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The coolant travels from the bottom of the radiator to the water pump into
the block then from the block into the head then through the thermostat to
the top of the radiator.
M
On Tue., Mar. 29, 2022, 11:57 a.m. Elton S, <eps2660@gmail.com> wrote:
> As a related question, what is the direction of flow through the radiator
> - up from the bottom or down from the top?
> Elton
> BJ7
>
> On Tue, Mar 29, 2022 at 11:44 AM Michael Salter <michaelsalter@gmail.com>
> wrote:
>
>> As Gary points out, and far as I have been able to figure out, the bypass
>> passage is open when the engine is cold, the idea being that by "short
>> circuiting" the radiator the coolant in the heater and bypass passage will
>> warm up more quickly and the heater will produce heat more quickly.
>> We had a slew of the "shrouded " type thermostats that I bought when
>> Smiths Canada closed down. The part number was 43570/28 and we used to sell
>> them to customers who reported overheating problems.
>> I stopped promoting them as a potential solution to overheating issues
>> after being taken to task by a customer who did an extensive study of the
>> issue and proved, at least to my satisfaction, that they improved cooling
>> not one iota.
>>
>> M
>>
>> On Tue., Mar. 29, 2022, 10:47 a.m. Alan Seigrist, <healey.nut@gmail.com>
>> wrote:
>>
>>> I don't know if this has ever been answered before, but where does the
>>> little bypass port begin?
>>>
>>> What parts of the head does that bypass come in contact with?
>>>
>>> When do you want to cover the port with a sleeve (when coolant is hot or
>>> cold?)
>>>
>>> I ask because the old bellows style thermostat will cover the bypass
>>> port when the thermostat opens
>>>
>>> then I have another wax thermostat and the sleeve actually cover the
>>> bypass when it is cold, and doesn't cover it when the thermostat opens....
>>> so it works exact opposite to the old bellows style thermostat.
>>>
>>> confused....
>>>
>>> Cheers,
>>>
>>> Alan
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Content-Transfer-Encoding: quoted-printable
<div dir=3D"auto">The coolant travels from the bottom of the radiator to th=
e water pump into the block then from the block into the head then through =
the thermostat to the top of the radiator.<div dir=3D"auto"><br></div><div =
dir=3D"auto">M</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" c=
lass=3D"gmail_attr">On Tue., Mar. 29, 2022, 11:57 a.m. Elton S, <<a href=
=3D"mailto:eps2660@gmail.com";>eps2660@gmail.com</a>> wrote:<br></div><bl=
ockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #=
ccc solid;padding-left:1ex"><div dir=3D"ltr">As a related question, what is=
the direction of flow through the radiator - up from the bottom or down fr=
om the top?<div>Elton=C2=A0=C2=A0</div><div>BJ7</div></div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Mar 29, 2022=
at 11:44 AM Michael Salter <<a href=3D"mailto:michaelsalter@gmail.com"; =
target=3D"_blank" rel=3D"noreferrer">michaelsalter@gmail.com</a>> wrote:=
<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8=
ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"aut=
o">As Gary points out, and far as I have been able to figure out, the bypas=
s passage is open when the engine is cold, the idea being that by "sho=
rt circuiting" the radiator the coolant in the heater and bypass passa=
ge will warm up more quickly and the heater will produce heat more quickly.=
=C2=A0<div dir=3D"auto">We had a slew of the "shrouded " type the=
rmostats that I bought when Smiths Canada closed down. The part number was =
43570/28 and we used to sell them to customers who reported overheating pro=
blems.=C2=A0</div><div dir=3D"auto">I stopped promoting them as a potential=
solution to overheating issues after being taken to task by a customer who=
did an extensive study of the issue and proved, at least to my satisfactio=
n,=C2=A0 that they improved cooling not one iota.</div><div dir=3D"auto"><b=
r></div><div dir=3D"auto">M</div></div><br><div class=3D"gmail_quote"><div =
dir=3D"ltr" class=3D"gmail_attr">On Tue., Mar. 29, 2022, 10:47 a.m. Alan Se=
igrist, <<a href=3D"mailto:healey.nut@gmail.com"; rel=3D"noreferrer noref=
errer" target=3D"_blank">healey.nut@gmail.com</a>> wrote:<br></div><bloc=
kquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:=
1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">I don't k=
now if this has ever been answered before, but where does the little bypass=
port begin?=C2=A0 =C2=A0<div><br></div><div>What parts of the head does th=
at bypass come in contact with?=C2=A0<br><br>When do you want to cover the =
port with a sleeve (when coolant is hot or cold?)</div><div><br></div><div>=
I ask because the old bellows style thermostat will cover the bypass port w=
hen the thermostat opens<br><br>then I have another wax thermostat and the =
sleeve actually cover the bypass when it is cold, and doesn't cover it =
when the thermostat opens.... so it works exact opposite to the old bellows=
style thermostat.</div><div><br></div><div>confused....<br><br>Cheers,</di=
v><div><br></div><div>Alan</div></div>
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