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</o:shapelayout></xml><![endif]--></head><body lang=EN-AU link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Hello<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Once again I am about to investigate the engine cooling of the Healey Duncan. Nothing highly unusual with it in that it’s a Riley 2.4 litre engine and unpressurised.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Part of the process is to replace the existing Kenlowe electric fan with a more modern unit. The Kenlow sits over an inch from the radiator surface while a modern unit should only be a few millimetres. Of course it was never fitted with an electric fan when new, but it’s simply not coping with the warmer Australian climate.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>I will be doing all sorts of wonderful things like removing the cylinder head to replace the cooling tube between number two and three combustion chamber, refurbishing the radiator, rodding the block etc etc.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>The question that’s on my mind concerns whether to install an electric fan with curved or straight blades. Australian manufacturer Davies Craig says that straight blades are best, but they would say that as that’s what they make.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Anyone undertaken any research as to what’s the most efficient?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Hoo Roo<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Patrick Quinn<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Blue Mountains, Australia<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman","serif"'>Where it’s raining again - wonderful<o:p></o:p></span></p></div></body></html>