Thread: County 4bd1 aluminum radiator

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desert coolers will build you one at a reasonable price. they can use you're old one as a patern.

Originally Posted by wozapinin

desert coolers will build you one at a reasonable price. they can use you're old one as a patern.

I have no personal experience, however...

Have a read here:
aussie desert coolers opinions - Modified Car Forums
On the basis of that they would never get my money.

Agree, I've never used them but thats on the basis of the issues I've heard of alone.

I have used and can recommend Just Alloy Radiators www.alloyradiators.com.au

He'll build to order, there's an online quote request (by size, rows fittings etc.) and he'll and whatever fittings for sensors and what ever you ask for. I've always found it better to call him though. Packs very well for shipping too I'll add.

One of the blokes I drive with has found his expensive UK tuner sourced aluminium radiator fatigue cracked after about two years, and is going back to OEM which had survived well over a decade, behind his 300tdi.
Is there much more risk with aluminium radiators over steel/brass/copper/whatever radiators for fatigue failure due to being that much more rigid?

I don't think it is a question of rigidity - but the problem is that aluminium alloys work harden with vibration - most copper alloys do not, or at least not to the same extent. I would think that this is a major concern with the Isuzu, which is why, when my radiator needed replacing I got the original recored in copper, without seriously considering aluminium.

John

Originally Posted by JDNSW

...which is why, when my radiator needed replacing I got the original recored in copper, without seriously considering aluminium.

x2.

Add to that, copper is MUCH better than aluminium for heat transfer. Brass and solder are worse though.

Originally Posted by isuzurover

x2.

Add to that, copper is MUCH better than aluminium for heat transfer. Brass and solder are worse though.

Even though copper has a much better heat transfer, an aluminium radiator can usually be made smaller for the same heat rejection rate thanks to the brass and solder reducing heat transfer. (usually 2/3 the size)

Dead soft (pure) aluminium also work/age hardens much less than copper.