Subject: [TR] Silicone Brake Fluid Tolerant Stoplight Switches?

From: William Babbitt <[email-masked]>
Date: Thu, 4 Jan 2024 17:15:16 -0500

The hydraulically operated stoplight switch on my TR3 has once again failed. And yes, I am using silicone brake fluid.  When sourcing a replacement from NAPA (SL147), it came with a warning note that it is not approved for use with Silicone Brake Fluids. That was for a switch with spade connectors. 

The identical switch with screw connectors (SL144) has no such note. But, the folks at NAPA weren’t able to provide any reassurance that that one would any more silicone tolerant. 

Is anyone aware of an updated hydraulically operated stoplight switch that is silicone brake fluid tolerant?

The thread size is 1/8”X27

Thanks,
Bill Babbitt 

Sent from my iPhone
** [email-masked] **

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From: Bob <[email-masked]> HzvwXzwB5WO+H5ks7e7u7PJDapbPZK05+wkCBdk7lhPivHZZOOvmgHWMVUO+GlrGb622/jgmAdxsc0whGhyvKyL/a+LQdJ/Vb5I=
Date: Thu, 4 Jan 2024 17:36:44 -0500

Bill,

When the switch failed on my 63 4, I just went down to my FLAPS and 
picked up a mechanical switch and attached it to the frame that holds 
the master cyl. Added a wire harness around the front, over the radiator 
to hook up with the ends of the old switch. I believe Triumph did this 
for the 4a and on as my 6 has a similar setup from stock. I am sure you 
can rig up something similar for your 3.

Bob

On 1/4/24 17:15, William Babbitt wrote:
> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/[email-masked]

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From: dave northrup <[email-masked]>
Date: Thu, 4 Jan 2024 23:52:00 +0000

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Ignore the warning.  They have to put that in there because if you mix Dot =
5 and 3/4 you get sludge.   In this litigious society they put that in to a=
void being sued.  You are fine.

-------- Original message --------
From: William Babbitt <[email-masked]>
Date: 1/4/24 5:08 PM (GMT-06:00)
To: List Triumph <[email-masked]>
Subject: [TR] Silicone Brake Fluid Tolerant Stoplight Switches?

The hydraulically operated stoplight switch on my TR3 has once again failed=
. And yes, I am using silicone brake fluid.  When sourcing a replacement fr=
om NAPA (SL147), it came with a warning note that it is not approved for us=
e with Silicone Brake Fluids. That was for a switch with spade connectors.

The identical switch with screw connectors (SL144) has no such note. But, t=
he folks at NAPA weren=92t able to provide any reassurance that that one wo=
uld any more silicone tolerant.

Is anyone aware of an updated hydraulically operated stoplight switch that =
is silicone brake fluid tolerant?

The thread size is 1/8=94X27

Thanks,
Bill Babbitt

Sent from my iPhone

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

teer.com

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<meta name=3D"Generator" content=3D"Microsoft Exchange Server">
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<div dir=3D"auto">Ignore the warning.&nbsp; They have to put that in there =
because if you mix Dot 5 and 3/4 you get sludge.&nbsp; &nbsp;In this litigi=
ous society they put that in to avoid being sued.&nbsp; You are fine.
<div><br>
</div>
<div><br>
</div>
<div>-------- Original message --------</div>
<div>From: William Babbitt &lt;[email-masked]&gt; </div>
<div>Date: 1/4/24 5:08 PM (GMT-06:00) </div>
<div>To: List Triumph &lt;[email-masked]&gt; </div>
<div>Subject: [TR] Silicone Brake Fluid Tolerant Stoplight Switches? </div>
<div><br>
</div>
</div>
<font size=3D"2"><span style=3D"font-size:10pt;">
<div class=3D"PlainText">The hydraulically operated stoplight switch on my =
TR3 has once again failed. And yes, I am using silicone brake fluid.&nbsp; =
When sourcing a replacement from NAPA (SL147), it came with a warning note =
that it is not approved for use with Silicone
 Brake Fluids. That was for a switch with spade connectors. <br>
<br>
The identical switch with screw connectors (SL144) has no such note. But, t=
he folks at NAPA weren=92t able to provide any reassurance that that one wo=
uld any more silicone tolerant.
<br>
<br>
Is anyone aware of an updated hydraulically operated stoplight switch that =
is silicone brake fluid tolerant?<br>
<br>
The thread size is 1/8=94X27<br>
<br>
Thanks,<br>
Bill Babbitt <br>
<br>
<br>
Sent from my iPhone<br>
** [email-masked] **<br>
<br>
ate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/triumphs">http://www.team=
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<br>
hs/[email-masked]">
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From: Randy and Valerie DeRuiter <[email-masked]>
Date: Fri, 5 Jan 2024 12:00:47 +0000

