Robinhood 1977 dodge 440 heats up on freeway
The longer you run it on the freeway the more it keeps gradually heating up. If you get off the fwy and slow down its ok. Or going down a hill cools it off quick. I have been through the cooling syste...
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Problem with this theory is that removing the viscous clutch and installing the same fan onto a non-clutch hub is that fan will now turn at engine speed and all will be as with the other 1/2 of vehicles on the road. The reason for the viscous clutch has nothing to do with improved cooling. The viscous clutch is installed to allow the fan to free wheel/not require the power to drive, when cooling requirements are low.
Of course, electric fans are another improvment on this same intent.
Of course, electric fans are another improvment on this same intent.
navegator wrote:
If the unit has a viscous fan clutch, and the clutch has gone south the fan will block air from passing through the radiator.
At freeway speeds the fans with fan clutches actually turn backwards in the air stream, and you will see the temp go up if the fan is actually turning with the speed of the engine, the fan is runing to slow for the air coming into the radiator area, and actually creating a wall or air in front of the radiator.
navegator
