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Re: [Healeys] Brake issue

To: warthodson@aol.com
Subject: Re: [Healeys] Brake issue
From: Michael Salter <michaelsalter@gmail.com>
Date: Sun, 28 Jul 2019 10:11:07 -0400
Cc: healeys@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <337002644.7807601.1564321343380.ref@mail.yahoo.com> <337002644.7807601.1564321343380@mail.yahoo.com>
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Regarding pushrod free play.
Unfortunately the known problem with 100 master cylinders is internal to
the cylinder itself and is not resolved by ensuring that the push rod has
free play.
Roger Moment wrote an excellent, and of course exhaustive,  article on the
subject many years back after he encountered difficulties when using
silicon fluid.

M

On Sun, Jul 28, 2019, 9:42 AM warthodson--- via Healeys, <
healeys@autox.team.net> wrote:

> I still suspect the lack of proper free play in the brake pedal & this is
> the easiest to check. Simply adjust the free play, temporarily, such that
> there is excessive free play & go for a test drive.
> Gary H
>
>
> -----Original Message-----
> From: Michael Oritt <michael.oritt@gmail.com>
> To: Kees Oudesluijs <coudesluijs@chello.nl>
>
> Kees--
>
> That is about the procedure I envisioned following.
>
> Since there has never been any pulling to one side I doubt the failure is
> at one particular corner, but the hoses are at least 15 years old and
> deserve replacement.  I replaced the MC innards with a kit a year or so a=
go
> but will go through it again and replace as necessary.  I'll also flush t=
he
> system thoroughly.
>
> Best--Michael Oritt
>
> On Sun, Jul 28, 2019 at 8:39 AM Kees Oudesluijs <coudesluijs@chello.nl>
> wrote:
>
> Go through each component one by one. Start with new brake hoses if they
> are still the old fashioned rubber/textile construction. How old are they
> by the way? Probably decades so renewal was probably well overdue. Also
> flush the entire brake system with fresh brake fluid as there may be some
> debris in it somewhere.  Try again and if solved it may well have been
> collapsed inner wall of one or both of the tubes. If not solved adjust th=
e
> rod on the MBC. Still not solved, renew or overhaul the MBC and adjust th=
e
> rod.
> When rebuilding brake components do NOT use clean brake fluid but the
> special brake grease from At=C3=A9, Girling or equivalent.
> Overheating is unlikely as that will generally lead to complete loss of
> brakes.
> Kees Oudesluijs
>
>
>
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<div dir=3D"auto">Regarding pushrod free play.<div dir=3D"auto">Unfortunate=
ly the known problem with 100 master cylinders is internal to the cylinder =
itself and is not resolved by ensuring that the push rod has free play.</di=
v><div dir=3D"auto">Roger Moment wrote an excellent, and of course exhausti=
ve,=C2=A0 article on the subject many years back after he encountered diffi=
culties when using silicon fluid.=C2=A0</div><div dir=3D"auto"><br></div><d=
iv dir=3D"auto">M</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr=
" class=3D"gmail_attr">On Sun, Jul 28, 2019, 9:42 AM warthodson--- via Heal=
eys, &lt;<a href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</=
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 style=3D"color:black;font:10pt arial">
<div>I still suspect the lack of proper free play in the brake pedal &amp; =
this is the easiest to check. Simply adjust the free play, temporarily, suc=
h that there is excessive free play &amp; go for a test drive.=C2=A0</div>

<div>Gary H</div>
<br>
<br>

<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black">-----=
Original Message-----<br>
From: Michael Oritt &lt;<a href=3D"mailto:michael.oritt@gmail.com"; target=
=3D"_blank" rel=3D"noreferrer">michael.oritt@gmail.com</a>&gt;<br>
To: Kees Oudesluijs &lt;<a href=3D"mailto:coudesluijs@chello.nl"; target=3D"=
_blank" rel=3D"noreferrer">coudesluijs@chello.nl</a>&gt;<br>
<br>

<div id=3D"m_-8915207665016150380yiv1957992266">
<div>
<div dir=3D"ltr">
<div class=3D"m_-8915207665016150380yiv1957992266gmail_default" style=3D"co=
lor:#3333ff">Kees--</div>

<div class=3D"m_-8915207665016150380yiv1957992266gmail_default" style=3D"co=
lor:#3333ff"><br clear=3D"none"></div>

<div class=3D"m_-8915207665016150380yiv1957992266gmail_default" style=3D"co=
lor:#3333ff">That is about the procedure I envisioned following.=C2=A0=C2=
=A0</div>

<div class=3D"m_-8915207665016150380yiv1957992266gmail_default" style=3D"co=
lor:#3333ff"><br clear=3D"none"></div>

<div class=3D"m_-8915207665016150380yiv1957992266gmail_default" style=3D"co=
lor:#3333ff">Since there has never been any pulling to one side I doubt the=
 failure is at one particular corner, but the hoses are at least 15 years o=
ld and deserve replacement.=C2=A0 I replaced the MC innards with a kit a ye=
ar or so ago but will go through it again and replace as necessary.=C2=A0 I=
&#39;ll also flush the system thoroughly.</div>

<div class=3D"m_-8915207665016150380yiv1957992266gmail_default" style=3D"co=
lor:#3333ff"><br clear=3D"none"></div>

<div class=3D"m_-8915207665016150380yiv1957992266gmail_default" style=3D"co=
lor:#3333ff">Best--Michael Oritt</div>
</div>
<br clear=3D"none">
<div class=3D"m_-8915207665016150380yiv1957992266gmail_quote">
<div class=3D"m_-8915207665016150380yiv1957992266yqt9413654283" id=3D"m_-89=
15207665016150380yiv1957992266yqt66723">
<div class=3D"m_-8915207665016150380yiv1957992266gmail_attr" dir=3D"ltr">On=
 Sun, Jul 28, 2019 at 8:39 AM Kees Oudesluijs &lt;<a href=3D"mailto:coudesl=
uijs@chello.nl" rel=3D"noopener noreferrer noreferrer" shape=3D"rect" targe=
t=3D"_blank">coudesluijs@chello.nl</a>&gt; wrote:<br clear=3D"none"></div>
<blockquote class=3D"m_-8915207665016150380yiv1957992266gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding=
-left:1ex">
 =20
   =20
 =20
 =20
<div>
   =20
<div>Go through each component one by one. Start with new brake hoses
      if they are still the old fashioned rubber/textile construction.
      How old are they by the way? Probably decades so renewal was
      probably well overdue. Also flush the entire brake system with
      fresh brake fluid as there may be some debris in it somewhere.=C2=A0
      Try again and if solved it may well have been collapsed inner wall
      of one or both of the tubes. If not solved adjust the rod on the
      MBC. Still not solved, renew or overhaul the MBC and adjust the
      rod. <br clear=3D"none">
    </div>

   =20
<div>When rebuilding brake components do NOT use clean brake fluid but
      the special brake grease from At=C3=A9, Girling or equivalent.<br cle=
ar=3D"none">
    </div>

   =20
<div>Overheating is unlikely as that will generally lead to complete
      loss of brakes.</div>

   =20
<div>Kees Oudesluijs</div>

   =20
<div><br clear=3D"none">
    </div>

   =20
<div><br clear=3D"none">
    </div>

   =20
<div class=3D"m_-8915207665016150380yiv1957992266gmail-m_241955002745581946=
0moz-cite-prefix"><br clear=3D"none"></div>
</div>
</blockquote></div>
</div>
</div>
</div>
</div>
</div>
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