fitting an electric fan to replace viscous

[elty001]

Originally Posted by micktheshed

Just received new switch assy. from Kenlow (give them some credit for rapid 24 hr. supply). This one is of the older type that I had fitted to a Viva about 30 years ago. I only hope the new one is as reliable as that was.
Instructions state sensor is to be fitted into the top hose. I have to assume they know what they're on about.

Still intend re-fitting viscous fan for next years 'summer' towing use. After 2 failiers I have lost faith in sensor operated switches.

Will also continue to raise bonnet after a long run (been doing it too long to stop now!) if only because I enjoy the puzzled looks on peoples' faces LOL.

The unit I bought also said to fit the sensor into the top radiator hose .
As for having your bonnet up just tell people you don't want to feel left out as all the landrover owners seem to do it all the time

[solarman216]

Originally Posted by elty001

The unit I bought also said to fit the sensor into the top radiator hose .

Absolute rubbish, what on earth are these people on about, the top hose is regulated at thermostat temperature (say 88 C) so a stat with a hysteresis of 5 deg C should cut in at 93 C but by the time 93 is seen at the top hose the bottom hose will be at around 80 C cos this will be the reason for the 93 at the top, so if the fans are a little delayed a few seconds off hard driving will push it over the limits, total rubbish, now if you look at a properly operating viscous fan as the rad heats up lower down the hotter air drawn in by the idling fan kicks the fan into full speed, so lower down rad temp is the trigger, I rest my case, Rick

[elty001]

The unit I had was adjustable so you could set it to come in at what ever temp You wanted.
I set mine to come on went temp gauge read halfway.

[micktheshed]

Originally Posted by elty001

The unit I bought also said to fit the sensor into the top radiator hose .
As for having your bonnet up just tell people you don't want to feel left out as all the landrover owners seem to do it all the time

Kenlow have always (1st one fitted 1975!) specified top hose. What do I know to tell them different?

You've got a point there! Daughters Disco always seems to have something (expensive) wrong with it.