[Healeys] Electric fan

Wed Oct 30 01:45:34 MDT 2019

A spoiler/baffle/air dam only works at some speed. It will do nothing in 
a traffic jam and little in climbing steep slopes or in slow traffic. 
Fitting a core with extra rows is always a good thing, you can never 
have enough cooling capacity. However it increases air flow resistance 
so you really should fit an electric fan.

Kees Oudesluijs

Op 30-10-2019 om 04:57 schreef Robert Begani:
>
> Stephen:
>
> As part of my rebuilding the engine in my BJ8, I installed a fan on 
> the outside of the radiator with a manual switch for now.  In 
> addition, I installed the “Shovel” a baffle on the underside of the 
> radiator to direct air into the engine compartment rather than going 
> down under the engine.  Early driving of short distances on highways 
> and city streets without the fan indicates that the Shovel is a great 
> improvement for driving without overheating.  I can go along at 20-30 
> mph in light traffic and some stopping with no overheating.  However, 
> you still need a fan to keep the engine from overheating in the hot 
> Florida Sun.
>
> On the other hand, I did not have an overheating problem driving in 
> the Chicago and Suburbs when we lived there for over 30 years which is 
> about the same climate as Toronto, more or less as long as I stayed 
> away from traffic jams in the summer months. Southern Florida is hot 
> all the time!  Next I will re-core the radiator.
>
> Bob Begani
>
> 67 BJ8
>
> *From:* Healeys <healeys-bounces at autox.team.net> *On Behalf Of 
> *warthodson--- via Healeys
> *Sent:* Tuesday, October 29, 2019 1:55 PM
> *To:* s.hutchings at rogers.com; healeys at autox.team.net
> *Subject:* Re: [Healeys] Electric fan
>
> Stephen,
>
> Before adding an electric fan, here are a few things to consider:
>
> I have a 6 bladed fan that was a factory option. It has made a 
> measurable difference on my car. Many of the usual suppliers offer it. 
> Some of these repros. have a reputation for fatigue cracking with 
> disastrous results. I have had mine for 8-10 years & I inspect it 
> annually. No problem so far.
>
> Do you have an original type thermostat that has a moving sleeve to 
> block the bypass port when the t'stat reaches the operating temp? If 
> not, you are loosing some of the radiator's efficiency.
>
> Do you have the original air baffles installed?
>
> Using coolant mix in the summer with 15-25% antifreeze will improve 
> the heat transfer efficiency of your cooling system measurably when 
> compared to a 50% or higher mix.
>
> Some antifreeze is necessary for water pump lubrication. I drain the 
> 50% solution into Jugs in the spring & put a 20% solution in. I save 
> the 50% solution & reverse the process in the fall.
>
> Have you considered having your radiator re-cored with a more 
> efficient core?
>
> Is your electric system capable of the increased load of the electric fan?
>
> Depending upon your definition of practical, I assumed it meant easy 
> &/or inexpensive, there are more things that can be done to improve 
> the cooling system efficiency.
>
> Gary Hodson
>
> -----Original Message-----
> From: Stephen Hutchings <s.hutchings at rogers.com 
> <mailto:s.hutchings at rogers.com>>
> To: Healeys <healeys at autox.team.net <mailto:healeys at autox.team.net>>
> Sent: Tue, Oct 29, 2019 12:02 pm
> Subject: [Healeys] Electric fan
>
> I’m interested in what is the most practical way to install an 
> electric fan.
>
> I know some people opt to keep the original fan blades as well, and 
> switch on the electric one when it’s really needed, and others go for 
> a complete electric replacement with a thermostat.
>
> I haven’t put an electric fan in, and I’ve got away without it so far. 
> But I really hate getting stuck in traffic in hot weather- doesn’t 
> happen often but it can get pretty damn hot under those circumstances, 
> and it would be nice to have one less thing to be concerned with when 
> travelling.
>
> The traffic around Toronto is so awful, no matter how strategic your 
> timing is- you can still get stuck.
>
> Now that my car is put away for the winter, I’m thinking about 
> possible future projects.
>
> Stephen, BJ8
>
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