Reply With QuoteHave the same fans and shroud (genuine fake $200 new) in a RRC with stock 3.5 rad cooling a 350 Chev. Best mod I ever did.
cheers, DL
Master
When I bought my County the Isuzu engine fan was about 150mm away from the fan shroud and 75mm above the top edge. I removed the viscous coupling, fan and shroud, threw them under the work bench, and fitted a set of thermo fans off an EF/EL Falcon. The plastic shroud around these fans has to be trimmed a bit to clear radiator outlets etc. I also put a thermal electrical switch in the thermostat housing, from a Hilux. The switch turns the fans on at 85C and off at 80C. I can manually turn the fans on for steep climbs/hard work and turn them off for deep water. The temp guage doesnt get above 85C, indicated. I have also fitted AU twin fans to several Rangies with the thermal switch in 1 of the cyl block drain holes. Of course the Rangie has a different switch, but wired up the same way, with the radiator cleaned and the correct non glycol coolant none of the vehicles overheat in any condition we have thrown at them.
ForumSage
Have the same fans and shroud (genuine fake $200 new) in a RRC with stock 3.5 rad cooling a 350 Chev. Best mod I ever did.
cheers, DL
ForumSage
I'm running two toyota corona fans side by side. They don't turn on much.
The heat switch I'm running looks like a honda part and threaded straight into the thermostat housing.
ChatterBox
Yep work fine untill you submerge them in silty or muddy water and the motors sieze very quickly. Hence we have now gone back to the original fan. probably wont worry you if you are just touring etc.
Justin
Master
Yes, I agree with Justin for once, thermo's work beautifully until you have an electrical issue. Think Central Australia, or The Cape, or any slow hot work, and throw in a trailer. Stick to the EDF, it may be noisy, not super efficient, and potentially susceptable to damage ( I always leave the fan turnable by hand, for water crossings ). But it is simple, does the job with minimal fuss and is ever reliable, like you know what.
Master
.....be that as it may, if you guys are talking Rangies exclusively, you might need them, but who am I to know.
ForumSage
I don't like being submerged in muddy water either, so that's fine.Originally Posted by DRanged
Yep work fine untill you submerge them in silty or muddy water and the motors sieze very quickly. Hence we have now gone back to the original fan
Justin
*edit*
I should add that I've never had a radiator fan die on me. One of the front mounted AC pushed fans on my rangie stopped turning about 10 years ago, somehow it was full of dead insects and stones, I turned it by hand, they flicked out and it ran fine again. They've been submerged several times.
ChatterBox
. Have I missed something in the past
Justin
Master
I have also had electrical fans die from being submerged the trick is to turn them off before submerging them, hence the manual override. They are fine if you turn them off before deep water, but dont forget to turn them on again!
Master
I have trailed thermos and viscous fans in hot heavy work and I have found the thermos move more air at lower engine speeds than the original fan. I have used the thermos when towing around 3 tonne on the road during summer, and crawling up steep climbs in the high country also in the summer.
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