Intro & Fan Help

If I understand right, your fan is mounted on the front side of your radiator? If that is true then the direction is right. You want the airflow going towards the engine no matter what side the the fan is on. However, I personally believe that you get better cooling with the fan on the engine side sucking air thru the radiator especially when moving. It also helps to have a shroud if you have room for one. You might check your thermostat (maybe sticking or in backwards) and your timing and fuel mixture. These will all affect temp.

Like tos said, you want the fan to push warm air towards engine direction. Is it running warm at idle and slow speeds? Or just at higher speeds. Two basic tests, on warm vehicle and feel with your hand along radiator, engine off obviously. Make sure you have no cold spots. Second I'd pull thermostat make sure copper pellet can is facing motor. Sounds stupid but some don't know. Put it in a pot of boiling water with a temp gauge, make sure the wife's not home. See if it opens at 180 or whatever temp it is. If you have aluminum heads and intake, make sure you have appropriate ground straps to motor. My friend didn't on his small block Chevy, when he pulled his intake because of a leak, the passages for coolant were blocked from electrolysis. Aluminum reacting to cast iron. Keep us posted.


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