Hallow! I've got problems with my visco in B230F engione in my Volvo 740 - 1988. I want to change visco-ventylator to electorventylator. I know that in Volvo 940 with B230F engine,sometimes hasn't visco, but electorvent. I'm looking same picutres with B230F and electorvent. The Visco is loud,and some power of engine is loose, because of Visco. I think, that electro-vent is better idea, then standart visco clutch.