The Ford Barn

J Witt · 07-20-2018, 01:55 PM

Some have responded (thanks very much) to my radiator cap question, but here are some more.

Does anyone know of a smaller than stock diameter pulley for the generator. This is the pulley that has the fan bolted to it. My objective here is to increase the rpm of the generator shaft and fan with the objective of pulling more air through the radiator, especially at low speeds--for parades for instance.

Here's the backstory: When I got the car it had a stock fan and worn fan belt. The fan had a tendency to hit the radiator header tank up in the recess in the header tank. I eventually cut the diameter of the fan down some to give a little more adjustment on the belt tension. Of course, this reduced the amount of air through the rad and made hot running more of a problem.

Right now I have a good fitting belt, but would like to tighten it a little, however the fan hits the tank if the generator is not almost all the way down to the limit of the adjustment slot.

I think a stock diameter fan is out of the question, so would like to spin the existing one faster. I also have looked at raising the radiator a little, but it can't be very much and would requires shimming the rubber mounts at the bottom (not hard to do).

Comments, anyone? You guys are full of good ideas.

John

07-20-2018, 01:55 PM	#1
J Witt Senior Member Join Date: Mar 2015 Location: Acworth GA Posts: 534	More radiator questions Some have responded (thanks very much) to my radiator cap question, but here are some more. Does anyone know of a smaller than stock diameter pulley for the generator. This is the pulley that has the fan bolted to it. My objective here is to increase the rpm of the generator shaft and fan with the objective of pulling more air through the radiator, especially at low speeds--for parades for instance. Here's the backstory: When I got the car it had a stock fan and worn fan belt. The fan had a tendency to hit the radiator header tank up in the recess in the header tank. I eventually cut the diameter of the fan down some to give a little more adjustment on the belt tension. Of course, this reduced the amount of air through the rad and made hot running more of a problem. Right now I have a good fitting belt, but would like to tighten it a little, however the fan hits the tank if the generator is not almost all the way down to the limit of the adjustment slot. I think a stock diameter fan is out of the question, so would like to spin the existing one faster. I also have looked at raising the radiator a little, but it can't be very much and would requires shimming the rubber mounts at the bottom (not hard to do). Comments, anyone? You guys are full of good ideas. John __________________ Houston, Tranquility base here. The Eagle has landed.