Subject: Re: [Mgs] Running hot

From: [email-masked]
Date: Sat, 30 Jan 2021 17:38:40 -0600

--===============3940973404140087551==
Content-Transfer-Encoding: base64

--===============3940973404140087551==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________

[email-masked]

Archive: http://www.team.net/pipermail/mgs http://autox.team.net/archive

Unsubscribe: http://autox.team.net/mailman/options/mgs/[email-masked]

--===============3940973404140087551==--

---

From: Robert's New iPad <[email-masked]>
Date: Sat, 30 Jan 2021 18:50:21 -0500

Hi Rick,
   You have been systematic about this.
   Good question about the opening of the new ‘stat.  As far as I know, they either open completely or not at all.  Others may know for sure.
   Sounds like you did all the right things with your efforts to clean the radiator.  I still wonder if it had sediment that solidified during the time the car was not in service.  Was that a long time?  Antifreeze in the radiator then? 
   Check the side-to-side temps of radiator.  If the sides and centre are not close in temp, I would suspect blockage in the sides. 
   Why the electric fan? My MGB with its yellow plastic fan was happy year round in Sarasota, admittedly not the heat of Houston, but I never had any worries. 
   Is fan turning the right direction? I have heard about that but never seen it.
Bob

> On Jan 30, 2021, at 6:38 PM, [email-masked] wrote:
> 
> Hi Bob,
>    Thanks for the kind words, considered thoughts, and recommendations. I quote (most of) your words here so as to not miss any salient points. 
> 
> > Those of us shivering at 9 degrees this morning, with a wind
> > blowing, almost wish we had your problem.
> 
>    LOL! I may be saying the same thing to you in 6 months, if with 90 degrees added to your 9!
> 
> > Same temp at radiator neck and ‘stat housing suggests
> > that the thermostat is working, though if you have any
> > doubt about it and do not know its age, you might consider
> > replacing it anyway.
> 
>    I agree, but at what flow level? Perhaps the thermostat, which is new, may be not opening fully. If restricting flow, the temperatures before and after the thermostat might equilibrate but without enough coolant flow to keep up with the engine's waste heat.
> 
> > Were you able to measure top/bottom, left/right the
> > radiator core temperature?
> 
>    Yes, but I didn't record the temperatures. I just verified that the bottom if the radiator was cooler than the top.
> 
> > If temp does not reduce from top to bottom, or there are
> > different temps at the same distance down from top,
> > you could suspect the radiator.
> 
>    I will examine further. When restoring the car I cleaned the radiator, inside and out, and straightened any bent 'fins'. I back-flushed the radiator with hose water then once the rinse water 'ran clear', I flushed it forward. Outside I sprayed the fins from both sides, with SimpleGreen then flushed it clean, back to front, with the water hose sprayer, again until the wash water ran clean.
> 
> > I have not had stellar success with radiator cleaning products.
> > My recommendation is to take it to a radiator shop and have it
> > cleaned and serviced.
> 
>    See above.
> 
> > What do you know about this water pump? 
> 
>    It is new.
> 
> > If, when your bring up engine temp from cold, with the rad cap
> > off, you do not see some swirling in top of the radiator, the water
> > pump is suspect.
> 
>    Will check, even though it is new (or perhaps rebuilt in China).
> 
>  Rick
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.75
> 
> Unsubscribe: http://autox.team.net/mailman/options/mgs/[email-masked]

[email-masked]
Donate: http://www.team.net/donate.html
Suggested annual donation  $12.75

---

From: i erbs <[email-masked]>
Date: Sun, 31 Jan 2021 10:31:46 -0800

--===============7446593846616638096==

--000000000000e0449f05ba3673e3
Content-Transfer-Encoding: quoted-printable

If you have access  a thermal gun you can point it at various areas of your
radiator to see if you have cooler blocked areas.

