triumphs
[Top] [All Lists]

Re: [TR] DOT5 & brake pressure switch

To: "triumphs@autox.team.net" <triumphs@autox.team.net>, "don.hiscock@gmail.com" <don.hiscock@gmail.com>, aribert neumann <aribertn@gmail.com>
Subject: Re: [TR] DOT5 & brake pressure switch
From: Frank Fisher <yellowtr3@yahoo.com>
Date: Tue, 9 Sep 2025 11:09:31 +0000 (UTC)
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <CAGkVM29NNjqkijZvpxf_tCcCvkKigHOOzYoX2tzOFJ+SNioZig@mail.gmail.com>
--===============3971431403270326543==
        boundary="----=_Part_1544573_2089314822.1757416171500"

------=_Part_1544573_2089314822.1757416171500
Content-Transfer-Encoding: quoted-printable

 my experiance is the same as below.
Frank
    On Monday, September 8, 2025 at 06:09:58 PM PDT, aribert neumann <aribe=
rtn@gmail.com> wrote: =20
=20
 I don't have any knowledge of a TR3B=C2=A0 =C2=A0(I drove my Spit6 today, =
50 mile round trip, plan to do the same tomorrow).=C2=A0 =C2=A0=C2=A0
I converted my '61 Ford Falcon to DOT5 about 25 yrs ago.=C2=A0 I have also =
experienced the much shorter (hydraulic) switch life with DOT5.=C2=A0 =C2=
=A0I tap the brakes prior to opening the garage door to check for brake lig=
ht function on any of my vehicles before departing home.=C2=A0 =C2=A0With t=
he hydraulic brake switch using DOT5, first the brake pedal displacement an=
d then the braking effort (to activate the brake lights) will increase as t=
he switch begins to fail.=C2=A0 I expect to replace the switch up to twice =
a year - I drive the car 8 months out of the year.=C2=A0 =C2=A0I am willing=
 to replace switches rather than cut into the harness.=C2=A0 =C2=A0I replac=
e the switch without needing to do any brake bleeding.
I buy a half dozen switches at a time from RockAuto.=C2=A0 =C2=A0The switch=
 for my Ford is Standard Parts SLS27, the switch has two round pins to enga=
ge the harness.=C2=A0 In the past decade there is now a slip of paper in th=
e switch box warning me not to use DOT5.


------- Forwarded message ----------
From:=C2=A0Don Hiscock <don.hiscock@gmail.com>
To:=C2=A0Triumphs list <triumphs@autox.team.net>
Cc:=C2=A0
Bcc:=C2=A0
Date:=C2=A0Sun, 7 Sep 2025 20:08:21 -0600
Subject:=C2=A0[TR] "More reliable" sidescreen brake pressure switch for DOT=
5/silicone?
I converted my TR3B to DOT5 three years ago.=C2=A0 I've been waiting for th=
e silicone oil to get into the=C2=A0pressure switch and cause it to quit wo=
rking.=C2=A0 That time is here.
Yes, I could convert to a TR6 mechanical switch actuated by the brake pedal=
 lever.=C2=A0 I may end up there.=C2=A0 But it's fun to keep this car as or=
iginal as I can.=C2=A0 Is any one supplier's or source's brake pressure swi=
tch any more reliable than the others around DOT5?
It was a nice day the other day, so the TR3B made the drive to the village=
=C2=A0mailboxes now that I"m living in northern New Mexico.=C2=A0 Forty fou=
r years last month=C2=A0that I've owned this thing.
https://photos.smugmug.com/photos/i-QRBNGvw/0/KvPKhzkvQRPj3kgscg4GSP4mLXMMp=
mfG2cqzZbBW4/X5/i-QRBNGvw-X5.jpg** triumphs@autox.team.net **

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

3@yahoo.com
 =20
------=_Part_1544573_2089314822.1757416171500
Content-Transfer-Encoding: quoted-printable

