I used a 9 inch repco thermo fan which fit so perfectly I couldn't believe it. I used a tridon termoswitch and a kilkenny thermostat housing (with a provision for a termoswitch. Thread is M16x1.5), the biggest problem I had though was finding a switch that would fit between the thermostat housing and the rocker cover.
Mounting the radiator took a while of fiddling around but it was rather simple in reality. I went to bunnings and got 3 small galvanized L shape brackets and bent them into a shape that would allow me to use the original bold holes on the radiator and still keep it level and sturdy. I used 2 brackets on the firewall side of the radiator and 1 bracket on the grill side. Its as sturdy as anything
I don't know why this thermostat housing had the switch provision on the left hand side as opposed to the right, it seems silly to me as there’s heaps of room on the right side and bugger all o the left.
But anyway that’s the only way they made them so that’s what I had to deal with. The switch I used was an open circuit 2 terminal switch. If I had been able to find a single terminal open circuit switch I would have used that because they are generally smaller (but I could find one with correct temperature range). The one I used on the previous page was a closed circuit switch (hence why I had so much trouble getting it to work as the wiring diagram I had was for an open circuit switch). But it’s all good now
Now the 2 terminal switch I had was a little to big so I had to “make” it fit, to do this I had to bend the terminals sideways in opposite directions and grind a little bit of the rocker cover away. Now its all good.
The whole system works great, completely automatic and I recon better than the mechanical fan, It gives better airflow onto the radiator when driving as the shroud isn’t in the way and when the thermo fan kicks in at the lights it sucks a large amount of through the radiator.
I love it
Here are some photos of my setup