Ira Erbs
1959 AH 100-6
1967 MGB
Milwaukie, OR

On Sat, Jan 30, 2021, 4:10 PM Robert's New iPad <[email-masked]> wrote:

>    Good question about the opening of the new =E2=80=98stat.  As far as I=
 know,
> they either open completely or not at all.  Others may know for sure.
>    Sounds like you did all the right things with your efforts to clean th=
e
> radiator.  I still wonder if it had sediment that solidified during the
> time the car was not in service.  Was that a long time?  Antifreeze in th=
e
> radiator then?
>    Check the side-to-side temps of radiator.  If the sides and centre are
> not close in temp, I would suspect blockage in the sides.
>    Why the electric fan? My MGB with its yellow plastic fan was happy yea=
r
> round in Sarasota, admittedly not the heat of Houston, but I never had an=
y
> worries.
> >    Thanks for the kind words, considered thoughts, and recommendations.
> I quote (most of) your words here so as to not miss any salient points.
> >
> > > Same temp at radiator neck and =E2=80=98stat housing suggests
> >    I agree, but at what flow level? Perhaps the thermostat, which is
> new, may be not opening fully. If restricting flow, the temperatures befo=
re
> and after the thermostat might equilibrate but without enough coolant flo=
w
> to keep up with the engine's waste heat.
> >
> >    Yes, but I didn't record the temperatures. I just verified that the
> bottom if the radiator was cooler than the top.
> >
> >    I will examine further. When restoring the car I cleaned the
> radiator, inside and out, and straightened any bent 'fins'. I back-flushe=
d
> the radiator with hose water then once the rinse water 'ran clear', I
> flushed it forward. Outside I sprayed the fins from both sides, with
> SimpleGreen then flushed it clean, back to front, with the water hose
> sprayer, again until the wash water ran clean.
> >
> > Archive: http://www.team.net/pipermail/mgs http://autox.team.net/archiv=
e
> Unsubscribe: http://autox.team.net/mailman/options/mgs/[email-masked]=
m

