Radiator fan front or back ?
Hey guys i just noticed that my radiator fan is in front of the car, is that normal. I noticed it blows really hot air in my engine when the fan is on. My engine seems to be really hot, it runs fine though.


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You have to switch the fan to "push" instead of pull...
Most of the time people swap fans to the outside to simply clean up the look of the bay. As you can see, there should/is plenty of clearence for the fan to sit there.
Most of the time people swap fans to the outside to simply clean up the look of the bay. As you can see, there should/is plenty of clearence for the fan to sit there.
Not really sure if I should leave it or switch sides.
It's working fine, besides blowing hot air on
The engine.
As for keeping an engine cool while blowing hot air on it (I know, it's an odd conundrum). Radiators, as well as coolant, are made with the specific design intention of transferring heat from the coolant into the surrounding air. Radiators and coolant are much better at this than the front of a motor or transmission, so while they can soak up residual heat from the radiator, the radiator is "bleeding off" the heat a lot faster than the motor can suck it back up again.
Thermodynamics gogo!
Some cars were designed to have the fan on front of the radiator and push air towards the engine. Our civics were designed with the fan at the back of the radiator and pull air from the front towards the engine. This is the better design, performance wise but sacrificing space. When your cruising, wind from the front hits the radiator with less obstruction compared to a front mounted fan having the same size of blade and shroud. The fan you got by the way is designed to suck air (based on the curve of blades) and should be mounted after the radiator. You would notice more air movement and less noise. You would have to interchange the + & - wires to make it pull air.
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gs_rbaby
Honda Civic / Del Sol (1992 - 2000)
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Jun 2, 2009 01:55 PM