If you can still find a Ron Francis SW-32 switch that is supposedly better and more compatible with Dot 5, but it may not be made anymore.  

There are many stories out there beyond Triumphs about poor quality switches so it may be something you just need to keep as a spare or two for the inevitable failure.

I didn’t like relying on the hydraulic switch so I made a bracket and added a mechanical switch to the brake pedal as an alternative.
** [email-masked] **

---

From: DAVID MASSEY <[email-masked]>
Date: Fri, 5 Jan 2024 13:05:30 +0000 (UTC)

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The Stop Light switch for an MGB will screw into the pedal assembly replaci=
ng the stop screw at the front of the assembly.=C2=A0 A simple, two-wire ha=
rness will connect it to the factory wires.=C2=A0 This is what I did on my =
TR3 with good results and almost looks stock.

Dave=20

=20

    On Thursday, January 4, 2024 at 04:37:08 PM CST, William Babbitt <wbabb=
[email-masked]> wrote: =20
=20
 The hydraulically operated stoplight switch on my TR3 has once again faile=
d. And yes, I am using silicone brake fluid.=C2=A0 When sourcing a replacem=
ent from NAPA (SL147), it came with a warning note that it is not approved =
for use with Silicone Brake Fluids. That was for a switch with spade connec=
tors.=20

The identical switch with screw connectors (SL144) has no such note. But, t=
he folks at NAPA weren=E2=80=99t able to provide any reassurance that that =
one would any more silicone tolerant.=20

