On 27/02/2020 22:27, Steve Walker wrote:
On 27/02/2020 15:40, Dave Plowman (News) wrote:
In article
,
Â*Â*Â* Tim+ wrote:
I've just done a quick Ebay search on viscous couple engine driven
fans, and the very first one came up as being for a car made up to 8
years ago.

Over to you to prove no current car has one.


No, fair enough. It€˜s just a long time since I€˜ve seen one. Most of
my cars
over the last 25 years or so have been transverse engine, FWD.Â* It is
possible the my Jag XF had a viscous coupled fan, but I never looked.
;-)

I'd certainly agree electric is likely the most common these days. Not so
sure about larger traditional layout RWD from the likes of Jag, BMW, Merc
etc. I'd guess the costs of a powerful electric fan and the alternator
needed to drive it have come down, relatively.

The alternators are far bigger than anything needed for an electric fan
- on my previous car, it could drive a 1kW electric heater to speed up
heating of the car, as the highly efficient diesel was too slow to warm
up in the winter!


That's very strange, My freelander - now gone - had an oil burning
heater that used to come on in very cold weather to get the engine up to
temp. It took around 5 miles even with that, but the XF Diesel I have
now seems to have something much smarter going on - the engine is warm
in less that 2 miles judging by the heater. (It doesn't have a
temperature gauge at all).
Electronic thermostat so the water cycles round the block only when cold?

No, it appears it does have a thermostat! Must have a smaller water
jacket and a high flow pump then!


SteveW


--
Those who want slavery should have the grace to name it by its proper
name. They must face the full meaning of that which they are advocating
or condoning; the full, exact, specific meaning of collectivism, of its
logical implications, of the principles upon which it is based, and of
the ultimate consequences to which these principles will lead. They must
face it, then decide whether this is what they want or not.

Ayn Rand.