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Alloy Radiator's - What to run in them?
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Author:  Mini Mad [ Tue Mar 16, 2010 9:24 am ]
Post subject:  Alloy Radiator's - What to run in them?
Alot of people on here have recently bought the cheap alloy radiators off ebay, i also run one in my conversion.

I have the radiator out of the car at the moment and i've given it a flush with the hose, what is the best stuff to run in these? Coolant? Corrosion inhibitor? etc?
Author:  TheMiniMan [ Tue Mar 16, 2010 9:43 am ]
Post subject: 
one of the best "Coolants" in the world is just plain simple """WATER"""

But,,, """Most""" people these days seem to assume that the word "Coolant" is that green stuff you pour into the radiator,,, well the fact is,, that green stuff you pour into the radiator is actually "Mainly" a """CORROSION INHIBITOR"""

it also "Usually" contains some other stuff, like Glycol (a dam good coolant) & a lubrctive of some sort to help lube the water pump sel, & some other chemicals that i have no idea about

so,,, "COOLANT" = water

corrosion inhibiotr is exactly that = inhibits (or helps stop) corrosion

so yes,,, put water in & add some corrosion inhibitor ,,, that`s what should be put into your raditaor

:-)
Author:  girtp [ Tue Mar 16, 2010 9:53 am ]
Post subject: 
I have been using a mixture of traditional coolant and water, however I have also been using a product called "Water Wetter" and have dropped approx 5c in track conditions.

We have also used in other cars and had upto 10c cooler, the manufacture claim 15-20c......

Worked for me !

PG
Author:  Fiji [ Tue Mar 16, 2010 10:44 am ]
Post subject: 
how much are these cheap alloy radiators, i might have to get me one ..?
Author:  drmini in aust [ Tue Mar 16, 2010 11:55 am ]
Post subject: 
I would use the coolant specified for a Ford Falcon, which also has an alloy head and radiator.
I'd change it and flush the radiator every year or so, unless you want to start cutting the alloy tanks off to clean the cores... :lol:

If you were to run plain water, the alloy rad would `do a thermo housing' ie. sacrifice itself to protect the cast iron head and block. Not a good look....
Author:  Hanra [ Tue Mar 16, 2010 11:57 am ]
Post subject: 
You would think I would know what coolant I used in my XR6.....? I do remember it said on the bottle it was suited for Falcon/XR6 and V6 Crummbodores.
Author:  sgc [ Tue Mar 16, 2010 12:03 pm ]
Post subject: 
I've used Tectalloy 90 in mine (copper radiator, not alloy) for years and it's spotless...

I changed the water pump last year and aside from a little pitting, the pressed impeller was in pretty good nick, considering how long it had been on there. #1 bore was spotless, no rust whatsoever.
Author:  slinkey inc [ Tue Mar 16, 2010 12:45 pm ]
Post subject: 
I've just recently put the cheap alloy rad in the Mini with one waiting for my Starlet project.

Would earthing the radiator improve it's resistance to corrosion? I'm no chemist so I have no idea, I've been recommended to do it and have (little wire from radiator cowling mount to body) but I have no idea if it'll do anything.
Author:  sgc [ Tue Mar 16, 2010 2:13 pm ]
Post subject: 
I would have thought earthing the radiator would improve your chances of electrolysis. As standard they're rubber mounted and electrically isolated from the body, so assuming that's still true and the mounts are in good condition there is zero voltage drop between the coolant and the radiator.

Earth the radiator, and you develop the potential for a voltage drop, which makes for electrolysis.
Author:  mattsmadmini [ Tue Mar 16, 2010 3:01 pm ]
Post subject: 
Fiji wrote:
how much are these cheap alloy radiators, i might have to get me one ..?


$97 when i bought one...

Goes well :)

ive used Tectaloy Gold (around $18/L bottle) its a concentrate making 15L from the 1L bottle.... :shock: Little asian brother in the Blacktown radiator shop swears by it, its the only stuff he uses!
Author:  kiwiinwgtn [ Tue Mar 16, 2010 7:21 pm ]
Post subject: 
Hi Do these radiators fit ok. cowling etc

Any mods required.

TA Kiwiinwgtn
Author:  mtsmini [ Tue Mar 16, 2010 7:22 pm ]
Post subject:  Radiator
Water + dissolved salts + aeration from pumps radiator etc = corrosion.

Better to buy a green inhibited coolant and avoid all the corrosion problems.
Author:  TheMiniMan [ Tue Mar 16, 2010 11:43 pm ]
Post subject: 
kiwiinwgtn wrote:
Hi Do these radiators fit ok. cowling etc

Any mods required.

TA Kiwiinwgtn


Some tiny nicks/cuts in the corners of the cowls -->cause the rads are more "Square" on the corners of the tanks,,, & you`re away
Author:  Mike Montgomery [ Wed Mar 17, 2010 7:31 am ]
Post subject: 
I got one of these radiators of ebay for $110 and it is absolutely fantastic, my car literally runs at half the temp it used to!
Author:  marks [ Fri Mar 19, 2010 10:01 pm ]
Post subject: 
I had one for my mk1 67 deluxe.

It was too "short" so the tanks sat against the inside cowl from the guard was millimetres from the fan. Cowling wouldn't sit on the radiator correctly and would've needed cuts to fit & new holes drilled.

Took the car to Glen Carpenter to get a new "normal" rad.

But, I did get it fitted (so I could get to Glen's) and it ran very cool. With less coolant. (about 600mL to 1L) than a normal coolant refil would be for me with the older rad. If the inside guard cowl wasn't there, I'd think I would have adjusted it to fit properly.

Cheers,
Mark.
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