fan shroud 39 hey guys does anyone know of someone that makes a shroud kit that will fit a 6 blade crank driven fan
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Re: fan shroud 39 I bought a fiberglass shroud from Speedway that fit the radiator nicely. Had to cut the hole for the fan. Really helped the cooling in traffic at slow speeds.
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Re: fan shroud 39 2 Attachment(s)
Pictures show the partial shroud I tried from Speedway. It zip-ties through the Champion aluminum radiator core. It leaves a big gap at the bottom. I added a spacer to get the fan blades just inside the shroud and about 1" from the core. I hoped it would help cooling at idle, but the improvement was minimal. Took about ten minutes at idle to overheat (210+) on a hot day, versus maybe five minutes without the shroud. A added a baffle and foam to block air flow around, over or under the radiator to improve cooling at interstate speeds (60+) on a hot day. Also minimal improvement. Biggest disappointment was adding Dennis Carpenter water pumps, designed to improve flow at idle, also made minimal improvement.
What fixed the problem was squeezing in a much bigger brass/copper truck radiator. Lesson: If you add 20% displacement and high compression, you better add 20% radiator area. |
Re: fan shroud 39 At Flat Jacks suggestion I purchased a shroud from Speedway for my '41 1/2 ton, crank mounted fan. I installed the shroud up side down which nicely closed things up. I'm
running a genuine Ford radiator with no issues. Prior to the shroud it boiled in traffic. Charlie ny |
Re: fan shroud 39 Quote:
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Re: fan shroud 39 yeh now the drama trouble is a fan is to far from radiator to work at idle and about 1/3 of the fan sweep is actually below the core on a 39
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