Reply to "Pusher Fans"

forestgMember

The original radiators were set up as two pass with the flow across the front and retuning across the rear. The temperature sensors were thus both reading the leaving water temperature and truly staged the fans. The improved radiator changed the tank baffle from vertical to horizontal thus moving water through the bottom half and returning across the upper half. The sensors now read leaving water temp on the top pass and engine temperature on the bottom half. If you are running a 180 stat then the entering water will be at 180 or above regardless of how well the radiator is working so that sensor is essentially useless causing the fan to run almost constantly. I and others control the fans based on the temperature of the water leaving the radiator and this has worked well for me for 20 years. Just my opinion and I know there will be some who feel strongly about other methods.
Forest

9/1/127:59 AM

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