Subject: Re: [Tigers] Blower/Heater

From: Tom Witt via Tigers <[email-masked]>
Date: Tue, 19 Jan 2016 12:29:08 -0800

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Slow is a relative term so it may be that it is running as fast as it =
can =E2=80=93 or not.  If the bushings in the motor are gunked up that =
can slow the motor. First I=E2=80=99d lubricate them to see if it helps. =
 A number of people use the MG Midget/MGB fan motor. It is shorter than =
the stock motor, but if I recall correctly from the CAT shop notes it is =
stated to be faster. While my memory is from years ago I recall it =
seeming to turn faster than the original motor. I doubt because of the =
limited space the heater radiator can be improved.

Beyond that it is probably R&D for a motor/fan improvement.  Thankfully =
heater motors are very adaptable if you have a decent assortment of =
tools.  If it is any inspiration I use the stated the MG Midget =
motor/fan on the heater in my Turbo Pinto.  The original fan motor =
intrudes the engine bay and interferes with the wastegate down spout. In =
this case the shorter motor/fan provides the clearance. I have to run =
the motor backwards and the MG fan is smaller than the Pinto housing but =
it still gets the job done =E2=80=93 for So. Cal..

A thought just occurred to me. If the fan motor was put on a dual pole, =
reversing switch on hot days the interior air could be blown across the =
heater core and exit externally.  This might be helpful for over heating =
issues =E2=80=93 for the car and the driver.

From: Rollright--- via Tigers=20
Sent: Tuesday, January 19, 2016 12:02 PM
To: [email-masked]=20
Subject: Re: [Tigers] Blower/Heater

Hello,

Though my Tiger 1A is tucked away for the Massachusetts winter, thoughts =
of improvements/fix-ups still pass through my head. This question is =
about the anemic demister/heater system.

Two components make up this system
1) the blower with the squirrel cage fan
2) the heater radiator

The blower fan seems like it could use a redesign. SOOOO slow. Mine is =
working same as it ever was. Anybody tried upgrading this?
The radiator seems awfully small. Any smart-guy thoughts on this?

Anything else I should be thinking of? Any Ideas?

Even if the heater isn't regularly used, I'd like to be able to count on =
the system to defog the windshield.=20

Jim Armstrong
382002083
Mk 1A
code 86
TAC # 0763

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[email-masked]

Archive: http://www.team.net/archive
Unsubscribe: =
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<HTML><HEAD>
<META content=3D"text/html; charset=3DUS-ASCII" =
http-equiv=3DContent-Type>
<META name=3DGENERATOR content=3D"MSHTML 11.00.9600.18163"></HEAD>
<BODY id=3Drole_body style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Arial; =
COLOR: #000000"=20
dir=3Dltr bottomMargin=3D7 leftMargin=3D7 rightMargin=3D7 topMargin=3D7>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>Slow is a relative term so it may be that it is running as fast as =
it can =E2=80=93=20
or not.&nbsp; If the bushings in the motor are gunked up that can slow =
the=20
motor. First I=E2=80=99d lubricate them to see if it helps.&nbsp; A =
number of people use=20
the MG Midget/MGB fan motor. It is shorter than the stock motor, but if =
I recall=20
correctly from the CAT shop notes it is stated to be faster. While my =
memory is=20
from years ago I recall it seeming to turn faster than the original =
motor. I=20
doubt because of the limited space the heater radiator can be =
improved.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Beyond that it is probably R&amp;D for a motor/fan =
improvement.&nbsp;=20
Thankfully heater motors are very adaptable if you have a decent =
assortment of=20
tools.&nbsp; If it is any inspiration I use the stated the MG Midget =
motor/fan=20
on the heater in my Turbo Pinto.&nbsp; The original fan motor intrudes =
the=20
engine bay and interferes with the wastegate down spout. In this case =
the=20
shorter motor/fan provides the clearance. I have to run the motor =
backwards and=20
the MG fan is smaller than the Pinto housing but it still gets the job =
done =E2=80=93=20
for So. Cal..</DIV>
<DIV>&nbsp;</DIV>
<DIV>A thought just occurred to me. If the fan motor was put on a dual =
pole,=20
reversing switch on hot days the interior air could be blown across the =
heater=20
core and exit externally.&nbsp; This might be helpful for over heating =
issues =E2=80=93=20
for the car and the driver.</DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV>&nbsp;</DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A =
title=[email-masked]=20
href=3D"mailto:[email-masked]">Rollright--- via Tigers</A> </DIV>
<DIV><B>Sent:</B> Tuesday, January 19, 2016 12:02 PM</DIV>
<DIV><B>To:</B> <A title=[email-masked]=20
href=3D"mailto:[email-masked]">[email-masked]</A> </DIV>
<DIV><B>Subject:</B> Re: [Tigers] Blower/Heater</DIV></DIV></DIV>
<DIV>&nbsp;</DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'><FONT=20
id=3Drole_document color=3D#000000 size=3D2 face=3DArial>
<DIV>Hello,</DIV>
<DIV>&nbsp;</DIV>
<DIV>Though my Tiger 1A is tucked away for the Massachusetts winter, =
thoughts of=20
improvements/fix-ups still pass through my head. This question is about =
the=20
anemic demister/heater system.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Two components make up this system</DIV>
<DIV>1) the blower with the squirrel cage fan</DIV>
<DIV>2) the heater radiator</DIV>
<DIV>&nbsp;</DIV>
<DIV>The blower fan seems like it could use a redesign. SOOOO slow. Mine =
is=20
working same as it ever was. Anybody tried upgrading this?</DIV>
<DIV>The radiator seems awfully small. Any smart-guy thoughts on =
this?</DIV>
<DIV>&nbsp;</DIV>
<DIV>Anything else I should be thinking of? Any Ideas?</DIV>
<DIV>&nbsp;</DIV>
<DIV>Even if the heater isn't regularly used, I'd like to be able to =
count on=20
the system to defog the windshield.=20
<DIV>&nbsp;</DIV>
<DIV><FONT lang=3D0 size=3D2 face=3DArial ptsize=3D"10" =
family=3D"SANSSERIF">Jim=20
Armstrong<BR>382002083<BR>Mk 1A<BR>code 86<BR>TAC #=20
0763</FONT></DIV></DIV></FONT>
<P>
<HR>
_______________________________________________<BR><BR>[email-masked].=
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---

