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Rather than disconnecting the hose here is a simpler test for servo functio=
n.
With the engine off pump the brakes several times to deplete the residual v=
acuum.
Then apply a steady pressure on the brake pedal as you start the engine.
If the servo is working you will feel the brake pedal drop slightly.
Michael S
BN1 #174
-----Original Message-----
From: "Price Lindsay" <050.rpl@gmail.com>
Sent: =E2=80=8E7/=E2=80=8E03/=E2=80=8E2016 3:14 p.m.
To: "warthodson@aol.com" <warthodson@aol.com>
Cc: "healeys@autox.team.net" <healeys@autox.team.net>
Subject: Re: [Healeys] Soft Brakes
The mc is the same size as the one I removed and as with the original spec.=
I'll try your test once I re-blead the servo. Thanks.=20
Price Lindsay
630-841-6300 Cell
Sent from my iPhone
On Mar 6, 2016, at 5:09 PM, warthodson@aol.com wrote:
Price,
I assume pedal pressure (not pedal travel) is your question.=20
When you replaced the master cylinder did you replace it with the same size=
(I.D.) as the one you took out? Also, is it the same size as the original =
MC size for a Phase 2 BJB?=20
I would assume that you could test whether or not the servo is functioning =
by simply comparing the breaking pressure required with the vacuum line con=
nected & disconnected. It would be a good idea to plug the line or fitting =
at the manifold when you disconnect it so that air is not sucked into the i=
ntake manifold during the test. If you do not notice any difference then th=
e servo is not functioning.
Gary Hodson =20
=20
=20
-----Original Message-----
From: Price Lindsay <050.rpl@gmail.com>
To: Oudesluys <coudesluijs@chello.nl>
Cc: Healey List <healeys@autox.team.net>
Sent: Sun, Mar 6, 2016 8:38 am
Subject: Re: [Healeys] Soft Brakes
There is nothing in the Bently manual about adjusting the pedal. My pedal h=
as about 1/2" of movement before it engages. The pedal is solid when I pres=
s it so I believe the system has been bled correctly.=20
The feed back I receive when engaging the brakes when the car is in motion =
is that the servo is not assisting. I don't understand, as the servo was ju=
st rebuilt and it worked fine until I switched out the master cylinder.=20
Price Lindsay
67 BJ8=
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=
=3Dutf-8"></head><body dir=3D"auto"><div><div style=3D"font-family: Calibri=
,sans-serif; font-size: 11pt;">Rather than disconnecting the hose here is a=
simpler test for servo function.<br>With the engine off pump the brakes se=
veral times to deplete the residual vacuum.<br>Then apply a steady pressure=
on the brake pedal as you start the engine.<br>If the servo is working you=
will feel the brake pedal drop slightly.<br>Michael S<br>BN1 #174<br></div=
></div><div dir=3D"ltr"><hr><span style=3D"font-family: Calibri,sans-serif;=
font-size: 11pt; font-weight: bold;">From: </span><span style=3D"font-fami=
ly: Calibri,sans-serif; font-size: 11pt;"><a href=3D"mailto:050.rpl@gmail.c=
om">Price Lindsay</a></span><br><span style=3D"font-family: Calibri,sans-se=
rif; font-size: 11pt; font-weight: bold;">Sent: </span><span style=3D"font-=
family: Calibri,sans-serif; font-size: 11pt;">=E2=80=8E7/=E2=80=8E03/=E2=80=
=8E2016 3:14 p.m.</span><br><span style=3D"font-family: Calibri,sans-serif;=
font-size: 11pt; font-weight: bold;">To: </span><span style=3D"font-family=
: Calibri,sans-serif; font-size: 11pt;"><a href=3D"mailto:warthodson@aol.co=
m">warthodson@aol.com</a></span><br><span style=3D"font-family: Calibri,san=
s-serif; font-size: 11pt; font-weight: bold;">Cc: </span><span style=3D"fon=
t-family: Calibri,sans-serif; font-size: 11pt;"><a href=3D"mailto:healeys@a=
utox.team.net">healeys@autox.team.net</a></span><br><span style=3D"font-fam=
ily: Calibri,sans-serif; font-size: 11pt; font-weight: bold;">Subject: </sp=
an><span style=3D"font-family: Calibri,sans-serif; font-size: 11pt;">Re: [H=
ealeys] Soft Brakes</span><br><br></div><div>The mc is the same size as the=
one I removed and as with the original spec. I'll try your test once I re-=
blead the servo. Thanks. <br><br>Price Lindsay<div><div><br></div><div=
>630-841-6300 Cell</div><div><br></div><div><br></div><div>Sent from my iPh=
one</div></div></div><div><br>On Mar 6, 2016, at 5:09 PM, <a href=3D"mailto=
:warthodson@aol.com">warthodson@aol.com</a> wrote:<br><br></div><blockquote=
type=3D"cite"><div><font color=3D"black" face=3D"arial" size=3D"2">=0A=
<div>Price,</div>=0A=
=0A=
<div>I assume pedal pressure (not pedal travel) is your question. </di=
v>=0A=
=0A=
<div>When you replaced the master cylinder did you replace it with the same=
size (I.D.) as the one you took out? Also, is it the same size as the orig=
inal MC size for a Phase 2 BJB? </div>=0A=
=0A=
<div>I would assume that you could test whether or not the servo is functio=
ning by simply comparing the breaking pressure required with the vacuum lin=
e connected & disconnected. It would be a good idea to plug the line or=
fitting at the manifold when you disconnect it so that air is not sucked i=
nto the intake manifold during the test. If you do not notice any differenc=
e then the servo is not functioning.</div>=0A=
=0A=
<div>Gary Hodson </div>=0A=
=0A=
<div> </div>=0A=
=0A=
<div> </div>=0A=
=0A=
<div style=3D"color: black; font-family: arial,helvetica; font-size: 10pt;"=
>-----Original Message-----<br>=0A=
From: Price Lindsay <<a href=3D"mailto:050.rpl@gmail.com";>050.rpl@gmail.=
com</a>><br>=0A=
To: Oudesluys <<a href=3D"mailto:coudesluijs@chello.nl";>coudesluijs@chel=
lo.nl</a>><br>=0A=
Cc: Healey List <<a href=3D"mailto:healeys@autox.team.net";>healeys@autox=
.team.net</a>><br>=0A=
Sent: Sun, Mar 6, 2016 8:38 am<br>=0A=
Subject: Re: [Healeys] Soft Brakes<br>=0A=
<br>=0A=
There is nothing in the Bently manual about adjusting the pedal. My pedal h=
as about 1/2" of movement before it engages. The pedal is solid when I pres=
s it so I believe the system has been bled correctly. <br>=0A=
<br>=0A=
The feed back I receive when engaging the brakes when the car is in motion =
is that the servo is not assisting. I don't understand, as the servo was ju=
st rebuilt and it worked fine until I switched out the master cylinder. <br=
>=0A=
<br>=0A=
Price Lindsay<br>=0A=
67 BJ8<br>=0A=
<br>=0A=
<br>=0A=
</div>=0A=
</font></div></blockquote></body></html>=
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