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 Posted: Jun 18, 2019 06:08AM
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Or add an oil cooler.  Mine never overheats,

 Posted: Jun 18, 2019 04:42AM
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The first thing to do is verify that the temp gauge is accurate.

 Posted: Jun 17, 2019 03:06PM
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hi trevor94..  I have set up the last 50 or so  minis and mokes I have sold.  with super 4 core alloy rad.(54 MM wide . it is twice the size of super 2 core.. from Winning Spares in China..  cost is about $48 and  $60 for shipping with DHL.. I also use the six blade Metal Tropical fan..  silicone hoses.. and  I drill hoses in the thermo ..about six small one..  take spring out. and then over flow tank from a OZ moke.  this is the set I used in my Blues wagon. and drove to MME in Magog. Quebec.. in 2000 and 2003.. using same in my pick up now.. and my other 4 classic minis.. later b c

 Posted: Jun 17, 2019 02:55PM
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US
I think that the super 2 core sold by our host is about the best radiator.   In addition to what the other folks recommended, when was the last time the cooling system was flushed?  If I remember correctly should be about every 2 years.

 

"To catch one, you need one"....John Cooper

 Posted: Jun 17, 2019 01:51PM
 Edited:  Jun 17, 2019 04:02PM
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Quote:
Originally Posted by trevor94
I have a 1972 Austin mini 1275 with dual su's, heats to about 210 on highway. Fan is right up against radiator. I also took the heater core out due to leaking. Going to an aluminum radiator with 11 blade fan. What should the distance between radiator & fan be. I hear 1/4" to 3". What are some of your ideas. Is the heater core really important if I don't need heat
Typically i like to set them up as close as possible but with no more than two spacers with the blade not protruding past the fan shroud.
Try the aluminum radiator first then if need be add a heater or secondary radiator into the mix.
Make sure the timing, valves, points (if present) and carburation is correct too.
I use a 180 deg thermostat here in Florida.


If in doubt, flat out. Colin Mc Rae MBE 1968-2007.

Give a car more power and it goes faster on the straights,
make a car lighter and it's faster everywhere. Colin Chapman.

 Posted: Jun 17, 2019 10:54AM
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Heater cores also help with additional water capacity in the whole system. It may be only a few more ounces but every bit helps.
 
Another helper is to add an auxilary radiator... Plumb it in as the heater matrix would connect but let it be out front of the engine capturing additional airflow and some cooling.

Make sure your antifreeze typically mix Correct = typically mix is 50/50 - these cars serve better with 30/70   30% antifreeze - 70% water.

Water wetter product Also helps cooling temp transfer better too.

 Posted: Jun 17, 2019 09:43AM
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US
an aluminum rad is less conductive than copper one.

 Posted: Jun 17, 2019 09:20AM
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CA
I think I'm running an 86 degree

 

"Everybody should own a MINI at some point, or you are incomplete as a human being" - James May

"WET COOPER", Partsguy1 (Terry Snell of Penticton BC ) - Could you send the money for the unpaid parts and court fees.
Ordered so by a Judge

 

 

 

 Posted: Jun 17, 2019 09:05AM
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Thanks, will check the thermostat. What is a good temp for that 

 Posted: Jun 17, 2019 08:59AM
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CA

Not sure of the actual measurement.....but pretty darn close is about right.

Ensure that the fan is on the right way around.  It's common to have a PO or mechanic mount it bass akwards. ( smooth side of the centre towards engine )

Either way it still pushed air, but the correct way pushes much more air due to the angle/pitch/shape of the fan.
If it is backwards....it's not cooling enough.

What temp thermostat?

 

"Everybody should own a MINI at some point, or you are incomplete as a human being" - James May

"WET COOPER", Partsguy1 (Terry Snell of Penticton BC ) - Could you send the money for the unpaid parts and court fees.
Ordered so by a Judge

 

 

 

 Posted: Jun 17, 2019 08:06AM
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I have a 1972 Austin mini 1275 with dual su's, heats to about 210 on highway. Fan is right up against radiator. I also took the heater core out due to leaking. Going to an aluminum radiator with 11 blade fan. What should the distance between radiator & fan be. I hear 1/4" to 3". What are some of your ideas. Is the heater core really important if I don't need heat