The thread size is 1/8=E2=80=9DX27

Thanks,
Bill Babbitt=20

Sent from my iPhone

Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/a=
rchive

[email-masked]
 =20
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<html><head></head><body><div class=3D"ydp83336beyahoo-style-wrap" style=3D=
"font-family:Arial, Helvetica, sans-serif;font-size:16px;"><div><div dir=3D=
"ltr" data-setdir=3D"false">The Stop Light switch for an MGB will screw int=
o the pedal assembly replacing the stop screw at the front of the assembly.=
&nbsp; A simple, two-wire harness will connect it to the factory wires.&nbs=
p; This is what I did on my TR3 with good results and almost looks stock.<b=
r></div><div><br></div><div class=3D"ydp83336besignature"><div style=3D"col=
or: black; font-style: normal; font-weight: normal; font-stretch: normal; f=
ont-size: 12pt; line-height: normal; font-family: Arial, Helvetica, sans-se=
rif; font-size-adjust: none;"><div style=3D"color: black; font-style: norma=
l; font-weight: normal; font-stretch: normal; font-size: 12pt; line-height:=
 normal; font-family: Arial, Helvetica, sans-serif; font-size-adjust: none;=
"><div><font size=3D"4">Dave <br></font></div><div><span style=3D"font-size=
:10.0pt;font-family:sans-serif;color:black;"><br></span></div><br></div></d=
iv></div></div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"ydpc2da884cyahoo_quoted_4966143056" class=3D"ydpc2=
da884cyahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Thursday, January 4, 2024 at 04:37:08 PM CST, Willia=
m Babbitt &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div dir=3D"ltr">The hydraulically operated stoplight =
switch on my TR3 has once again failed. And yes, I am using silicone brake =
fluid.&nbsp; When sourcing a replacement from NAPA (SL147), it came with a =
warning note that it is not approved for use with Silicone Brake Fluids. Th=
at was for a switch with spade connectors. <br></div><div dir=3D"ltr"><br><=
/div><div dir=3D"ltr">The identical switch with screw connectors (SL144) ha=
s no such note. But, the folks at NAPA weren=E2=80=99t able to provide any =
reassurance that that one would any more silicone tolerant. <br></div><div =
dir=3D"ltr"><br></div><div dir=3D"ltr">Is anyone aware of an updated hydrau=
lically operated stoplight switch that is silicone brake fluid tolerant?<br=
></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">The thread size is 1/8=
=E2=80=9DX27<br></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Thanks,<b=
r></div><div dir=3D"ltr">Bill Babbitt <br></div><div dir=3D"ltr"><br></div>=
<div dir=3D"ltr"><br></div><div dir=3D"ltr">Sent from my iPhone<br></div><d=
iv dir=3D"ltr">** <a href=3D"mailto:[email-masked]" rel=3D"nofollo=
w" target=3D"_blank">[email-masked]</a> **<br></div><div dir=3D"lt=
r"><br></div><div dir=3D"ltr">Donate: <a href=3D"http://www.team.net/donate=
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ail/triumphs" rel=3D"nofollow" target=3D"_blank">http://www.team.net/piperm=
ail/triumphs</a>&nbsp; <a href=3D"http://www.team.net/archive" rel=3D"nofol=
low" target=3D"_blank">http://www.team.net/archive</a><br></div><div dir=3D=
"ltr"><br></div><div dir=3D"ltr">Unsubscribe/Manage: <a href=3D"http://auto=
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From: Frank Fisher <[email-masked]>
Date: Fri, 5 Jan 2024 16:57:21 +0000 (UTC)

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 im not sure we are fine.i am constantly replacing the switch on my TR3 and=
 my friends TR3. both of us using dot 5.it seems we get 9 to 12 months use =
per switch.been happening for the better part of the last 10 years.we don't=
 get sludge accumulation, the switch just stops working.have tried the moss=
, TRF and napa parts.
would love to find a compatible switch.
Frank

=C2=A0
    On Thursday, January 4, 2024 at 04:37:57 PM PST, dave northrup <dave@ra=
nteer.com> wrote: =20
=20
 Ignore the warning.=C2=A0 They have to put that in there because if you mi=
x Dot 5 and 3/4 you get sludge.=C2=A0 =C2=A0In this litigious society they =
put that in to avoid being sued.=C2=A0 You are fine.

-------- Original message --------From: William Babbitt <wbabbitt@sbcglobal=
.net> Date: 1/4/24 5:08 PM (GMT-06:00) To: List Triumph <[email-masked]=
m.net> Subject: [TR] Silicone Brake Fluid Tolerant Stoplight Switches?=20
The hydraulically operated stoplight switch on my TR3 has once again failed=
. And yes, I am using silicone brake fluid.=C2=A0 When sourcing a replaceme=
nt from NAPA (SL147), it came with a warning note that it is not approved f=
or use with Silicone Brake Fluids. That was for a switch with spade connect=
ors.=20

The identical switch with screw connectors (SL144) has no such note. But, t=
he folks at NAPA weren=E2=80=99t able to provide any reassurance that that =
one would any more silicone tolerant.

