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06-27-2019, 08:08 PM | #1 |
Member
Join Date: Feb 2015
Location: North Texas
Posts: 39
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cooling fan question
I want to replace the engine driven fan on my 41 with a shroud and electric fan. I can buy an 18" fan and make a shroud but with all the complete units out there for modern cars does anyone have a suggestion on what will fit
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06-28-2019, 03:52 AM | #2 | |
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Join Date: Feb 2011
Posts: 794
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Re: cooling fan question
Quote:
And perhaps adapt a more efficient fan blade (multi-blade/flex) |
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06-28-2019, 03:34 PM | #3 |
Senior Member
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Re: cooling fan question
Plus two with 34PKUP .The electric fans have there own shroud built in ,a fabricated shroud is best used on the original fan I think Walker Radiator has a plastic one ,a electric fan blocks air flow for normal driving you could run both for best results ,Ted
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06-29-2019, 04:14 PM | #4 |
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Join Date: Jul 2014
Location: Iowa
Posts: 1,634
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Re: cooling fan question
Be aware that most electric fans draw more current than the system of old vehicles can provide. It requires a thermostatic switch and relay, as well. They come in "pusher" and "puller" types, so choosing the right one is important to match the application and position.
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06-29-2019, 06:32 PM | #5 |
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Join Date: Sep 2016
Location: sydney australia
Posts: 1,033
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Re: cooling fan question
and just to confuse the issue dont forget the flow rate [cfm]
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06-29-2019, 07:26 PM | #6 |
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Join Date: Jun 2013
Location: Marana Arizona
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Re: cooling fan question
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06-29-2019, 10:42 PM | #7 |
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Join Date: Nov 2018
Posts: 60
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Re: cooling fan question
I found a heavy gauge baking pan (cookie sheet) which fits my '50 Merc radiator perfectly. Bought a 16in Spal puller S blade fan. Used a Malco HC-2 hole cutter tool. Pan cost $12, the hole cutter was $82 from Amazon and fan was $155. I've not heard of anyone using 18in fan but whatever. Oh yes I got some aluminum angle for $15 to fasten pan/shroud to the radiator/frame.
Checkout the hole cutter tool-it's cool and there are you-tubes demonstrating it's use. |
07-01-2019, 12:56 PM | #8 |
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Join Date: Jun 2014
Location: Williamsburg, VA
Posts: 1,627
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Re: cooling fan question
I put a Speedway shroud around the stock fan on my '41. It covered the top and sides but not the bottom. Made no perceptible difference in cooling at idle or at speed.
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