[Healeys] Heater query

Mon Jul 17 16:40:27 MDT 2023

This is great feedback David!

On Mon, Jul 17, 2023 at 4:49 PM David Nock BCS via Healeys <
healeys at autox.team.net> wrote:

> For an update on radiators and cooling
>
> This Sunday the GGAHC had their Ice Cream Social in Danville California,
> Afterwards I had wine event and a friends winery in Lodi.
>
> If you havent heard we are in the middle of a major heat wave here in
> Central California. The day time temp at noon on Sunday way 105 degrees and
> warmed up to a mild 109 by 4 pm.
>
> Of course since I started out at our Club event I took the Healey. With a
> alluminium radiator.
>
> The engine temperature ran a steady 185 to  190 degrees at 70 mph
>
> This is how  I like to test something. A real life personal test on how a
> part works.
>
>
>
> David Nock
> British Car Specialists
> 209-948-8767
> www.britishcarspecialists.com
>
>
>
> *From:* David Nock BCS
> *Sent:* Thursday, July 13, 2023 9:08 AM
> *To:* Leonard Berkowitz ; healeys at autox.team.net
> *Subject:* Re: [Healeys] Heater query
>
> We have been dealing with the British  Car industry for only about 70
> years, from an independent shop in the 50s and 60s, then a BL dealer in the
> 70s and 80s. Then back to an independent repair shop dealing strictly
> British Cars the entire time.
>
> WE have dealt with running hot and overheating the entire time. Up until
> about 10 years ago we had been installing a special high efficency radiator
> core in all our radiators. We would not paint the cores, change the necks
> to a short neck allowing a higher pressure cap, correct thermostats,
> installed air ducts correctly. All of these things helped.
>
> I am personnally hesitant to make changes until I have installed in my own
> personal car and actually seen a difference. On my BN4 I have a highly
> upgraded motor, a 3000 motor that is bored .060 over, perfomance MSD
> ignition and much more. I was continually having hot running problems here
> in the central valley of California with the summer temps always in the
> high 90s and upto 110.
>
> I removed one of my upgraded radiators and installed an alluminium
> radiator, with 2 rows of  1” tubes. The original Healey radiator is a 2 row
> core with 1/2 tubes, the upgraded core we have been installing is a 3 row
> core with 3/8 tubes with a new style fin. This esentially gave us more tube
> to fin area as well as more fin to air surface.
>
> Now with the newer alloy radiator we gained more tube size, more tube to
> fin and more fin to air contact, This making better cooling.
>
> Now for the test, I installed the alloy radiator in my car, and
> immediately the running temperature dropped by about 10 to 20 degrees
> depending on the day. However I still had an issue with slow traffic
> speeds. It was much better  but I wanted to make it better. So I installed
> a pusher fan on a thermostat set at 180 degrees, and now all the heating
> issues are gone.
>
> So maybe if you compare equal sized radiators with equal fins and tubes,
> the copper brass radiators are better. But my own personal test in my car
> proved to me that the alloy radiator was the cure.
>
>
>
> David Nock
> British Car Specialists
> 209-948-8767
> www.britishcarspecialists.com
>
> *From:* Leonard Berkowitz via Healeys
> *Sent:* Thursday, July 13, 2023 6:43 AM
> *To:* healeys at autox.team.net
> *Subject:* Re: [Healeys] Heater query
>
> I do not have any experience with aluminum radiators but I have tried oil
> coolers, "Texas fans", and electric fans. I finally had my original recored
> with a core that has extra rows. The upper tank is original but the lower
> is thicker, which made installation a little challenging. The radiator has
> been in for at least 15-20 years.  I have driven under almost every
> condition- very hot ambient temps, high speed (80-90MPH) traffic etc. and
> the engine temps stay where they should be.  Strongly recommend this
> option, especially since it almost impossible to distinguish my radiator
> from the stock original and it has worked to perfection.
> Len B
> ------------------------------
> *From:* Healeys <healeys-bounces at autox.team.net> on behalf of
> warthodson--- via Healeys <healeys at autox.team.net>
> *Sent:* Tuesday, July 11, 2023 9:49 AM
> *To:* healeys at autox.team.net <healeys at autox.team.net>; BJ8Healeys <
> sbyers at ec.rr.com>
> *Subject:* Re: [Healeys] Heater query
>
> My 100 radiator is in need of some rehabilitation. It either needs to be
> boiled out, which would not replace some of the damaged fins, or re-cored.
> I am leaning toward re-coring but that would be more expensive, which leads
> to the aluminum option.
> Besides price what are the pros vs. cons of these options? Does anyone
> know if re-cored 100 radiator is more efficient than an aluminum radiator?
> Gary H
>
> On Monday, July 10, 2023 at 09:02:21 PM CDT, BJ8Healeys via Healeys <
> healeys at autox.team.net> wrote:
>
>
>
> I live in the sunny South (90° F and 90% relative humidity today) and I
> used to refer to my BJ8’s heater as the “auxiliary engine cooler”; but I no
> longer have to use  it that way since I had a modern core installed in the
> radiator and added a 190° sleeved thermostat that I bought from Kees.
>
>
>
> Steve Byers
>
> HBJ8L/36666
>
> BJ8 Registry
>
> AHCA Delegate at Large
>
> Havelock, NC  USA
>
>
>
>
>
> ------------------------------
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