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<p>I think, it must be the seals. I am going to try to get a look
at it with my inspection camera, but I don't think I will be able
to get it inside the box. <br>
</p>
<p>I am afraid the only thing to correct it, is taking out the
heater box and rebuilding it.<br>
</p>
<p>I don't think it could be a mouse nest, from what I can see.<br>
</p>
<p>Roger<br>
</p>
<div class="moz-cite-prefix">On 12/20/18 7:06 AM, DAVID MASSEY
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:53150809.7243587.1545311161014@mail.yahoo.com"> <font
size="3" face="Arial, Helvetica, sans-serif" color="black">
<div> <font size="3">Two things come to mind. <br>
</font></div>
<div><font size="3"><br>
</font></div>
<div><font size="3">1) Air is bypassing the core on that side.
It has been years since I took one apart. Is there a foam
piece sealing off the gap between the core and the
sheetmetal housing that has perished?</font></div>
<div><font size="3"><br>
</font></div>
<div><font size="3">2) The core is partially clogged. Certainly
there is some flow but some tubes may be clogged leaving a
portion of the core cool and, hence, the air is not heated.
(Actually, I have a little difficulty with this one since
the tubes run right-to-left and if there were clogged tubes
the problem would be symmetrical. But still worth looking
into it.)</font><br>
</div>
<div> <br>
</div>
<div style="clear:both"><font size="4">Dave </font></div>
</font></blockquote>
<div class="moz-cite-prefix">On 12/20/18 7:06 AM, DAVID MASSEY
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:53150809.7243587.1545311161014@mail.yahoo.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<font size="3" face="Arial, Helvetica, sans-serif" color="black">
<div> <font size="3">Two things come to mind. <br>
</font></div>
<div><font size="3"><br>
</font></div>
<div><font size="3">1) Air is bypassing the core on that side.
It has been years since I took one apart. Is there a foam
piece sealing off the gap between the core and the
sheetmetal housing that has perished?</font></div>
<div><font size="3"><br>
</font></div>
<div><font size="3">2) The core is partially clogged. Certainly
there is some flow but some tubes may be clogged leaving a
portion of the core cool and, hence, the air is not heated.
(Actually, I have a little difficulty with this one since
the tubes run right-to-left and if there were clogged tubes
the problem would be symmetrical. But still worth looking
into it.)</font><br>
</div>
<div> <br>
</div>
<div style="clear:both"><font size="4">Dave </font><br>
<br>
</div>
<div> <br>
</div>
<div> <br>
</div>
<div
style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original
Message-----<br>
From: Roger Elliott <a class="moz-txt-link-rfc2396E" href="mailto:elliottr@rmi.net"><elliottr@rmi.net></a><br>
To: triumphs <a class="moz-txt-link-rfc2396E" href="mailto:triumphs@autox.team.net"><triumphs@autox.team.net></a><br>
Sent: Wed, Dec 19, 2018 5:13 pm<br>
Subject: [TR] TR 250 Heater problem<br>
<br>
<div dir="ltr">Hi,<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">We were out in my wife's TR 250 the other night
and the heater was <br>
</div>
<div dir="ltr">acting up on the passenger side.<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">The defroster vent seemed to be hot on the
right side of the passenger <br>
</div>
<div dir="ltr">vent, but cold on the left side (the driver's
defroster vent was fine.)<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">The air from the floor vent on the passenger
side was cold, the driver's <br>
</div>
<div dir="ltr">side was fine - at least until a coat was
shoved under the passenger <br>
</div>
<div dir="ltr">side which then diverted the cold to the
driver's side.<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">We took out the glove box and all of the hoses
are hooked up correctly.<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">I can't think of anything that would allow the
air coming from the <br>
</div>
<div dir="ltr">defroster vent be cold on one side and hot
(well okay warm) on the other <br>
</div>
<div dir="ltr">side. The only thing I can think of is that the
seal around the heater <br>
</div>
<div dir="ltr">core is letting cold air past on the passenger
side.<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Any ideas?<br>
</div>
<div dir="ltr"><br>
</div>
<div dir="ltr">Thanks,<br>
</div>
<div dir="ltr">Roger Elliott<br>
</div>
<div dir="ltr"><br>
</div>
<br>
</div>
</font>
</blockquote>
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