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[tunnie]

On the subject of fans, your viscous set up probably stopped working years ago! However, if your car has/had air conditioning, then there should be an electric fan already on board. This is controled by a 'waxstat' which is screwed into the radiator about 2/3rds of the way down the tank on the near/passenger side. You could do one of two things. Purchase a lower temperature waxstat from Vx and and use that to trigger the fan at a cooler temperature, (I think you can get them to start at about 90 degrees,), or bridge the wires and run it permanently or rig it up through a switch to use manually when required.

Good luck!!

It wasn't on the one we had, the fan was driven by a pressure switch in the aircon line where if the pressure got to high it turned the fan on (which cooled the refrigerant more and hence reduced the pressure).

When ours 'cooked' it was the first thing I looked for before wiring the aircon fan directly to the battery (via a fuse!)

I doubt i could do that on the fly like you....

[Big Rod]

It wasn't on the one we had, the fan was driven by a pressure switch in the aircon line where if the pressure got to high it turned the fan on (which cooled the refrigerant more and hence reduced the pressure).

When ours 'cooked' it was the first thing I looked for before wiring the aircon fan directly to the battery (via a fuse!)

New one on me Mark!!  :-?

The bottom line is though, that if you've already got the A/C fan there, then you don't have to fit another one.

[Admin]

Rod, I can confirm the air con fans certainly do the job of cooling the radiator properly if the air con is not in use.  

However, with the condensor in the way, the flow of air over the radiator will be noticably compromised, even more so in the heat of continental Europe.

The addition of electric fan(s) that are thermostatically controlled can only be of benefit I say.