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Re: [TR] Converting from DOT3 to DOT5 hydraulic fluid in my TR4A

Subject: Re: [TR] Converting from DOT3 to DOT5 hydraulic fluid in my TR4A
From: Greg Lemon <grglmn@gmail.com>
Date: Sat, 21 Aug 2021 15:41:18 -0500
Cc: Triumphs <triumphs@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <BB8EC6C9-E35A-4421-B5E6-DA885010B382@fuse.net> <8E7B9CEF-B58B-4B9A-A65C-B4D56DABBD28@comcast.net> <005101d79680$a0b29f40$e217ddc0$@uprichard.net> <342701d796be$8e769e10$ab63da30$@bell.net>
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I started using DOT 5 about twenty years ago.  I have been driving British
cars for over 40 years, the first twenty were filled with frequent
hydraulic rebuilds and hardware replacement, seems like something would go
on a car every year or two when I was running DOT 3.

Until recently my experience with DOT5 was very good.  Then my brake master
cylinder went out a couple years ago, when I inspected it there was visible
corrosion on the bottom of the bore (installed new about 9 years prior, car
has led a sheltered life since).  I have pictures of it somewhere, but too
lazy to dig up now.

My conclusion was water got in the system, pooled at the bottom of the
bore, and led to a leak.

So my experience with DOT5 is mixed, I still think I have fewer leaks with
it, and when it does leak it doesn't eat paint.   After replacing the
various hydraulic bits I am still running DOT 5, but I don't trust the
school of thought that you don't need to flush or flush the fluid as often.

I have not noticed any more difficulty in bleeding or mushy pedal.

I know this is always a hot topic, and my conclusions are by no means based
on any scientific study, but I am comfortable enough with them to share
with the group with no reservations.

Greg Lemon, TR250



On Sat, Aug 21, 2021, 1:59 PM <keithstewart@bell.net> wrote:

