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Michael
I was considering jacking up the car and releasing pressure at the wheels
but aside from not being dressed for alongside the road maintenance I
figured that by the time I did all this the pressure would release on own.
I agree that the MC is the likely culprit but at this point will assume
nothing
On Sun, Jul 28, 2019, 9:08 AM Michael Salter <michaelsalter@gmail.com>
wrote:
> Michael, I'm sure that you probably appreciate this but ... if a brake
> hose is the culprit then either 1 front or both rear brakes will be hot AND
> the master cylinder "feel" will be approximately similar to normal.
> The fact that the pedal goes hard indicates that the entire system is
> retaining pressure and the most probable cause is the system charge valve
> within the master cylinder.
> The charge valve type in the 100 master cylinder is prone to problems as a
> consequence of its design.
> Opening a bleed screw when the brakes tighten up is the test that I use to
> confirm such a master cylinder fault.
> Remember, correct diagnosis is 80% of the job!!
>
> M
>
> On Sun, Jul 28, 2019, 8:20 AM Michael Oritt, <michael.oritt@gmail.com>
> wrote:
>
>> I finally got to take the car out yesterday evening and while all at
>> first seemed good after five or so miles of driving the brakes began to
>> harden up and became so bad that they almost brought the car to a stop even
>> under throttle. I pulled over and after about 30 minutes the brakes
>> released and I crept back home.
>>
>> At this point I am assuming nothing. Other than perhaps by feel I don't
>> know how one can inspect a brake hose for internal collapse but I will go
>> over each component and probably rebuild or replace the MC on general
>> principle. I am also going to replace the heat wrap that went around the
>> manifold which I removed when I first adjusted the brake actuating rod as
>> perhaps it was preventing the MC from overheating, etc.
>>
>> Egg on my face....
>>
>> Best--Michael Oritt
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Content-Transfer-Encoding: quoted-printable
<div dir=3D"auto">Michael<div dir=3D"auto"><br></div><div dir=3D"auto">I wa=
s considering jacking up the car and releasing pressure at the wheels but a=
side from not being dressed for alongside the road maintenance I figured th=
at by the time I did all this the pressure would release on own.</div><div =
dir=3D"auto"><br></div><div dir=3D"auto">I agree that the MC is the likely =
culprit but at this point will assume=C2=A0 nothing</div></div><br><div cla=
ss=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Jul 28, 20=
19, 9:08 AM Michael Salter <<a href=3D"mailto:michaelsalter@gmail.com";>m=
ichaelsalter@gmail.com</a>> wrote:<br></div><blockquote class=3D"gmail_q=
uote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1e=
x"><div dir=3D"auto">Michael,=C2=A0 I'm sure that you probably apprecia=
te this but ... if a brake hose is the culprit then either 1 front or both =
rear brakes will be hot AND the master cylinder "feel" will be ap=
proximately similar to normal.<div dir=3D"auto">The fact that the pedal goe=
s hard indicates that the entire system is retaining pressure and the most =
probable cause is the system charge valve within the master cylinder.=C2=A0=
</div><div dir=3D"auto">The charge valve type in the 100 master cylinder is=
prone to problems as a consequence of its design.=C2=A0</div><div dir=3D"a=
uto">Opening a bleed screw when the brakes tighten up is the test that I us=
e to confirm such a master cylinder fault.</div><div dir=3D"auto">Remember,=
=C2=A0 correct diagnosis is 80% of the job!!</div><div dir=3D"auto"><br></d=
iv><div 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, 8:20 AM Michael Oritt, =
<<a href=3D"mailto:michael.oritt@gmail.com"; target=3D"_blank" rel=3D"nor=
eferrer">michael.oritt@gmail.com</a>> wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex"><div dir=3D"ltr"><div class=3D"gmail_default" style=3D"color:=
#3333ff"><span style=3D"color:rgb(34,34,34);font-family:Verdana,Arial,Tahom=
a,Calibri,Geneva,sans-serif;font-size:13px">I finally got to take the car o=
ut yesterday evening and while all at first seemed good after five or so mi=
les of driving the brakes began to harden up and became so bad that they al=
most brought the car to a stop even under throttle.=C2=A0 I pulled over and=
after about 30 minutes the brakes released and I crept back home.</span><b=
r style=3D"color:rgb(34,34,34);font-family:Verdana,Arial,Tahoma,Calibri,Gen=
eva,sans-serif;font-size:13px"><br style=3D"color:rgb(34,34,34);font-family=
:Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:13px"><span style=
=3D"color:rgb(34,34,34);font-family:Verdana,Arial,Tahoma,Calibri,Geneva,san=
s-serif;font-size:13px">At this point I am assuming nothing.=C2=A0 Other th=
an perhaps by feel I don't know how one can inspect a brake hose for in=
ternal collapse but I will go over each component and probably rebuild or r=
eplace the MC on general principle.=C2=A0 I am also going to replace the he=
at wrap that went around the manifold which I removed when I first adjusted=
the brake actuating rod as perhaps it was preventing the MC from overheati=
ng, etc.</span><br style=3D"color:rgb(34,34,34);font-family:Verdana,Arial,T=
ahoma,Calibri,Geneva,sans-serif;font-size:13px"><br style=3D"color:rgb(34,3=
4,34);font-family:Verdana,Arial,Tahoma,Calibri,Geneva,sans-serif;font-size:=
13px"><span style=3D"color:rgb(34,34,34);font-family:Verdana,Arial,Tahoma,C=
alibri,Geneva,sans-serif;font-size:13px">Egg on my face....=C2=A0</span><br=
></div><div class=3D"gmail_default" style=3D"color:#3333ff"><span style=3D"=
color:rgb(34,34,34);font-family:Verdana,Arial,Tahoma,Calibri,Geneva,sans-se=
rif;font-size:13px"><br></span></div><div class=3D"gmail_default" style=3D"=
color:#3333ff"><span style=3D"color:rgb(34,34,34);font-family:Verdana,Arial=
,Tahoma,Calibri,Geneva,sans-serif;font-size:13px">Best--Michael Oritt</span=
></div></div>
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