Defender TD5 radiator

[Graz]

Has anyone fitted a high capacity (tropical?) radiator to their TD5 Defender, assuming they are available?
My 130 was overheating coming up the Brookton Highway in the last WA heat wave.
My GCM would have been approx 6 tonne with the van, tinny & outboard, trail bike, folding boat trailer and camping gear/tools.
Sitting on about 90 ks I had to have the heater on full to keep the nanacom reading around 97 deg. Less than ideal for the comfort zone.
The current radiator is only approx 12 months old and the viscous fan is near new as well.
Thanks

Graham

[CraigE]

Graz,
Do you have thermo fans? I know PWR make heavy duty radiators, but not sure how hood they are. Have heard various reports from good to bad with Desert Coolers.

[Graz]

Hi Craig

Long time no see, hope all of your mob are ok.
No on the elec fans, got the standard viscous.
Don't hear the viscous fan cutting in like you can hear on a lot of vehicles which suggests that the radiator is not extracting sufficient heat to lock it up.
Considering the weight I drag and the fact it is chipped and on gas supports the need for a higher capacity rad.

Last I read you got yourself a camper, suggest we, including LandyAndy meet up for a camp somewhere. I'm good anytime being in early retirement unless I'm grinding away in the old Mack carting something!

All the best

Graham

[Tombie]

The statement that you cant hear the viscous leads me to think its a dud unit.

Stock radiators can handle some seriously tweaked TD5s


How are your EGTs?

[Graz]

The statement that you cant hear the viscous leads me to think its a dud unit.

Stock radiators can handle some seriously tweaked TD5s


How are your EGTs?

Haven't fitted a Pyro as yet, I'm in the throws of trying to make an exhaust manifold out of steam pipe bends. Up to now only made the jig. Was going to make an adapter in the manifold for a pre turbo probe.
I guess the EGT's will be up there as the chip over fuels initially (great belch of black smoke) although the gas I believe cools things a little, when its working that is. It's a non flashable ECU so I guess I'm stuck with it.

The water temps still get up in a head wind where the viscous fan would probably have less affect.

[Tombie]

Save your heart ache on the manifold, even steam pipe fails on these engines...

If you want a better manifold, best pay for the performance cast versions.

Any welded manifold people have made has failed on a Td5. Even the performance shops in the UK went to a casting to prevent failure.

[Graz]

Google searches have not found any off the shelf heavy duty radiator so my thoughts have turned to the engine oil system as another way of dissipating engine heat.
Is it possible to tap into the engine oil system to run it thru an oil cooler.
I believe the two solid oil lines already going to the radiator are from the gearbox.

I have been following the cometary for some time now on the TD5 exhaust manifold and the attempts to get around the problem. Everything that Tombie has stated has merit though perhaps a lot of the failures of the steel tubing manifolds may be due to the weight of the turbo, exhaust riser and other parafinalia hanging off it unsupported.
Perhaps a substantial bracket down to the side of the engine block may prevent these failures.
Appreciate any opinions.

Graz