Thanks,
Bill Babbitt=20

Sent from my iPhone

Archive: http://www.team.net/pipermail/triumphs=C2=A0http://www.team.net/ar=
chive

teer.com

[email-masked]
 =20
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<html><head></head><body><div class=3D"ydp76d60f9ayahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px=
;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">im not sure we are fine.</di=
v><div dir=3D"ltr" data-setdir=3D"false">i am constantly replacing the swit=
ch on my TR3 and my friends TR3. both of us using dot 5.</div><div dir=3D"l=
tr" data-setdir=3D"false">it seems we get 9 to 12 months use per switch.</d=
iv><div dir=3D"ltr" data-setdir=3D"false">been happening for the better par=
t of the last 10 years.</div><div dir=3D"ltr" data-setdir=3D"false">we don'=
t get sludge accumulation, the switch just stops working.</div><div dir=3D"=
ltr" data-setdir=3D"false">have tried the moss, TRF and napa parts.</div><d=
iv dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=
=3D"false">would love to find a compatible switch.</div><div dir=3D"ltr" da=
ta-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">Frank<=
/div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data=
-setdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false"><br></di=
v><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"ltr" data-se=
tdir=3D"false"><br></div><div dir=3D"ltr" data-setdir=3D"false">&nbsp;</div=
><div><br></div>
       =20
        </div><div id=3D"ydpb74abda9yahoo_quoted_5192540164" class=3D"ydpb7=
4abda9yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Thursday, January 4, 2024 at 04:37:57 PM PST, dave n=
orthrup &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydpb74abda9yiv9642768678"><div>
<div>Ignore the warning.&nbsp; They have to put that in there because if yo=
u mix Dot 5 and 3/4 you get sludge.&nbsp; &nbsp;In this litigious society t=
hey put that in to avoid being sued.&nbsp; You are fine.
<div><br clear=3D"none">
</div>
<div><br clear=3D"none">
</div>
<div id=3D"ydpb74abda9yiv9642768678yqtfd10771" class=3D"ydpb74abda9yiv96427=
68678yqt5258247664"><div>-------- Original message --------</div>
<div>From: William Babbitt &lt;[email-masked]&gt; </div>
<div>Date: 1/4/24 5:08 PM (GMT-06:00) </div>
<div>To: List Triumph &lt;[email-masked]&gt; </div>
<div>Subject: [TR] Silicone Brake Fluid Tolerant Stoplight Switches? </div>
<div><br clear=3D"none">
</div>
</div></div><div id=3D"ydpb74abda9yiv9642768678yqtfd87549" class=3D"ydpb74a=
bda9yiv9642768678yqt5258247664">
<font size=3D"2"><span style=3D"font-size:10pt;">
</span></font></div><div class=3D"ydpb74abda9yiv9642768678PlainText"><div i=
d=3D"ydpb74abda9yiv9642768678yqtfd36969" class=3D"ydpb74abda9yiv9642768678y=
qt5258247664">The hydraulically operated stoplight switch on my TR3 has onc=
e again failed. And yes, I am using silicone brake fluid.&nbsp; When sourci=
ng a replacement from NAPA (SL147), it came with a warning note that it is =
not approved for use with Silicone
 Brake Fluids. That was for a switch with spade connectors. <br clear=3D"no=
ne">
<br clear=3D"none">
The identical switch with screw connectors (SL144) has no such note. But, t=
he folks at NAPA weren=E2=80=99t able to provide any reassurance that that =
one would any more silicone tolerant.
<br clear=3D"none">
<br clear=3D"none">
Is anyone aware of an updated hydraulically operated stoplight switch that =
is silicone brake fluid tolerant?<br clear=3D"none">
<br clear=3D"none">
The thread size is 1/8=E2=80=9DX27<br clear=3D"none">
<br clear=3D"none">
Thanks,<br clear=3D"none">
Bill Babbitt <br clear=3D"none">
<br clear=3D"none">
<br clear=3D"none">
Sent from my iPhone<br clear=3D"none">
** [email-masked] **<br clear=3D"none">
<br clear=3D"none">
ofollow" target=3D"_blank">http://www.team.net/donate.html</a><br clear=3D"=
none">
Archive: <a shape=3D"rect" href=3D"http://www.team.net/pipermail/triumphs" =
rel=3D"nofollow" target=3D"_blank">http://www.team.net/pipermail/triumphs</=
a>&nbsp;
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ailman/options/triumphs/[email-masked]" rel=3D"nofollow" target=3D"_blank=
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t5258247664"><br clear=3D"none">
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