d556cc05fe2a5641
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Although some of the drivers handbooks recommended changing the fluid every
3 years and all the seals and hoses every 6 years or so  I, like Mirek,
I've never bothered and have had no significant issues.
That said however your clutch system, having been dry for some time, will
most likely require new seals as they get a bit "crusty" when left exposed
to the air for long periods.
BTW ...NEVER hone aluminium cylinders. They have a hard anodised coating
inside the bores which honing will destroy. The remaining unanodized
aluminium is too soft for use as a cylinder bore.

M

On Thu., Jun. 15, 2023, 1:47 a.m. John Spaur via Healeys, <
[email-masked]> wrote:

> I restored my BT7 10 years ago and I drive it about 500 miles a year at
> the most. In the last few years, while the pandemic was in progress, it h=
as
> been even less.
> tighten the bleed nipple sufficiently. As a result, fluid leaked out and =
I
> hydraulic system was completely restored, if it would be wise to rebuild
> all of the cylinders in the brake and clutch system.
>
>
>
> Also, would it be wise to replace the front caliper flexible hoses and th=
e
> hoses do not seem to have hardened and there are not any other problems
> with the hydraulic system other than having to bleed the clutch line
> because of the air leak.
>
>
>
> What are your thoughts?
>
>
>
> John Spaur
>
> =E2=80=9962 BT7
> Support Team.Net http://www.team.net/donate.html
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>

--000000000000d556cc05fe2a5641
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">Although some of the drivers handbooks recommended changi=
ng the fluid every 3 years and all the seals and hoses every 6 years or so=
=C2=A0 I, like Mirek, I&#39;ve never bothered and have had no significant i=
ssues.<div dir=3D"auto">That said however your clutch system, having been d=
ry for some time, will most likely require new seals as they get a bit &quo=
t;crusty&quot; when left exposed to the air for long periods.</div><div dir=
=3D"auto">BTW ...NEVER hone aluminium cylinders. They have a hard anodised =
coating inside the bores which honing will destroy. The remaining unanodize=
d aluminium is too soft for use as a cylinder bore.</div><div dir=3D"auto">=
<br></div><div dir=3D"auto">M</div><div dir=3D"auto"><br></div></div><br><d=
iv class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu., Jun=
. 15, 2023, 1:47 a.m. John Spaur via Healeys, &lt;<a href=3D"mailto:healeys=
@autox.team.net" target=3D"_blank" rel=3D"noreferrer">[email-masked]=
t</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin=
:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div lang=3D"EN-US=
" link=3D"#0563C1" vlink=3D"#954F72"><div><p class=3D"MsoNormal">Hello,<u><=
/u><u></u></p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p class=3D"Ms=
oNormal">I am seeking the collective wisdom of my fellow Austin-Healey owne=
rs.<u></u><u></u></p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p clas=
s=3D"MsoNormal">I restored my BT7 10 years ago and I drive it about 500 mil=
es a year at the most. In the last few years, while the pandemic was in pro=
gress, it has been even less.<u></u><u></u></p><p class=3D"MsoNormal">About=
 a year ago I installed a remote clutch bleeder tube and I did not tighten =
the bleed nipple sufficiently. As a result, fluid leaked out and I need to =
bleed the air out of the clutch system.<u></u><u></u></p><p class=3D"MsoNor=
mal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">However, I was wonderin=
g, because it has been ten years since the hydraulic system was completely =
restored, if it would be wise to rebuild all of the cylinders in the brake =
and clutch system.<u></u><u></u></p><p class=3D"MsoNormal"><u></u>=C2=A0<u>=
</u></p><p class=3D"MsoNormal">Also, would it be wise to replace the front =
caliper flexible hoses and the flexible hose under the jumper seats. It sho=
uld be noted that all three hoses do not seem to have hardened and there ar=
e not any other problems with the hydraulic system other than having to ble=
ed the clutch line because of the air leak.<u></u><u></u></p><p class=3D"Ms=
oNormal"><u></u>=C2=A0<u></u></p><p class=3D"MsoNormal">What are your thoug=
hts?<u></u><u></u></p><p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p><p cla=
ss=3D"MsoNormal">John Spaur<u></u><u></u></p><p class=3D"MsoNormal">=E2=80=
=9962 BT7<u></u><u></u></p></div></div>____________________________________=
___________<br>
rer noreferrer noreferrer" target=3D"_blank">http://www.team.net/donate.htm=
l</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/healeys" rel=3D"noreferre=
r noreferrer noreferrer" target=3D"_blank">http://www.team.net/pipermail/he=
aleys</a> <a href=3D"http://autox.team.net/archive/healeys" rel=3D"noreferr=
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il.com</a><br>
<br>
</blockquote></div>