<html><head></head><body><div class=3D"ydpce1c7f69yahoo-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">my experiance is the same as=
 below.</div><div dir=3D"ltr" data-setdir=3D"false"><br></div><div dir=3D"l=
tr" data-setdir=3D"false">Frank</div><div><br></div>
       =20
        </div><div id=3D"ydp60d15f44yahoo_quoted_8113304829" class=3D"ydp60=
d15f44yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                        On Monday, September 8, 2025 at 06:09:58 PM PDT, ar=
ibert neumann &lt;aribertn@gmail.com&gt; wrote:
                    </div>
                    <div><br></div>
                    <div><br></div>
               =20
               =20
                <div><div id=3D"ydp60d15f44yiv1777866880"><div dir=3D"ltr">=
I don't have any knowledge of a TR3B&nbsp; &nbsp;(I drove my Spit6 today, 5=
0 mile round trip, plan to do the same tomorrow).&nbsp; &nbsp;&nbsp;<div><b=
r></div><div>I converted my '61 Ford Falcon to DOT5 about 25 yrs ago.&nbsp;=
 I have also experienced the much shorter (hydraulic) switch life with DOT5=
.&nbsp; &nbsp;I tap the brakes prior to opening the garage door to check fo=
r brake light function on any of my vehicles before departing home.&nbsp; &=
nbsp;With the hydraulic brake switch using DOT5, first the brake pedal disp=
lacement and then the braking effort (to activate the brake lights) will in=
crease as the switch begins to fail.&nbsp; I expect to replace the switch u=
p to twice a year - I drive the car 8 months out of the year.&nbsp; &nbsp;I=
 am willing to replace switches rather than cut into the harness.&nbsp; &nb=
sp;I replace the switch without needing to do any brake bleeding.</div><div=
><br></div><div>I buy a half dozen switches at a time from RockAuto.&nbsp; =
&nbsp;The switch for my Ford is Standard Parts SLS27, the switch has two ro=
und pins to engage the harness.&nbsp; In the past decade there is now a sli=
p of paper in the switch box warning me not to use DOT5.</div><div><div><br=
></div><div><br></div><div><br></div><div>------- Forwarded message -------=
---<br>From:&nbsp;Don Hiscock &lt;<a href=3D"mailto:don.hiscock@gmail.com"; =
rel=3D"nofollow" target=3D"_blank">don.hiscock@gmail.com</a>&gt;<br>To:&nbs=
p;Triumphs list &lt;<a href=3D"mailto:triumphs@autox.team.net"; rel=3D"nofol=
low" target=3D"_blank">triumphs@autox.team.net</a>&gt;<br>Cc:&nbsp;<br>Bcc:=
&nbsp;<br>Date:&nbsp;Sun, 7 Sep 2025 20:08:21 -0600<br>Subject:&nbsp;[TR] "=
More reliable" sidescreen brake pressure switch for DOT5/silicone?<br><div =
dir=3D"ltr"><div class=3D"ydp60d15f44yiv1777866880gmail_default">I converte=
d my TR3B to DOT5 three years ago.&nbsp; I've been waiting for the silicone=
 oil to get into the&nbsp;pressure switch and cause it to quit working.&nbs=
p; That time is here.</div><div class=3D"ydp60d15f44yiv1777866880gmail_defa=
ult"><br></div><div class=3D"ydp60d15f44yiv1777866880gmail_default">Yes, I =
could convert to a TR6 mechanical switch actuated by the brake pedal lever.=
&nbsp; I may end up there.&nbsp; But it's fun to keep this car as original =
as I can.&nbsp; Is any one supplier's or source's brake pressure switch any=
 more reliable than the others around DOT5?</div><div class=3D"ydp60d15f44y=
iv1777866880gmail_default"><br></div><div class=3D"ydp60d15f44yiv1777866880=
gmail_default">It was a nice day the other day, so the TR3B made the drive =
to the village&nbsp;mailboxes now that I"m living in northern New Mexico.&n=
bsp; Forty four years last month&nbsp;that I've owned this thing.</div><div=
 class=3D"ydp60d15f44yiv1777866880gmail_default"><br></div><div class=3D"yd=
p60d15f44yiv1777866880gmail_default"><a href=3D"https://photos.smugmug.com/=
photos/i-QRBNGvw/0/KvPKhzkvQRPj3kgscg4GSP4mLXMMpmfG2cqzZbBW4/X5/i-QRBNGvw-X=
5.jpg" rel=3D"nofollow" target=3D"_blank">https://photos.smugmug.com/photos=
/i-QRBNGvw/0/KvPKhzkvQRPj3kgscg4GSP4mLXMMpmfG2cqzZbBW4/X5/i-QRBNGvw-X5.jpg<=
/a></div></div></div></div></div>
</div>** <a href=3D"mailto:triumphs@autox.team.net"; rel=3D"nofollow" target=
=3D"_blank">triumphs@autox.team.net</a> **<br><br>Donate: <a href=3D"http:/=
/www.team.net/donate.html" rel=3D"nofollow" target=3D"_blank">http://www.te=
am.net/donate.html</a><br>Archive: <a href=3D"http://www.team.net/pipermail=
/triumphs" rel=3D"nofollow" target=3D"_blank">http://www.team.net/pipermail=
/triumphs</a>&nbsp; <a href=3D"http://www.team.net/archive"; rel=3D"nofollow=
" target=3D"_blank">http://www.team.net/archive</a><br><br>Unsubscribe/Mana=
ge: <a href=3D"http://autox.team.net/mailman/options/triumphs/yellowtr3@yah=
oo.com" rel=3D"nofollow" target=3D"_blank">http://autox.team.net/mailman/op=
tions/triumphs/yellowtr3@yahoo.com</a><br></div>
            </div>
        </div></body></html>
------=_Part_1544573_2089314822.1757416171500--

--===============3971431403270326543==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

** triumphs@autox.team.net **

Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archive


--===============3971431403270326543==--

<Prev in Thread] Current Thread [Next in Thread>