I notice there are more alloy radiators cropping up on Ebay. I notice on this one:

Alloy Radiators on Ebay

That it has the smaller type of radiator cap, from a modern car. As far as I knew, these caps are not available to suit a car fitted with no overflow tank (ie a Mini). All the caps of that size I have seen available, have been the type to suit a car with a non-pressurised overflow tank. Does anybody know if the cap will actually work?

I will not pass judgement on the asking price.

Don't know about the cap, but, the radiators sure do look nice.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T

Mini spares in Sydney have alloy radiators, i belive they take a normal mini sized cap.


Doogie

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I won Hay once, here's the pic to prove it..


Hay, it's not about the car, it's not about the venue, it's about the people that come here. Peter Dwyer, Mayor of Hay NSW.

They look nice - very bling bling

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina

I can't imagine why the radiator cap would be any problem, as long as it is the right lifting pressure.

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

I'm with you Anto - looks like a plain cap with no springy bit inside

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did I tell you that I won a trophy?

I think you'll the cap is the type which is designed to allow the coolant to evacuate above a certain pressure, but once the pressure goes down it sucks the coolant back in - ala non pressurised overflow tank. With a Mini it is only designed to evacuate coolant above a certain pressure, but not draw it back in.

That's not really a big deal. Most new cars use the draw back system and many, many different non-pressurised expansion tanskc an be source cheap from your local generic car wrecker.

Ideally, a blank off cap would be the way to go, and then use a pressurised expansive tank. Preferably alloy too for extra bling, or polished brass like my car.

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1964 Morris 850, 1330 Supercharged - 81.8hp atws.
1975 Leyland Mini S 1100S powered - Nice and reliable.
1977 Leyland Mini LS - Project LS-T

There is a standard cap you can get that fits Mini rads and allows this, just watch the length as there are 2 (Oz and UK).

For UK rads, and non pressurised overflow tank, use a `CPC’ 543-13, made in Oz. I ran one on a super 2 core rad.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

what pressure should a mini radiator cap be??

For Australian Cooper S running a ST 2 core radiator from England??

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Yes but the 543-13 is a large diameter cap. My point is, this alloy radiator has the small diameter cap, which as far as I know is only available as either a blanking cap (for pressurised overflow tank) or for non-pressurised overflow tanks. I don't think it is available for use of cars with no overflow tank.

I have alloy radiators in stock here but they don`t cost anywhere near that much

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

Can someone explain if there would be a need for a different cap in that case. The end result would simply be it lets air back into the top when the tank has overflowed, isn't that what happens anyway ??

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

Just run a cap for an overflow tank, the radiator will not know the difference.

miniman how much are your alloy rads. could you post a pic of what they look like.

cheers dan

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Cheers Dan

FIRST COMES THE MONEY, THEN COMES THE POWER, THEN COMES THE WOMEN.!!