Forum Discussion
MEXICOWANDERER
May 09, 2021Explorer
I had to REMOVE the fan on a Dodge then attempt to drive it at 50 mph right away to isolate stuff. The 440L3 immediately dropped from 260F to 150F.
Just for note:
Behind one of those spinning giant air turbine windmills a 40 mph wind calms to the point where a flicked butane cigarette lighter burns with a steady flame. This is just how much "spinning blades" can block airflow.
I have a piece of snot 25-year-old low-miles K car. It was prone to drive hot. I replaced the worn out electric fan motor after 80,000 miles with an OEM used one. Then after a year I got nervous and replaced the one with a 4-seasons electric motor that was noticeably heavier. The man who did the work and I agreed that the new motor spun the fan noticeably faster because the breeze underhood seemed to be stronger. It was a subtle increase though.
Driving the vehicle the actual temperature difference is dramatic. Chrysler decided that a ONE ROW radiator was enough with no possible substitutions. So the fan is VITAL. Only driving 35-50 mph on a mild or cooler day will keep the engine from boiling over without a fan. That all so subtle airflow increase decreased engine coolant temperature by twenty to thirty degrees on a warm day. Since I had purchased the car when it had 18,000 miles on the odometer, and it had the overheating tendency then, it eliminates the idea of age or maintenance influencing things. By the way HOT means boiling over with engine knocking noises when shut off.
The Dodge owner became enraged at the hydraulic fan malfunction. So he eliminated it. He later reported no decrease in fuel mileage. What an expensive odyssey.
Quicksilver has a hydraulic driven Horton 7 bladed fan, a radiator 30% larger in area. Twice the tube count per inch, half again as many fins per inch and a 3 row tube to 5 rows tubes radiator. It survived a 12-hour day flat towing a loaded 1 ton pickup truck in temperatures to 122F. I didn't fare nearly as well. I had traded an LA radiator shop for repairing a Cummins Onan 700 Kw generator.
Just for note:
Behind one of those spinning giant air turbine windmills a 40 mph wind calms to the point where a flicked butane cigarette lighter burns with a steady flame. This is just how much "spinning blades" can block airflow.
I have a piece of snot 25-year-old low-miles K car. It was prone to drive hot. I replaced the worn out electric fan motor after 80,000 miles with an OEM used one. Then after a year I got nervous and replaced the one with a 4-seasons electric motor that was noticeably heavier. The man who did the work and I agreed that the new motor spun the fan noticeably faster because the breeze underhood seemed to be stronger. It was a subtle increase though.
Driving the vehicle the actual temperature difference is dramatic. Chrysler decided that a ONE ROW radiator was enough with no possible substitutions. So the fan is VITAL. Only driving 35-50 mph on a mild or cooler day will keep the engine from boiling over without a fan. That all so subtle airflow increase decreased engine coolant temperature by twenty to thirty degrees on a warm day. Since I had purchased the car when it had 18,000 miles on the odometer, and it had the overheating tendency then, it eliminates the idea of age or maintenance influencing things. By the way HOT means boiling over with engine knocking noises when shut off.
The Dodge owner became enraged at the hydraulic fan malfunction. So he eliminated it. He later reported no decrease in fuel mileage. What an expensive odyssey.
Quicksilver has a hydraulic driven Horton 7 bladed fan, a radiator 30% larger in area. Twice the tube count per inch, half again as many fins per inch and a 3 row tube to 5 rows tubes radiator. It survived a 12-hour day flat towing a loaded 1 ton pickup truck in temperatures to 122F. I didn't fare nearly as well. I had traded an LA radiator shop for repairing a Cummins Onan 700 Kw generator.
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