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[email-masked]

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---

From: warthodson--- via Healeys <[email-masked]>
Date: Thu, 15 Jun 2023 18:19:02 +0000 (UTC)

--===============0216172257189729322==
	boundary="----=_Part_426234_587321837.1686853142082"

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 Has anyone found a source for new aluminum cylinders that are anodized? I =
read that the way to test them is to measure the continuity of the surface.=
 Anodized won't conduct. I checked a few & either they were not anodized or=
 if they were they bored out the cylinder after anodizing. Is it possible t=
hat if the bore is smooth/polished, as opposed to honing which is coarse, t=
he rubber seal will last as long as it would in an anodized bore? And the b=
ore should last long enough (years, decades) since it is harder that the ru=
bber seal.Gary Hodson=C2=A0=C2=A0
    On Thursday, June 15, 2023 at 08:58:42 AM CDT, Michael Salter <michaels=
[email-masked]> wrote:=20
 Although some of the drivers handbooks recommended changing the fluid ever=
y 3 years and all the seals and hoses every 6 years or so=C2=A0 I, like Mir=
ek, I've never bothered and have had no significant issues.That said howeve=
r your clutch system, having been dry for some time, will most likely requi=
re new seals as they get a bit "crusty" when left exposed to the air for lo=
ng periods.BTW ...NEVER hone aluminium cylinders. They have a hard anodised=
 coating inside the bores which honing will destroy. The remaining unanodiz=
ed aluminium is too soft for use as a cylinder bore.
M

On Thu., Jun. 15, 2023, 1:47 a.m. John Spaur via Healeys, <[email-masked]=
am.net> wrote:

Hello,

=C2=A0

=C2=A0

=C2=A0

=C2=A0

=C2=A0

What are your thoughts?

=C2=A0

John Spaur

=E2=80=9962 BT7

[email-masked]

[email-masked]

[email-masked]

[email-masked]