> Amen.
>
> Keith Stewart
>
> -----Original Message-----
> From: auprichard@uprichard.net <auprichard@uprichard.net>
> Sent: August 21, 2021 7:35 AM
> To: 'William Pugh' <anabil007@comcast.net>; 'Dave Connitt' <
> dconnitt@fuse.net>
> Cc: 'Triumphs' <triumphs@autox.team.net>
> Subject: Re: [TR] Converting from DOT3 to DOT5 hydraulic fluid in my TR4A
>
> Do we really need snippy posts like this? Everyone is entitled to an
> opinion without having to endure this.
>
> Andrew Uprichard
> Jackson, Michigan
>
> -----Original Message-----
> From: Triumphs <triumphs-bounces@autox.team.net> On Behalf Of William Pug=
h
> Sent: Friday, August 20, 2021 9:02 PM
> To: Dave Connitt <dconnitt@fuse.net>
> Cc: Triumphs <triumphs@autox.team.net>
> Subject: Re: [TR] Converting from DOT3 to DOT5 hydraulic fluid in my TR4A
>
>
>
>
>
> why in Earth would you=E2=80=A6or any one want to do that?   Ego, perhaps=
?
>
> > On Aug 20, 2021, at 4:26 PM, Dave Connitt <dconnitt@fuse.net> wrote:
> >
> > Hi All,
> > What is the preferred way to convert from DOT3 to DOT5 hydraulic fluid
> in my TR4A. The clutch is going to be easy as the leaking master cylinder
> and slave are being replaced and the short hard and soft line will be
> fairly easy to flush. I need suggestions regarding the brakes.
> > Thanks,
> > Dave Connitt
> >
> > Sent from my iPhone
> > ** triumphs@autox.team.net **
> >
> > Donate: http://www.team.net/donate.html
> > Archive: http://www.team.net/pipermail/triumphs
> http://www.team.net/archive
> >
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> http://autox.team.net/mailman/options/triumphs/anabil007@comcast.net
>
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<div dir=3D"auto">I started using DOT 5 about twenty years ago.=C2=A0 I hav=
e been driving British cars for over 40 years, the first twenty were filled=
 with frequent hydraulic rebuilds and hardware replacement, seems like some=
thing would go on a car every year or two when I was running DOT 3.<div dir=
=3D"auto"><br></div><div dir=3D"auto">Until recently my experience with DOT=
5 was very good.=C2=A0 Then my brake master cylinder went out a couple year=
s ago, when I inspected it there was visible corrosion on the bottom of the=
 bore (installed new about 9 years prior, car has led a sheltered life sinc=
e).=C2=A0 I have pictures of it somewhere, but too lazy to dig up now.</div=
><div dir=3D"auto"><br></div><div dir=3D"auto">My conclusion was water got =
in the system, pooled at the bottom of the bore, and led to a leak.</div><d=
iv dir=3D"auto"><br></div><div dir=3D"auto">So my experience with DOT5 is m=
ixed, I still think I have fewer leaks with it, and when it does leak it do=
esn&#39;t eat paint.=C2=A0 =C2=A0After replacing the various hydraulic bits=
 I am still running DOT 5, but I don&#39;t trust the school of thought that=
 you don&#39;t need to flush or flush the fluid as often.</div><div dir=3D"=
auto"><br></div><div dir=3D"auto">I have not noticed any more difficulty in=
 bleeding or mushy pedal.</div><div dir=3D"auto"><br></div><div dir=3D"auto=
">I know this is always a hot topic, and my conclusions are by no means bas=
ed on any scientific study, but I am comfortable enough with them to share =
with the group with no reservations.</div><div dir=3D"auto"><br></div><div =
dir=3D"auto">Greg Lemon, TR250</div><div dir=3D"auto"><br></div><div dir=3D=
"auto">=C2=A0</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" cl=
ass=3D"gmail_attr">On Sat, Aug 21, 2021, 1:59 PM  &lt;<a href=3D"mailto:kei=
thstewart@bell.net" target=3D"_blank" rel=3D"noreferrer">keithstewart@bell.=
net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"marg=
in:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Amen.<br>
<br>
Keith Stewart<br>
<br>
-----Original Message-----<br>
From: <a href=3D"mailto:auprichard@uprichard.net"; rel=3D"noreferrer norefer=
rer" target=3D"_blank">auprichard@uprichard.net</a> &lt;<a href=3D"mailto:a=
uprichard@uprichard.net" rel=3D"noreferrer noreferrer" target=3D"_blank">au=
prichard@uprichard.net</a>&gt; <br>
Sent: August 21, 2021 7:35 AM<br>
To: &#39;William Pugh&#39; &lt;<a href=3D"mailto:anabil007@comcast.net"; rel=
=3D"noreferrer noreferrer" target=3D"_blank">anabil007@comcast.net</a>&gt;;=
 &#39;Dave Connitt&#39; &lt;<a href=3D"mailto:dconnitt@fuse.net"; rel=3D"nor=
eferrer noreferrer" target=3D"_blank">dconnitt@fuse.net</a>&gt;<br>
Cc: &#39;Triumphs&#39; &lt;<a href=3D"mailto:triumphs@autox.team.net"; rel=
=3D"noreferrer noreferrer" target=3D"_blank">triumphs@autox.team.net</a>&gt=
;<br>
Subject: Re: [TR] Converting from DOT3 to DOT5 hydraulic fluid in my TR4A<b=
r>
<br>
Do we really need snippy posts like this? Everyone is entitled to an opinio=
n without having to endure this.<br>
<br>
Andrew Uprichard<br>
Jackson, Michigan<br>
<br>
-----Original Message-----<br>
From: Triumphs &lt;<a href=3D"mailto:triumphs-bounces@autox.team.net"; rel=
=3D"noreferrer noreferrer" target=3D"_blank">triumphs-bounces@autox.team.ne=
t</a>&gt; On Behalf Of William Pugh<br>
Sent: Friday, August 20, 2021 9:02 PM<br>
To: Dave Connitt &lt;<a href=3D"mailto:dconnitt@fuse.net"; rel=3D"noreferrer=
 noreferrer" target=3D"_blank">dconnitt@fuse.net</a>&gt;<br>
Cc: Triumphs &lt;<a href=3D"mailto:triumphs@autox.team.net"; rel=3D"noreferr=
er noreferrer" target=3D"_blank">triumphs@autox.team.net</a>&gt;<br>
Subject: Re: [TR] Converting from DOT3 to DOT5 hydraulic fluid in my TR4A<b=
r>
<br>
<br>
<br>
<br>
<br>
why in Earth would you=E2=80=A6or any one want to do that?=C2=A0 =C2=A0Ego,=
 perhaps?<br>
<br>
&gt; On Aug 20, 2021, at 4:26 PM, Dave Connitt &lt;<a href=3D"mailto:dconni=
tt@fuse.net" rel=3D"noreferrer noreferrer" target=3D"_blank">dconnitt@fuse.=
net</a>&gt; wrote:<br>
&gt; <br>
&gt; Hi All,<br>
&gt; What is the preferred way to convert from DOT3 to DOT5 hydraulic fluid=
 in my TR4A. The clutch is going to be easy as the leaking master cylinder =
and slave are being replaced and the short hard and soft line will be fairl=
y easy to flush. I need suggestions regarding the brakes.<br>
&gt; Thanks,<br>
&gt; Dave Connitt <br>
&gt; <br>
&gt; Sent from my iPhone<br>
&gt; ** <a href=3D"mailto:triumphs@autox.team.net"; rel=3D"noreferrer norefe=
rrer" target=3D"_blank">triumphs@autox.team.net</a> **<br>
&gt; <br>
&gt; Donate: <a href=3D"http://www.team.net/donate.html"; rel=3D"noreferrer =
noreferrer noreferrer" target=3D"_blank">http://www.team.net/donate.html</a=
><br>
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eferrer noreferrer noreferrer" target=3D"_blank">http://www.team.net/piperm=
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errer noreferrer noreferrer" target=3D"_blank">http://www.team.net/archive<=
/a><br>
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</blockquote></div>

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