Vehicle & Technical > Range Rover

what size fan can i get away with?

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Bowie:
Find an ignition live and relay a fused supply striaght from the battery, don't just connect them up to any +12V wire you find!

Range Rover Blues:
Wire the fans straight onto the battery via a realy.  The relay can be fed with either battery or ignition supply via your thermostat switch.  When you turn off the engine parts of the cooling system get hotter, so you may find the fans come on once you switch off the engine, this is normal and will help prevent the oil from being over-heated in the heads and other such problems.  The V8 runs best at around 65 degrees but for emissions regs the later onces run at 85 or higher.  You don't want the engine getting any hotter than that.

M6GKX:
Many moons ago a friend with a 4203 perkins diesel in his series would have occasional cooling issues whilst winching. What he did was on a corner of the radiator he fitted a smaller faster fan from a Vauxhall Nova. Switching it on gave cooling results almost immediately. I think he kept that installed until it was sold.

Hopefully the two 13" fans you've fitted will do the job ;) The viscous unit on my V8 Defender is a tad old and whilst I've had issues I have found that carefully hosing out the radiator, oil cooler and a/c radiator too. Certainly helped :)

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