Many older vehicles use a belt-driven mechanical fan that pulls air through the radiator to lower the temperature of the engine coolant. While that system often works pretty well, a lot of folks may occasionally encounter a driving environment where the mechanical fan can’t keep-up with the cooling demands of the engine, and it begins to overheat.
That’s especially true in low-speed or idle situations where the mechanical fan isn’t spinning very fast and you don’t have the added benefit of airflow from a moving vehicle.
…But if you’ve ever nervously watched your temp gauge steadily rise as you meander down a parade route in your classic car, you probably already know all this.
The good news is, in a lot of scenarios, adding a secondary electric fan can be an easy solution. And the fine folks at Flex-A-Lite will explain how to do it.
Placed in front of the radiator and configured to run in reverse, a supplemental “pusher” fan can move a consistent amount of air through your radiator regardless of your vehicle or mechanical fan’s speed. Better still, the supplemental fan can be wired to run on a thermostat or manually switched on so it’s ready whenever you need it.
Give this video from Flex-A-Lite a watch and you’ll get some good auxiliary pusher fan installation tips—and you might finally be able to cure your low-speed overheating issue without seriously modifying your cooling system too!
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