 =20
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<html><head></head><body><div class=3D"ydp47ae7afdyahoo-style-wrap" style=
=3D"font-family:Comic Sans MS, sans-serif;font-size:16px;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">Has anyone found a source fo=
r new aluminum cylinders that are anodized? I read that the way to test the=
m is to measure the continuity of the surface. Anodized won't conduct. I ch=
ecked a few &amp; either they were not anodized or if they were they bored =
out the cylinder after anodizing. Is it possible that if the bore is smooth=
/polished, as opposed to honing which is coarse, the rubber seal will last =
as long as it would in an anodized bore? And the bore should last long enou=
gh (years, decades) since it is harder that the rubber seal.</div><div dir=
=3D"ltr" data-setdir=3D"false">Gary Hodson</div><div dir=3D"ltr" data-setdi=
r=3D"false">&nbsp;&nbsp;</div><div dir=3D"ltr" data-setdir=3D"false"><br></=
div>
       =20
        </div><div id=3D"ydp696a27ebyahoo_quoted_7708015720" class=3D"ydp69=
6a27ebyahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Thursday, June 15, 2023 at 08:58:42 AM CDT, Michael =
Salter &lt;[email-masked]&gt; wrote:</div>
                <div><br></div>
                <div><div id=3D"ydp696a27ebyiv2456570294"><div><div>Althoug=
h some of the drivers handbooks recommended changing the fluid every 3 year=
s and all the seals and hoses every 6 years or so&nbsp; I, like Mirek, I've=
 never bothered and have had no significant issues.<div>That said however y=
our clutch system, having been dry for some time, will most likely require =
new seals as they get a bit "crusty" when left exposed to the air for long =
periods.</div><div>BTW ...NEVER hone aluminium cylinders. They have a hard =
anodised coating inside the bores which honing will destroy. The remaining =
unanodized aluminium is too soft for use as a cylinder bore.</div><div><br =
clear=3D"none"></div><div>M</div><div><br clear=3D"none"></div></div><br cl=
ear=3D"none"><div class=3D"ydp696a27ebyiv2456570294gmail_quote"><div id=3D"=
ydp696a27ebyiv2456570294yqt66458" class=3D"ydp696a27ebyiv2456570294yqt71783=
28599"><div dir=3D"ltr" class=3D"ydp696a27ebyiv2456570294gmail_attr">On Thu=
., Jun. 15, 2023, 1:47 a.m. John Spaur via Healeys, &lt;<a shape=3D"rect" h=
ref=3D"mailto:[email-masked]" rel=3D"nofollow" target=3D"_blank">he=
[email-masked]</a>&gt; wrote:<br clear=3D"none"></div><blockquote sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;" class=
=3D"ydp696a27ebyiv2456570294gmail_quote"><div lang=3D"EN-US"><div><p class=
=3D"ydp696a27ebyiv2456570294MsoNormal">Hello,<u></u><u></u></p><p class=3D"=
ydp696a27ebyiv2456570294MsoNormal"><u></u>&nbsp;<u></u></p><p class=3D"ydp6=
96a27ebyiv2456570294MsoNormal">I am seeking the collective wisdom of my fel=
low Austin-Healey owners.<u></u><u></u></p><p class=3D"ydp696a27ebyiv245657=
0294MsoNormal"><u></u>&nbsp;<u></u></p><p class=3D"ydp696a27ebyiv2456570294=
MsoNormal">I restored my BT7 10 years ago and I drive it about 500 miles a =
year at the most. In the last few years, while the pandemic was in progress=
, it has been even less.<u></u><u></u></p><p class=3D"ydp696a27ebyiv2456570=
294MsoNormal">About a year ago I installed a remote clutch bleeder tube and=
 I did not tighten the bleed nipple sufficiently. As a result, fluid leaked=
 out and I need to bleed the air out of the clutch system.<u></u><u></u></p=
><p class=3D"ydp696a27ebyiv2456570294MsoNormal"><u></u>&nbsp;<u></u></p><p =
class=3D"ydp696a27ebyiv2456570294MsoNormal">However, I was wondering, becau=
se it has been ten years since the hydraulic system was completely restored=
, if it would be wise to rebuild all of the cylinders in the brake and clut=
ch system.<u></u><u></u></p><p class=3D"ydp696a27ebyiv2456570294MsoNormal">=
<u></u>&nbsp;<u></u></p><p class=3D"ydp696a27ebyiv2456570294MsoNormal">Also=
, would it be wise to replace the front caliper flexible hoses and the flex=
ible hose under the jumper seats. It should be noted that all three hoses d=
o not seem to have hardened and there are not any other problems with the h=
ydraulic system other than having to bleed the clutch line because of the a=
ir leak.<u></u><u></u></p><p class=3D"ydp696a27ebyiv2456570294MsoNormal"><u=
></u>&nbsp;<u></u></p><p class=3D"ydp696a27ebyiv2456570294MsoNormal">What a=
re your thoughts?<u></u><u></u></p><p class=3D"ydp696a27ebyiv2456570294MsoN=
ormal"><u></u>&nbsp;<u></u></p><p class=3D"ydp696a27ebyiv2456570294MsoNorma=
l">John Spaur<u></u><u></u></p><p class=3D"ydp696a27ebyiv2456570294MsoNorma=
l">=E2=80=9962 BT7<u></u><u></u></p></div></div>___________________________=
____________________<br clear=3D"none">
 rel=3D"nofollow" target=3D"_blank">http://www.team.net/donate.html</a><br =
clear=3D"none">
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50">_______________________________________________<br clear=3D"none">Suppo=
rt Team.Net <a shape=3D"rect" href=3D"http://www.team.net/donate.html" rel=
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[email-masked]

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---

From: warthodson--- via Healeys <[email-masked]>
Date: Fri, 16 Jun 2023 13:25:25 +0000 (UTC)

