411 (1969/1970) cooling fans

[Peter.Kent]

No: those two fans blast air through the whole of the underbonnet area. As I say, just stand outside the car when they are running. One car I had, you popped the bonnet to let the heat out. Fans on a proper switch much better. P

[GREG]

And I thought that Bristol's were water cooled !

[john smith]

Thanks Peter
Though the years past, I often wondered about this but always thought this
is the way Bristol Cars meant it to be.
I also wondered about the drain on the battery if the fans ran for even a
short time.
ACCS???
Sorry, not familiar with them.
Little more information please.

[john smith]

Sjp63
Thanks for your suggestion - maybe this is what I did unwittingly, moved to
pos 1 and hesitated.
Next time the engine is hot I will try what you have suggested.
I will follow up Peter Kent's thoughts about bypassing the ignition switch
to the thermostat.
Regards -

[john smith]

Thanks Creg
Yes, it is cooling the radiator.
When standing beside the car with both fans running (engine off), there is
an awful lot of hot air moving out of the engine bay.
This is a good sign that the fans are doing more than just cooling the
radiator.
If the fans are switched 'off' immediately the engine is shutdown then there
must be a large amount of residual hot air building up with no place to go.
It would certainly melt any snow accumulation on the bonnet!!!!

[lansdownplace]

I find the heat normally rises for a little while after the engine is turned off.

[Rubbond]

Peter is quite right - the fans should run on until everything has cooled
down sufficiently - with the ignition switched off - unless you want to sit
in the car for another10 minutes.
Rgds,
Andrew.