Thread: A fan question

Not worth fixing Danny, just go to Mario and get a new one.
I believe they can seize or just slip too much or not engage at all.

Hmm, just be aware that they activate at about 94C based on the air temp through the radiator.
If the radiator is blocked they will work all the time, if the temp of air through the radiator is above that.
How old is the rad? When was the coolant changed last?
Regards Philip A

I'm a bit (lot) mad, I made a unit to measure the rpm of the VC fan, I also added a temp sensor inside the shroud - just so I could be sure the darn thing is working correctly.

RPM= fan RPM
ST= Shroud Temp C
RAT is just RPM/ST ...I plan on changing this to an outside temp sensor.

Radiator is pretty much new. Have a after market temp gauge and the temp behaves normally. Rises to a little over ninety, then the thermostat must open and it the settles to just below or on ninety. Coolant had a minor random spontaneous leak not long ago so coolant aint that old. Also have a snappy new heater hose. What are the benefits of electric fans? Worth looking at?
Cheers Hall

Originally Posted by Hall

What are the benefits of electric fans? Worth looking at?
Cheers Hall

Danny you have an electric fan in front of your rad, it is activated by the sensor on the thermostat housing.
As for fitting fans to replace the viscous coupling, people have experimented with EL falcon fans, but if I recall they are ok for normal driving, but for off roading they are useless and you need a viscous driven fan. Do a search I recall there was a post of why they are not that good.

Originally Posted by Roverlord off road spares

As for fitting fans to replace the viscous coupling, people have experimented with EL falcon fans, but if I recall they are ok for normal driving, but for off roading they are useless and you need a viscous driven fan.

I have read that as well, but it makes no sense. VC fans do nothing at low revs. regardless of the engine temp, because they need revs to make them work. They work at high revs, but by then you are already stressing the engine. IMHO they are the most useless addition to a cooling system ever, unless you count the FIAT electro/clutch fan on the 124.

Electro fans, such as the EF/EL Ford type that Mario mentions, run off a switch set at the right temp, located in the right place, will beat a VC fan every time.

It's a pity they don't also run to a water pump. That would be a perfect world.

Originally Posted by Roverlord off road spares

Danny you have an electric fan in front of your rad, it is activated by the sensor on the thermostat housing.
.

It didn't work on mine, until I turned the 'air' on. Is that normal?

If a D1 is like anRRC then the fans have 2 switches, one for aircon and 1 in the thermostat housing that turns them on at about 104c.
I only ever had them go on from heat once on my RRC..

Regards Philip A