Thread: Td5 Radiator for an Isuzu?

Originally Posted by 87County

There is a nice 120 for sale in the markets section ( http://www.aulro.com/afvb/vehicles-s...me-camper.html )and one of its listed features is that it has a Td5 radiator, which I guess was fitted for a good reason.


My questions are:

1. is the Td5 radiator a replacement alternative that has an advantage over the original ?

2. are there pipe relocations to undertake to use the Td5 radiator with an Isuzu 4BD1 ?

The TD5 is a full width rad unlike the tdi. A Td5 has similar power output to a 4BD1T, so both rads should see similar heat loads.

The TD5 seems ro be an alloy rad with plastic tanks (as are all new rads). I am not sure I would use one on an all-iron engine.

Can't answer the outlet/hose questions. If the td5 rad has plastic tanks you would be modding the hoses not the outlets.

Originally Posted by isuzurover

The TD5 is a full width rad unlike the tdi. A Td5 has similar power output to a 4BD1T, so both rads should see similar heat loads.

The TD5 seems ro be an alloy rad with plastic tanks (as are all new rads). I am not sure I would use one on an all-iron engine.

Can't answer the outlet/hose questions. If the td5 rad has plastic tanks you would be modding the hoses not the outlets.

Yes, thanks - I have read further since posting and they do appear to have plastic tanks & aluminium core so there may not be any advantage other than fit and even then it seems some modification is required.

I was also wondering if the modern aluminium cores have more efficient heat exchanging than the older tube &fin type.

A F150 crossflow core size is 695 x495 mm wich leaves about 40mm either side to fabricate tanks. I have just ordered one in four row with straight fins and dimpled tubes not cheap but neither is a cooked engine

i used a td5 rad in this vehicle and a td5 EU3 intercooler for simplicity and efficiency. it cools well, even with a d1 a/c condenser in front of it all. the plumbing was fantastically straightforward and the whole assembly bolts in with the td5 defender top bracketry. the only mod that req a welder etc was adding the lower perches for the rad.

even the shroud etc fits and looks factory.

ask rob for some photos.

jc

Thanks Justin, I can understand that the fit would be right and can see that the pipes would not be far wrong. Modern radiators are about half the price as well.

Are the cores more efficient in exchanging heat as well?

Certainly seems efficient enough. His whole rig weighs around 3 tons and will climb some BIG hills in top gear and still hover around 92 degrees.

JC

Originally Posted by 87County

Thanks Justin, I can understand that the fit would be right and can see that the pipes would not be far wrong. Modern radiators are about half the price as well.

Are the cores more efficient in exchanging heat as well?

Copper is MUCH better than aluminium at heat transfer. However, copper rads are actually a mix of copper, brass and solder, which evens things up a bit. The limiting factor is usually the air anyway.

Some of the other Isuzu radiator threads I read suggested that anything other than copper based ones run the risk of breaking due to the harsh vibrations of the isuzu.

Comments here seem to indicate this isn't a problem? I will likely be up for a new radiator in the future as well and a TD5 radiator is MUCH cheaper than any of the County Isuzu or V8 ones I've seen.... So a great option financially if it's fit for purpose.