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[TR] Morgan/TR3 Thermostat Housing Bypass

To: <triumphs@autox.team.net>
Subject: [TR] Morgan/TR3 Thermostat Housing Bypass
From: "Bill Brewer" <billbrewer59@yahoo.com>
Date: Sat, 6 Oct 2018 15:37:11 -0700
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
Thread-index: AdRdw5W4yj225/pwQV++95a7vrRvPQ==
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     On my 1953 Morgan +4 I installed a recirculation hose block-off =
where
it goes back in the water pump. I did the same thing on my TR3 a 20 =
years
ago based on a tip from Bob Schaller=92s booklet =93More BS About =
Triumphs=94. On
the Morgan I turned down a =BD=93 long brass cylinder and put a 1/8=94 =
hole in the
center of it. Worked great on the TR3. It prevents unnecessary =
recirculation
when using a conventional thermostat instead of the sleeved type. =
Anyway, it
worked on the Morgan (vary similar to the TR engine) until I discovered =
the
fan belt was loose. I tightened the belt and bam! It blew out the gasket
between the two thermostat housings when cold. I lapped the two =
thermostat
housings, installed a new conventional thermostat and bam! It blew off =
the
bypass hose. No matter how much I tightened the hose clamp it still =
leaks. I
put on a new hose and it still dribbles.

     Something tells me that the water pump is pumping too hard against =
the
closed thermostat when the car is cold. I could spring for a $115 =
sleeved
thermostat from Moss, but would rather continue using a modern =
conventional
thermostat.

     Anyone else have issues like this? Any ideas?

     TIA,

=20

     -Bill in Tehachapi

=20


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><font =
size=3D3 face=3DCalibri><span style=3D'font-size:12.0pt'>=A0=A0=A0=A0 On =
my 1953 Morgan +4 I installed a recirculation hose block-off where it =
goes back in the water pump. I did the same thing on my TR3 a 20 years =
ago based on a tip from Bob Schaller&#8217;s booklet &#8220;More BS =
About Triumphs&#8221;. On the Morgan I turned down a =BD&#8220; long =
brass cylinder and put a 1/8&#8221; hole in the center of it. Worked =
great on the TR3. It prevents unnecessary recirculation when using a =
conventional thermostat instead of the sleeved type. Anyway, it worked =
on the Morgan (vary similar to the TR engine) until I discovered the fan =
belt was loose. I tightened the belt and bam! It blew out the gasket =
between the two thermostat housings when cold. I lapped the two =
thermostat housings, installed a new conventional thermostat and bam! It =
blew off the bypass hose. No matter how much I tightened the hose clamp =
it still leaks. I put on a new hose and it still =
dribbles.<o:p></o:p></span></font></p><p class=3DMsoNormal><font =
size=3D3 face=3DCalibri><span style=3D'font-size:12.0pt'>=A0=A0=A0=A0 =
Something tells me that the water pump is pumping too hard against the =
closed thermostat when the car is cold. I could spring for a $115 =
sleeved thermostat from Moss, but would rather continue using a modern =
conventional thermostat.<o:p></o:p></span></font></p><p =
class=3DMsoNormal><font size=3D3 face=3DCalibri><span =
style=3D'font-size:12.0pt'>=A0=A0=A0=A0 Anyone else have issues like =
this? Any ideas?<o:p></o:p></span></font></p><p class=3DMsoNormal><font =
size=3D3 face=3DCalibri><span style=3D'font-size:12.0pt'>=A0=A0=A0=A0 =
TIA,<o:p></o:p></span></font></p><p class=3DMsoNormal><font size=3D3 =
face=3DCalibri><span =
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></font></p><p =
class=3DMsoNormal><font size=3D3 face=3DCalibri><span =
style=3D'font-size:12.0pt'>=A0=A0=A0=A0 -Bill in =
Tehachapi<o:p></o:p></span></font></p><p class=3DMsoNormal><font =
size=3D3 face=3DCalibri><span =
style=3D'font-size:12.0pt'><o:p>&nbsp;</o:p></span></font></p></div></bod=
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