From: Stu via Tigers <[email-masked]>
Date: Tue, 19 Jan 2016 17:52:36 -0500

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Agree on both counts.  I had my heater core rodded out and sealed up a
bunch of years back, and the system went from way to little heat to just
plain too little heat.  And reconditioning the blower motor couldn't hurt
either.

But here near Boston, no way it would have been enough for today...

Stu

On Tue, Jan 19, 2016 at 5:24 PM, Ron Fraser via Tigers <
[email-masked]> wrote:

> Jim
>     The blower motor on my Tiger was running slow at one time.  I found
> that the motor was drawing over 1 amp.  The motor bushings were seized to
> the motor.
> I cleaned the motor shaft and lubed the bushings.  The blower ran much
> better and only drew around .1 amp.  I don't recall exactly what the final
> amp draw was, too long ago.   Checking the amp draw is one way of checking
> the motor/ bushing condition.
>
>     The heater core is sized nicely IMO.
> You have to check that the core is not plugged - I back flush the core now
> and then to get the sediment out of it.
> The air has to go through the core not around it for it to work correctly.
>
> Ron Fraser
>
>
>  -----Original Message-----
> *From:* Tigers [mailto:[email-masked]] *On Behalf Of *Rollright---
> via Tigers
> *Sent:* Tuesday, January 19, 2016 3:02 PM
> *To:* [email-masked]
> *Subject:* Re: [Tigers] Blower/Heater
>
> Hello,
>
> Though my Tiger 1A is tucked away for the Massachusetts winter, thoughts
> of improvements/fix-ups still pass through my head. This question is about
> the anemic demister/heater system.
>
> The blower fan seems like it could use a redesign. SOOOO slow. Mine is
> Even if the heater isn't regularly used, I'd like to be able to count on
> the system to defog the windshield.
>
> Jim Armstrong
> 382002083
> Mk 1A
> code 86
> TAC # 0763
>
>
> Donate: http://www.team.net/donate.html
> Forums: http://www.team.net/forums
> Unsubscribe:
> http://autox.team.net/mailman/options/tigers/[email-masked]
>
>
>
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:small">Agr=
ee on both counts.=C2=A0 I had my heater core rodded out and sealed up a bu=
nch of years back, and the system went from way to little heat to just plai=
n too little heat.=C2=A0 And reconditioning the blower motor couldn&#39;t h=
urt either. =C2=A0</div><div class=3D"gmail_default" style=3D"font-size:sma=
ll"><br></div><div class=3D"gmail_default" style=3D"font-size:small">But he=
re near Boston, no way it would have been enough for today...</div><div cla=
ss=3D"gmail_default" style=3D"font-size:small"><br></div><div class=3D"gmai=
l_default" style=3D"font-size:small">Stu</div></div><div class=3D"gmail_ext=
ra"><br><div class=3D"gmail_quote">On Tue, Jan 19, 2016 at 5:24 PM, Ron Fra=
ser via Tigers <span dir=3D"ltr">&lt;<a href=3D"mailto:[email-masked]=
t" target=3D"_blank">[email-masked]</a>&gt;</span> wrote:<br><blockq=
uote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc =
solid;padding-left:1ex"><u></u>