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 I should have said I was specifically asking about anodized aluminum=C2=A0=
 master cylinders.Gary Hodson=C2=A0
    On Thursday, June 15, 2023 at 03:59:34 PM CDT, warthodson--- via Healey=
s <[email-masked]> wrote: =20
=20
  Has anyone found a source for new aluminum cylinders that are anodized? I=
 read that the way to test them is to measure the continuity of the surface=
. Anodized won't conduct. I checked a few & either they were not anodized o=
r if they were they bored out the cylinder after anodizing. Is it possible =
that if the bore is smooth/polished, as opposed to honing which is coarse, =
the rubber seal will last as long as it would in an anodized bore? And the =
bore should last long enough (years, decades) since it is harder that the r=
ubber seal.Gary Hodson=C2=A0=C2=A0
    On Thursday, June 15, 2023 at 08:58:42 AM CDT, Michael Salter <michaels=
[email-masked]> wrote:=20
 Although some of the drivers handbooks recommended changing the fluid ever=
y 3 years and all the seals and hoses every 6 years or so=C2=A0 I, like Mir=
ek, I've never bothered and have had no significant issues.That said howeve=
r your clutch system, having been dry for some time, will most likely requi=
re new seals as they get a bit "crusty" when left exposed to the air for lo=
ng periods.BTW ...NEVER hone aluminium cylinders. They have a hard anodised=
 coating inside the bores which honing will destroy. The remaining unanodiz=
ed aluminium is too soft for use as a cylinder bore.
M

Hello,

=C2=A0

=C2=A0

=C2=A0

=C2=A0

=C2=A0

What are your thoughts?

=C2=A0

John Spaur

=E2=80=9962 BT7

[email-masked]

[email-masked]

[email-masked]

[email-masked]

[email-masked]

[email-masked]

