Vehicle & Technical > Discovery

V8 temperature

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gtomo2:
Mine sits just under the half way mark on petrol and just on the half way with lpg. it does go up slightly when i gun it on the motorway but never reaches the 3/4 mark. and still on vicous fan

stevepage3:
Ok

Thanks for the replies,

So any suggestions as to why mine is getting so hot, have cleaned out the Radiator and checked water levels

any ideas,

Steve

thermidorthelobster:
My 101 used to sit on half way, even driving through the desert in 48deg heat weighing 5 tonnes.  I gather the viscous fan's more meaty;  101 owners with Kenlowes have had problems with keeping the heat down.

Staffy:
There are many reasons why a V8 will run warm.

But...

Re-reading your first post. If you have removed the viscous fan and refitted it and you do not have the noise then I think you need to check it is working.

When it is cold ie.. in the morning open the bonnet and spin the fan, it should turn easily. Run the engine until warm turn it off and then turn it again there should be considerable resistance now as the viscous coupling should have engaged. At least that's the theory.

If there is no / little difference then either it hasn't been put back right. Or it is borked :( and is probably the reason for the high temps.

If there is more resistance then we can rule out the fan and list other things to check / try!

HTH
Phil

Range Rover Blues:
Actually when you first start the car the fan should be a bit stiff, all the fluid runs out into the vanes and locks the hub up.  

As it spins the oil is firced into the reservoir and the fan then idles.  When it gets warm the valve opens and allows the fluid back into the vanes, locking the fan up.

So you should hear it at startup and you should hear it when things get hot. All other times I would expect it to sit halfway, that's what your thermostat is for!

Having had problems with the LSE overheating I spoke to Kenlowe.  They advised that as I tow 2 tonnes regulary that I shoulkd NOT remove the viscous in preferance to twin electrics as they DON'T move anywhere near as much air.

I have replaced the rad last night, the viscous (though if anything the new one seems to slip even more), fitted a Kenlowe auto box cooler, hosed out the airconn rad and added some water wetter, just for good measure.

I'll let you know how I get on.

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