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Thermo Fans
https://www.ausmini.com/forums/viewtopic.php?f=2&t=94059		 Page 1 of 2
Author:  jprior2912 [ Mon Oct 24, 2016 10:23 am ]
Post subject:  Thermo Fans
Hi everyone,

Considering a thermo fan, now that it's coming into summer - what is the best one to buy? It would be going into a deluxe, are they any available that don't require any mods really?

Cheers!
James
Author:  timmy201 [ Mon Oct 24, 2016 10:48 am ]
Post subject:  Re: Thermo Fans
This one looks to fit really well James:
viewtopic.php?p=1004641#p1004641
fuzzy-hair-man wrote:
A Spal 10" low profile puller fan fits perfectly height and width wise (no I mean it I doubt it could fit any better) between the radiator and the guard on mine.
http://www.theminiforum.co.uk/forums/topic/253043-spot-the-micra-mini/?p=3019396

Keeps the CG13DE cool when the ECU eventually turns in on...


Image
Author:  deluxe67 [ Mon Oct 24, 2016 11:02 am ]
Post subject:  Re: Thermo Fans
Don't know why you would ever need one if your standard cooling system is in good shape...
Author:  drmini in aust [ Mon Oct 24, 2016 11:05 am ]
Post subject:  Re: Thermo Fans
deluxe67 wrote:
Don't know why you would ever need one if your standard cooling system is in good shape...

I agree. Just something else to go wrong. I'd sooner add a heater core as aux rad. :wink: KISS.
Author:  deluxe67 [ Mon Oct 24, 2016 11:15 am ]
Post subject:  Re: Thermo Fans
Hi Jp,

I wrote this on another forum last week..

"Hi On the road,

I have a fairly seriously souped up 1293 Mini I drove in Indonesia (hot tropical weather!) for a year. Cooling system is stock standard (except alloy radiator which I don't think is any more efficient than the standard one?) and the temperature gauge never got to halfway even in gridlocked traffic (normal in Bali!).
So, in my experience, a properly set up standard cooling system is all you need. Sort that out and toss the other stuff."

Cheers

Michael
Author:  jprior2912 [ Mon Oct 24, 2016 11:33 am ]
Post subject:  Re: Thermo Fans
Thanks guys,

Well I'm not sure, I've pulled everything down over the past few days - head off, (head gasket fine), water pump in good nic, and high flow type, fan in good shape (right way around), radiator looks clean.

Even in winter, you would pull up and idle for a few mins, temp would climb almost straight away (checked also with infrared)

Also did this with properly tuned SU's, and a weber , so not a mixture issue.

I'm just stumped, thought a thermo fan couldn't hurt... they're pretty widely used.
Author:  deluxe67 [ Mon Oct 24, 2016 11:52 am ]
Post subject:  Re: Thermo Fans
jp,

Something is not right. What's the thermostat doing? You could trying running the car without a thermostat (should run cool) and see what happens while you test the thermostat (boil it up in a pot of water) itself to see if it's opening at the rated temp using your infrared gizzmo?
My feeling is that a thermo fan may reduce the symptoms but not solve an underlying problem with the cooling system..
Author:  jprior2912 [ Mon Oct 24, 2016 12:51 pm ]
Post subject:  Re: Thermo Fans
deluxe67 wrote:
jp,

Something is not right. What's the thermostat doing? You could trying running the car without a thermostat (should run cool) and see what happens while you test the thermostat (boil it up in a pot of water) itself to see if it's opening at the rated temp using your infrared gizzmo?
My feeling is that a thermo fan may reduce the symptoms but not solve an underlying problem with the cooling system..


Thermostat is definitely OK. I had already tried the 'put in hot water' test. Thermostat begins to open @ 65deg and fully opened by 75 which it is rated for.

Cheers
Author:  deluxe67 [ Mon Oct 24, 2016 1:04 pm ]
Post subject:  Re: Thermo Fans
I'm out of ideas! Doc, where are you?!
Author:  drmini in aust [ Mon Oct 24, 2016 1:40 pm ]
Post subject:  Re: Thermo Fans
deluxe67 wrote:
I'm out of ideas! Doc, where are you?!

I'm with you. My gauge sits in the middle in traffic on a hot day (stock Oz 3 core rad + matic heater).

I have the head off it here and the gasket is fine. I suspect his alloy radiator may be part blocked (as they do).
JP has a super 2 core, I suggest he fits that.
Author:  deluxe67 [ Mon Oct 24, 2016 1:45 pm ]
Post subject:  Re: Thermo Fans
Could it be running too retarded, would that do it?
Author:  drmini in aust [ Mon Oct 24, 2016 2:54 pm ]
Post subject:  Re: Thermo Fans
I checked that last time he drove up here. Modified curve Pulsar dizzy with 30deg total advance @ 3500. It's fine.
Author:  deluxe67 [ Mon Oct 24, 2016 3:12 pm ]
Post subject:  Re: Thermo Fans
Does it have a bypass hose?
Author:  timmy201 [ Mon Oct 24, 2016 3:27 pm ]
Post subject:  Re: Thermo Fans
Yes, it has a bypass hose (made it hard to get the head off without undoing it first :lol: )
Author:  jprior2912 [ Mon Oct 24, 2016 3:51 pm ]
Post subject:  Re: Thermo Fans
The only thing I can think of is that the radiator is partly blocked - being alloy I've no way of really checking.

Will fit the super 2 core I have when I get the head back!
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