 =20
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<html><head></head><body><div class=3D"ydp6420c80byahoo-style-wrap" style=
=3D"font-family:Comic Sans MS, sans-serif;font-size:16px;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">I should have said I was spe=
cifically asking about anodized aluminum&nbsp; master cylinders.</div><div =
dir=3D"ltr" data-setdir=3D"false">Gary Hodson&nbsp;</div><div><br></div>
       =20
        </div><div id=3D"ydp35ec0647yahoo_quoted_7368179021" class=3D"ydp35=
ec0647yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Thursday, June 15, 2023 at 03:59:34 PM CDT, warthods=
on--- via Healeys &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydp35ec0647yiv5174270855"><div><div style=
=3D"font-family:Comic Sans MS, sans-serif;font-size:16px;" class=3D"ydp35ec=
0647yiv5174270855ydp47ae7afdyahoo-style-wrap"><div></div>
        <div dir=3D"ltr">Has anyone found a source for new aluminum cylinde=
rs that are anodized? I read that the way to test them is to measure the co=
ntinuity of the surface. Anodized won't conduct. I checked a few &amp; eith=
er they were not anodized or if they were they bored out the cylinder after=
 anodizing. Is it possible that if the bore is smooth/polished, as opposed =
to honing which is coarse, the rubber seal will last as long as it would in=
 an anodized bore? And the bore should last long enough (years, decades) si=
nce it is harder that the rubber seal.</div><div dir=3D"ltr">Gary Hodson</d=
iv><div dir=3D"ltr">&nbsp;&nbsp;</div><div dir=3D"ltr"><br clear=3D"none"><=
/div>
       =20
        </div><div id=3D"ydp35ec0647yiv5174270855ydp696a27ebyahoo_quoted_77=
08015720" class=3D"ydp35ec0647yiv5174270855ydp696a27ebyahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div id=3D"ydp35ec0647yiv5174270855yqt32325" class=3D"ydp35=
ec0647yiv5174270855yqt1944074695"><div>
                    On Thursday, June 15, 2023 at 08:58:42 AM CDT, Michael =
Salter &lt;[email-masked]&gt; wrote:</div>
                <div><br clear=3D"none"></div>
                <div><div id=3D"ydp35ec0647yiv5174270855ydp696a27ebyiv24565=
70294"><div><div>Although some of the drivers handbooks recommended changin=
g the fluid every 3 years and all the seals and hoses every 6 years or so&n=
bsp; I, like Mirek, I've never bothered and have had no significant issues.=
<div>That said however your clutch system, having been dry for some time, w=
ill most likely require new seals as they get a bit "crusty" when left expo=
sed to the air for long periods.</div><div>BTW ...NEVER hone aluminium cyli=
nders. They have a hard anodised coating inside the bores which honing will=
 destroy. The remaining unanodized aluminium is too soft for use as a cylin=
der bore.</div><div><br clear=3D"none"></div><div>M</div><div><br clear=3D"=
none"></div></div><br clear=3D"none"><div class=3D"ydp35ec0647yiv5174270855=
ydp696a27ebyiv2456570294gmail_quote"><div id=3D"ydp35ec0647yiv5174270855ydp=
696a27ebyiv2456570294yqt66458" class=3D"ydp35ec0647yiv5174270855ydp696a27eb=
yiv2456570294yqt7178328599"><div dir=3D"ltr" class=3D"ydp35ec0647yiv5174270=
855ydp696a27ebyiv2456570294gmail_attr">On Thu., Jun. 15, 2023, 1:47 a.m. Jo=
hn Spaur via Healeys, &lt;<a shape=3D"rect" href=3D"mailto:[email-masked]=
am.net" rel=3D"nofollow" target=3D"_blank">[email-masked]</a>&gt; w=
rote:<br clear=3D"none"></div><blockquote style=3D"margin:0 0 0 .8ex;border=
-left:1px #ccc solid;padding-left:1ex;" class=3D"ydp35ec0647yiv5174270855yd=
p696a27ebyiv2456570294gmail_quote"><div lang=3D"EN-US"><div><p class=3D"ydp=
35ec0647yiv5174270855ydp696a27ebyiv2456570294MsoNormal">Hello,<u></u><u></u=
></p><p class=3D"ydp35ec0647yiv5174270855ydp696a27ebyiv2456570294MsoNormal"=
><u></u>&nbsp;<u></u></p><p class=3D"ydp35ec0647yiv5174270855ydp696a27ebyiv=
2456570294MsoNormal">I am seeking the collective wisdom of my fellow Austin=
-Healey owners.<u></u><u></u></p><p class=3D"ydp35ec0647yiv5174270855ydp696=
a27ebyiv2456570294MsoNormal"><u></u>&nbsp;<u></u></p><p class=3D"ydp35ec064=
7yiv5174270855ydp696a27ebyiv2456570294MsoNormal">I restored my BT7 10 years=
 ago and I drive it about 500 miles a year at the most. In the last few yea=
rs, while the pandemic was in progress, it has been even less.<u></u><u></u=
></p><p class=3D"ydp35ec0647yiv5174270855ydp696a27ebyiv2456570294MsoNormal"=
>About a year ago I installed a remote clutch bleeder tube and I did not ti=
ghten the bleed nipple sufficiently. As a result, fluid leaked out and I ne=
ed to bleed the air out of the clutch system.<u></u><u></u></p><p class=3D"=
ydp35ec0647yiv5174270855ydp696a27ebyiv2456570294MsoNormal"><u></u>&nbsp;<u>=
</u></p><p class=3D"ydp35ec0647yiv5174270855ydp696a27ebyiv2456570294MsoNorm=
al">However, I was wondering, because it has been ten years since the hydra=
ulic system was completely restored, if it would be wise to rebuild all of =
the cylinders in the brake and clutch system.<u></u><u></u></p><p class=3D"=
ydp35ec0647yiv5174270855ydp696a27ebyiv2456570294MsoNormal"><u></u>&nbsp;<u>=
</u></p><p class=3D"ydp35ec0647yiv5174270855ydp696a27ebyiv2456570294MsoNorm=
al">Also, would it be wise to replace the front caliper flexible hoses and =
the flexible hose under the jumper seats. It should be noted that all three=
 hoses do not seem to have hardened and there are not any other problems wi=
th the hydraulic system other than having to bleed the clutch line because =
of the air leak.<u></u><u></u></p><p class=3D"ydp35ec0647yiv5174270855ydp69=
6a27ebyiv2456570294MsoNormal"><u></u>&nbsp;<u></u></p><p class=3D"ydp35ec06=
47yiv5174270855ydp696a27ebyiv2456570294MsoNormal">What are your thoughts?<u=
></u><u></u></p><p class=3D"ydp35ec0647yiv5174270855ydp696a27ebyiv245657029=
4MsoNormal"><u></u>&nbsp;<u></u></p><p class=3D"ydp35ec0647yiv5174270855ydp=
696a27ebyiv2456570294MsoNormal">John Spaur<u></u><u></u></p><p class=3D"ydp=
35ec0647yiv5174270855ydp696a27ebyiv2456570294MsoNormal">=E2=80=9962 BT7<u><=
/u><u></u></p></div></div>_______________________________________________<b=
r clear=3D"none">
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