Cooling Fan

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niclinn75
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Cooling Fan

Post by niclinn75 » Mon Jun 25, 2018 8:23 pm

Hi everyone

Sorry if this has been covered elsewhere which I'm sure it has.

Whats the best cooling fan for the SE6a . My mechanic recommended trying to find one that doesn't clip through the rad.

Makes and sizes and links would be amazing

Thanks in advance

Nathan


SE6a Auto 1978

justfur
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Cooling Fan

Post by justfur » Wed Jun 27, 2018 10:48 pm

Plenty of choice, can't remember where I got mine, I think it's 13 or 14 inches. Bought a metre of 25mm light alloy angle and cut and bent to suit, couple of bolts to hold the fan onto the brackets and then self tappers to hold the brackets onto the top and bottom rails of the rad.

And voila:
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Justin.

1976 SE6 no.49 See more here: https://www.flickr.com/photos/147918531 ... 463353942/

1963 CV8 Mk1 no.10
1967 TR4A

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Cooling Fan

Post by Oxymoron » Thu Jun 28, 2018 1:21 pm

niclinn75 wrote:
Mon Jun 25, 2018 8:23 pm
Hi everyone

Sorry if this has been covered elsewhere which I'm sure it has.

Whats the best cooling fan for the SE6a . My mechanic recommended trying to find one that doesn't clip through the rad.

Makes and sizes and links would be amazing

Thanks in advance

Nathan
Is there a particular reason not to have one that attaches through the radiator?...I'm thinking of changing mine.


1979 SE6a Automatic power steering!

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philhoward
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Cooling Fan

Post by philhoward » Thu Jun 28, 2018 1:23 pm

The "wires" that go through the rad can start to chafe through the gills in the core through vibration = leak. The higher density the radiator core, the more likely this is. The GTE one is quite a high density core compared to something like a Ford of the same era.


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Cooling Fan

Post by stevecrosby63 » Thu Jun 28, 2018 1:39 pm

the fan kit from walkers is very good


i just want to polish things for a change

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Post by DARK STAR » Thu Jun 28, 2018 10:00 pm

Here's mine (trial fit was on old rad :wink: )
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Cooling Fan

Post by mattscimmy » Thu Jun 28, 2018 10:20 pm

I managed to squeeze a 15" Spal fan into my 6a .
Requires a little trim top and bottom but it's a snug fit now and boy does it shift some air compared to the original unit.



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Cooling Fan

Post by Oxymoron » Fri Jun 29, 2018 12:16 pm

My current fan looks pretty rubbish and seems to leak more air to the sides than through the radiator!
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1979 SE6a Automatic power steering!

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philipmasonfrance
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Post by philipmasonfrance » Sat Jul 07, 2018 10:42 am

That looks like an original fan (like mine), but at least yours has some cowling round it to attempt to direct the air towards the rad! My fan is original so a mere 38 years old. I REALLY must do something about replacing it ...... sometime!



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Cooling Fan

Post by mark rudder » Fri Aug 17, 2018 11:32 am

Just stumbled on this topic. Are 6B radiators the same as a 6A?
I've just ordered a Spal 14" 1841 cfm Themo fan & am having a 3 core radiator
made to suit(the fan is 4mm to wide) using the existing header tanks
Changing the 88 deg thermostat to 82 deg.
We've done a lot of measuring, my radiator bloke seems confident.
Any thoughts welcome.


Mark from down under.
Current GTE 6B, Dolomite Sprint, Scirocco R. Past XJS (manual), V12 E-type (manual, convertible, lovely) 350 chev XJ6, TR6, TR4, Sprite, Midget, local Ford V8s, others... There's a pattern here.….

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Old and Slow
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Post by Old and Slow » Fri Aug 17, 2018 1:31 pm

highest efficiency is with the fan sucking air through the rad (i.e. fitted on the engine side of the rad) as trying to push air through a rad is a bit like trying to push string through a hole. :)


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Post by SJM » Fri Aug 17, 2018 4:18 pm

Pumping air is dissimilar to pushing string. There is little to choose in efficiency between sucking and blowing but, with blowing, the fan motor gets an easier time as it is in cool air.



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Post by nickm » Fri Aug 17, 2018 6:01 pm

I bought a 15" fan from the scrappies for £10 and made a fibreglass cowling to fit around the rad/fan unit.
I got a thermoswitch adaptor soldered into my SE5 radiator.
I have it on the rear of the rad sucking the air through and it is pretty close to the crank pulley but
it works a treat.



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Post by mark rudder » Sat Aug 18, 2018 3:17 am

Talking to people who know, CFM is CFM, the only problem is at higher static pressure (eg. restrictive core)
efficiency trails off more blowing, the new core is quite efficient. Its not practical to mount a sucking
fan, minor things like the steering rack are there. Back to the first question, are 6B radiators different
to 6A? Here in Australia we have quite high temperatures, sometimes 40c plus, thou I gather Britain has
had a hot summer!


Mark from down under.
Current GTE 6B, Dolomite Sprint, Scirocco R. Past XJS (manual), V12 E-type (manual, convertible, lovely) 350 chev XJ6, TR6, TR4, Sprite, Midget, local Ford V8s, others... There's a pattern here.….

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Roger Pennington
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Cooling Fan

Post by Roger Pennington » Sat Aug 18, 2018 11:10 am

mark rudder wrote:
Sat Aug 18, 2018 3:17 am
Back to the first question, are 6B radiators different
to 6A?
AFAIK they are different because the water outlets are configured differently . I don't know if there's any difference in core size or makeup, I suspect they are pretty similar if not the same, as they fit in essentially the same space in the chassis?


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