Stew it must be a tight fit with the C3 transmission. Is your radiator in front or on top of the engine? Im running a International truck radiator with the biggest electric fan I could find and a bypass of to a smaller rad and oil cooler on a separate fan at the rear. After alot of tweeking the coolings good. Hans I like the radiator fan set up you have and especially the gear linkages, that must have been a pain to design and build. Cheers David.
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