I would assume the unit would be best fitted with the fins vertical (if it is face on to the direction of movement), so that it would cool better with convection, when the car is stationary and better airflow when moving. However if it is fitted at right angles to the direction of movement, it might be better mounted with the fins horizontal. I don't have the fan kit on my engine, as I am very rarely in heavy traffic, where the car lives in France. Before the chassis broke, I had never had it cut onto one cylinder mode from excess heat in traffic. Once I get the car back, I will keep an eye on how hot the regulator gets.
I did not have the car last summer, due to the chassis change, when it was extremely hot. The ceramic tiled floor in a passageway in my house exploded, as it could not take the thermal expansion. When the house was built, in the early 1970's, nobody thought of putting spaced lines of expansion mastic in tiled floors, in place of regular grouting, to accommodate thermal expansion. I did think at the time: "I wonder how the Morgan would have coped with these temperatures without a cooling fan".
Wilson
Last edited by WilsonLaidlaw; 19/02/18 08:42 AM.