--000000000000e0449f05ba3673e3
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">If you have access=C2=A0 a thermal gun you can point it a=
t various areas of your radiator to see if you have cooler blocked areas.<b=
r><br><div data-smartmail=3D"gmail_signature">Ira Erbs<br>1959 AH 100-6<br>=
1967 MGB<br>Milwaukie, OR</div></div><br><div class=3D"gmail_quote"><div di=
r=3D"ltr" class=3D"gmail_attr">On Sat, Jan 30, 2021, 4:10 PM Robert&#39;s N=
ew iPad &lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>&gt; wr=
ote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;=
border-left:1px #ccc solid;padding-left:1ex">Hi Rick,<br>
=C2=A0 =C2=A0You have been systematic about this.<br>
=C2=A0 =C2=A0Good question about the opening of the new =E2=80=98stat.=C2=
=A0 As far as I know, they either open completely or not at all.=C2=A0 Othe=
rs may know for sure.<br>
=C2=A0 =C2=A0Sounds like you did all the right things with your efforts to =
clean the radiator.=C2=A0 I still wonder if it had sediment that solidified=
 during the time the car was not in service.=C2=A0 Was that a long time?=C2=
=A0 Antifreeze in the radiator then? <br>
=C2=A0 =C2=A0Check the side-to-side temps of radiator.=C2=A0 If the sides a=
nd centre are not close in temp, I would suspect blockage in the sides. <br=
=C2=A0 =C2=A0Why the electric fan? My MGB with its yellow plastic fan was h=
appy year round in Sarasota, admittedly not the heat of Houston, but I neve=
r had any worries. <br>
=C2=A0 =C2=A0Is fan turning the right direction? I have heard about that bu=
t never seen it.<br>
Bob<br>
<br>
<br>
&gt; On Jan 30, 2021, at 6:38 PM, <a href=3D"mailto:[email-masked]" ta=
rget=3D"_blank" rel=3D"noreferrer">[email-masked]</a> wrote:<br>
&gt; <br>
&gt; Hi Bob,<br>
&gt;=C2=A0 =C2=A0 Thanks for the kind words, considered thoughts, and recom=
mendations. I quote (most of) your words here so as to not miss any salient=
 points. <br>
&gt; <br>
&gt; &gt; Those of us shivering at 9 degrees this morning, with a wind<br>
&gt; &gt; blowing, almost wish we had your problem.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 LOL! I may be saying the same thing to you in 6 months, i=
f with 90 degrees added to your 9!<br>
&gt; <br>
&gt; &gt; Same temp at radiator neck and =E2=80=98stat housing suggests<br>
&gt; &gt; that the thermostat is working, though if you have any<br>
&gt; &gt; doubt about it and do not know its age, you might consider<br>
&gt; &gt; replacing it anyway.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 I agree, but at what flow level? Perhaps the thermostat, =
which is new, may be not opening fully. If restricting flow, the temperatur=
es before and after the thermostat might equilibrate but without enough coo=
lant flow to keep up with the engine&#39;s waste heat.<br>
&gt; <br>
&gt; &gt; Were you able to measure top/bottom, left/right the<br>
&gt; &gt; radiator core temperature?<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 Yes, but I didn&#39;t record the temperatures. I just ver=
ified that the bottom if the radiator was cooler than the top.<br>
&gt; <br>
&gt; &gt; If temp does not reduce from top to bottom, or there are<br>
&gt; &gt; different temps at the same distance down from top,<br>
&gt; &gt; you could suspect the radiator.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 I will examine further. When restoring the car I cleaned =
the radiator, inside and out, and straightened any bent &#39;fins&#39;. I b=
ack-flushed the radiator with hose water then once the rinse water &#39;ran=
 clear&#39;, I flushed it forward. Outside I sprayed the fins from both sid=
es, with SimpleGreen then flushed it clean, back to front, with the water h=
ose sprayer, again until the wash water ran clean.<br>
&gt; <br>
&gt; &gt; I have not had stellar success with radiator cleaning products.<b=
r>
&gt; &gt; My recommendation is to take it to a radiator shop and have it<br=
&gt; &gt; cleaned and serviced.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 See above.<br>
&gt; <br>
&gt; &gt; What do you know about this water pump? <br>
&gt; <br>
&gt;=C2=A0 =C2=A0 It is new.<br>
&gt; <br>
&gt; &gt; If, when your bring up engine temp from cold, with the rad cap<br=
&gt; &gt; off, you do not see some swirling in top of the radiator, the wat=
er<br>
&gt; &gt; pump is suspect.<br>
&gt; <br>
&gt;=C2=A0 =C2=A0 Will check, even though it is new (or perhaps rebuilt in =
China).<br>
&gt; <br>
&gt;=C2=A0 Rick<br>
&gt; _______________________________________________<br>
&gt; <br>
&gt; <a href=3D"mailto:[email-masked]" target=3D"_blank" rel=3D"norefer=
rer">[email-masked]</a><br>
&gt; Donate: <a href=3D"http://www.team.net/donate.html" rel=3D"noreferrer =
noreferrer" target=3D"_blank">http://www.team.net/donate.html</a><br>
&gt; Suggested annual donation=C2=A0 $12.75<br>
&gt; <br>
&gt; Archive: <a href=3D"http://www.team.net/pipermail/mgs" rel=3D"noreferr=
er noreferrer" target=3D"_blank">http://www.team.net/pipermail/mgs</a> <a h=
ref=3D"http://autox.team.net/archive" rel=3D"noreferrer noreferrer" target=
=3D"_blank">http://autox.team.net/archive</a><br>
&gt; <br>
&gt; Unsubscribe: <a href=3D"http://autox.team.net/mailman/options/mgs/mgbo=
[email-masked]" rel=3D"noreferrer noreferrer" target=3D"_blank">http://autox.=
team.net/mailman/options/mgs/[email-masked]</a><br>
_______________________________________________<br>
<br>
<a href=3D"mailto:[email-masked]" target=3D"_blank" rel=3D"noreferrer">=
[email-masked]</a><br>
errer" target=3D"_blank">http://www.team.net/donate.html</a><br>
<br>
Archive: <a href=3D"http://www.team.net/pipermail/mgs" rel=3D"noreferrer no=
referrer" target=3D"_blank">http://www.team.net/pipermail/mgs</a> <a href=
=3D"http://autox.team.net/archive" rel=3D"noreferrer noreferrer" target=3D"=
_blank">http://autox.team.net/archive</a><br>
<br>
Unsubscribe: <a href=3D"http://autox.team.net/mailman/options/mgs/eyera3000=
@gmail.com" rel=3D"noreferrer noreferrer" target=3D"_blank">http://autox.te=
am.net/mailman/options/mgs/[email-masked]</a><br>
</blockquote></div>

--000000000000e0449f05ba3673e3--

--===============7446593846616638096==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

[email-masked]

--===============7446593846616638096==--