<div style=3D"FONT-FAMILY:Arial;COLOR:#000000;FONT-SIZE:10pt">
<div><span>Jim</span></div>
<div><span>=C2=A0=C2=A0=C2=A0 The blower motor on my=20
Tiger was running slow at one time.=C2=A0 I found that the motor was drawin=
g=20
over 1 amp.=C2=A0 The motor bushings were seized to the motor.</span></div>
<div><span>I cleaned the motor shaft and lubed the=20
bushings.=C2=A0 The blower ran much better and only drew around .1 amp.=C2=
=A0 I=20
don&#39;t recall exactly what the final amp draw was, too long ago.=C2=A0=
=C2=A0=20
Checking the amp draw is one way of checking the motor/ bushing=20
condition.</span></div>
<div><span></span>=C2=A0</div>
<div><span>=C2=A0=C2=A0=C2=A0 The heater core is sized=20
nicely IMO.</span></div>
<div><span>You have to check that the core is not=20
plugged - I back flush the core now and then to get the sediment out of=20
it.</span></div>
<div><span>The air has to go through the core not=20
around it for it to work correctly.</span></div>
<div><span></span>=C2=A0</div>
<div><span>Ron Fraser</span></div>
<div><span></span>=C2=A0</div>
<div><span></span>=C2=A0</div>
<div><span></span>
<div></div><font face=3D"Tahoma"><font face=3D"Arial"><span>=C2=A0</span></=
font>-----Original=20
Message-----<br><b>From:</b> Tigers [mailto:<a href=3D"mailto:tigers-bounce=
[email-masked]" target=3D"_blank">[email-masked]</a>] <b>O=
n=20
Behalf Of </b>Rollright--- via Tigers<br><b>Sent:</b> Tuesday, January 19, =
2016=20
3:02 PM<br><b>To:</b> <a href=3D"mailto:[email-masked]" target=3D"_b=
lank">[email-masked]</a><br><b>Subject:</b> Re: [Tigers]=20
Blower/Heater<br><br></font></div>
<blockquote style=3D"MARGIN-RIGHT:0px" dir=3D"ltr"><font face=3D"Arial">
  <div>Hello,</div>
  <div>=C2=A0</div>
  <div>Though my Tiger 1A is tucked away for the Massachusetts=C2=A0winter,=
=20
  thoughts of improvements/fix-ups still pass through my head. This questio=
n is=20
  about the anemic demister/heater system.</div>
  <div>=C2=A0</div>
  <div>Two components make up this system</div>
  <div>1) the=C2=A0blower with the squirrel cage fan</div>
  <div>2) the heater radiator</div>
  <div>=C2=A0</div>
  <div>The blower=C2=A0fan seems like it could use a redesign. SOOOO slow. =
Mine=20
  is working same=C2=A0as it ever was.=C2=A0Anybody tried=20
  upgrading=C2=A0this?</div>
  <div>The radiator seems awfully small. Any smart-guy thoughts on this?</d=
iv>
  <div>=C2=A0</div>
  <div>Anything else I should be thinking of? Any Ideas?</div>
  <div>=C2=A0</div>
  <div>Even if the heater isn&#39;t regularly used, I&#39;d like to be able=
 to count on=20
  the system to defog the windshield.=20
  <div>=C2=A0</div>
  <div><font lang=3D"0" face=3D"Arial">Jim=20
  Armstrong<br>382002083<br>Mk 1A<br>code 86<br>TAC #=20
0763</font></div></div></font></blockquote></div>
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<br></blockquote></div><br></div>

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