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<p>I'm switching over to DOT5. I removed all my hydraulics and sent
them off to White Post in Va for rebuilding. Fifteen years ago WP
over-size bored and pressed brass inserts into all my hydraulics.
I'm afraid I've neglected the system in the meantime. My clutch
master cylinder started leaking and it bubbled up the surrounding
paint. The DOT4 fluid turned gelatinous and developed a
precipitate. WP is probably assembling the cylinders using DOT4
but I don't care. When I receive the items they're going back in
with DOT5. I'll let you know how it turns out.</p>
<p><br>
</p>
<p>David Brady, TR250, CD8124L <done with dot3/4></p>
<p><br>
</p>
<div class="moz-cite-prefix">On 09/10/2017 09:25 AM, Paul Tegler
wrote:<br>
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<p>Just like many of the replacement cyl boxes state.... warranty
voided if you use silicone fluid (Dot 5)</p>
<p>What it boils down to is 5 does not lubricate the rubber seals
the way 3/4 does. It's also a crap shoot</p>
<p>as it effects synthetic vs natural rubber seals differently</p>
<p>I too have been running 5 in all my LBC's for years. Yes, I've
replaced a master or two, but no more than when I was running 3<br>
</p>
<div class="moz-signature">Paul Tegler <a moz-do-not-send="true"
class="moz-txt-link-abbreviated"
href="mailto:ptegler@verizon.net">ptegler@verizon.net</a> <a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="http://www.teglerizer.com">www.teglerizer.com</a></div>
<div class="moz-cite-prefix">On 9/9/2017 7:12 PM, dave wrote:<br>
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cite="mid:002801d329c1$25aabdd0$71003970$@ranteer.com">
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<p class="MsoNormal">I think that’s a good idea, but I don’t
really think its true<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Triumphs [<a
moz-do-not-send="true" class="moz-txt-link-freetext"
href="mailto:triumphs-bounces@autox.team.net">mailto:triumphs-bounces@autox.team.net</a>]
<b>On Behalf Of </b>Cliff Hansen<br>
<b>Sent:</b> Saturday, September 9, 2017 12:04 PM<br>
<b>To:</b> David Friedlander <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:forzion7@gmail.com"><forzion7@gmail.com></a>;
Randall <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:TR3driver@ca.rr.com"><TR3driver@ca.rr.com></a><br>
<b>Cc:</b> TR3 Triumphs <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:triumphs@autox.team.net"><triumphs@autox.team.net></a>;
Ann Carletta <a moz-do-not-send="true"
class="moz-txt-link-rfc2396E"
href="mailto:anncarletta@yahoo.com"><anncarletta@yahoo.com></a><br>
<b>Subject:</b> Re: [TR] Brake Fluid for TR3A<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">You can’t switch from DOT3/4 to DOT 5
without replacing _<i>all</i>_ of the non-metal parts:
caliper seals, hoses, master cylinder seals, and thoroughly
cleaning the metal parts. I’m guessing that they used DOT3
brake fluid as a lubricant when they assembled the master
cylinder.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Sent from <a
href="https://go.microsoft.com/fwlink/?LinkId=550986"
moz-do-not-send="true">Mail</a> for Windows 10<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From: </b><a
href="mailto:forzion7@gmail.com" moz-do-not-send="true">David
Friedlander</a><br>
<b>Sent: </b>Saturday, September 9, 2017 9:13 AM<br>
<b>To: </b><a href="mailto:TR3driver@ca.rr.com"
moz-do-not-send="true">Randall</a><br>
<b>Cc: </b><a href="mailto:triumphs@autox.team.net"
moz-do-not-send="true">TR3 Triumphs</a>; <a
href="mailto:anncarletta@yahoo.com"
moz-do-not-send="true">Ann Carletta</a><br>
<b>Subject: </b>Re: [TR] Brake Fluid for TR3A<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Comic Sans
MS";color:#000099">Randall;<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099">I am installing new brake
master cylinders in my TR3 and the boxes <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099">theycame in had the label
you can see in the attached photo. <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099">What do you make of this?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099">I run DOT5 in my TR6
without issue but am rebuilding this <o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099">TR3 and wanted to use DOT5
here as well...<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099">Thanks,<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099"><o:p> </o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099">Dave Friedlander<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099">Maine<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-family:"Comic
Sans MS";color:#000099"><o:p> </o:p></span></p>
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<div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">On Sat, Sep 9, 2017 at 2:35 AM,
Randall <<a href="mailto:TR3driver@ca.rr.com"
target="_blank" moz-do-not-send="true">TR3driver@ca.rr.com</a>>
wrote:<o:p></o:p></p>
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<p class="MsoNormal">There is no clear consensus on
brake fluid. Some of us love DOT 5 silicone,<br>
others hate it.<br>
<br>
But I do recommend that you find out what you have
before topping up; and<br>
also look for where it is leaking. Since this is a
single circuit braking<br>
system, it only takes one leak to rob you of all
hydraulic brakes. Not a<br>
good feeling, especially when you're going downhill
into an underground<br>
parking garage, and the handbrake is also broken!<br>
<br>
Also, if you don't have DOT 5, any other brake fluid
will eat paint promptly<br>
and promote rust. And any of them will ruin the rear
brake shoes if it gets<br>
on them.<br>
<br>
If you do use one of the non-silicone formulas, you
also shouldn't keep an<br>
old can of it. They suck moisture directly from the
air, once the can has<br>
been opened, and start getting old. That's why you
should always open a new<br>
can; and change it in your braking system every few
years, even if you don't<br>
drive the car. (Just one of the many reasons I like
DOT 5, it doesn't suck<br>
<g>)<br>
<br>
Here is a good article (IMO) on the pros & cons of
DOT 5<br>
<a
href="http://www.buckeyetriumphs.org/technical/Brakes/Fluid/Fluid.htm"
target="_blank" moz-do-not-send="true">http://www.buckeyetriumphs.org/technical/Brakes/Fluid/Fluid.htm</a><br>
If you are a glutton for punishment, you can also find
the SAE papers that<br>
it references here<br>
<a
href="https://drive.google.com/open?id=0B2H2NJt34OffdnhWS19scjlNUU0"
target="_blank" moz-do-not-send="true">https://drive.google.com/open?id=0B2H2NJt34OffdnhWS19scjlNUU0</a><br>
<br>
Of all the TR3s I've driven and owned, only my current
"barn find" 56 needed<br>
lead (substitute). I eventually changed the head, and
now I don't use lead.<br>
My previous TR3A engine went well over 100,000 miles
without ever having<br>
lead added.<br>
<span style="color:#888888"><br>
<span class="hoenzb">-- Randall</span></span><o:p></o:p></p>
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