Fan and Ignition

ttedj · Post by **ttedj** » Fri Jul 02, 2010 21:23

Hi all,
As the weather continues to be a little hot, should the fans stay on when the ignition is switched off as per a "modern" car? (assuming the temperature is in the correct range of course).
Mine doesn't and was just wondering if it should.
thanks

ted

amarshall · Post by **amarshall** » Fri Jul 02, 2010 21:56

No - there's neither a timer nor a bypass - but I bet you could wire one in via the purge pump sensor if you wanted to.

chrisw2811 · Post by **chrisw2811** » Fri Jul 02, 2010 22:56

I don't understand why fans on modern engines stay on after switch off. Is the water pump still running, or the oil pump? What is being cooled? I assume it's just the temperature sender.

amarshall · Post by **amarshall** » Fri Jul 02, 2010 22:58

There'll be a Clan man along in a minute to explain how electric water pumps make things so much better....

Lotus-e-Clan · Post by **Lotus-e-Clan** » Sat Jul 03, 2010 01:51

amarshall wrote:There'll be a Clan man along in a minute to explain how electric water pumps make things so much better....

Strange but true...

Yep, no point having the fans on after switch off if the water pump isn't running.

So if you haven't got an EWP then tough!

ttedj · Post by **ttedj** » Sat Jul 03, 2010 20:32

Thinking about it, it is obvious as the water isn't being pumped around. Why modern cars do is a mystery then...
Thanks

Ted

Lotus-e-Clan · Post by **Lotus-e-Clan** » Sat Jul 03, 2010 20:50

More of them have full EWPs or little 1 amp booster pumps for this purpose especially those with turbos fitted. (eg like audis and VWs).

As well as a Davies Craig 80/ l/min EWP I use a 13 l/min VAG pump to boost the the heater flow on the Clan.

The Lotus Grand Tourers

Fan and Ignition

Fan and Ignition

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Re: Fan and Ignition

Re: Fan and Ignition

Re: Fan and Ignition

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Re: Fan and Ignition