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09-23-2020, 08:58 AM | #1 |
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41 mostly stock 6v posted ground - adding a fan
Decided to add a electric fan - not critical but want to improve cooling a bit any suggestions for a product is appreciated. Woukd like it to be on the small side and not catch everyone's eyes. I'll put it on a switch and only use it when necessary
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09-23-2020, 09:21 AM | #2 |
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Re: 41 mostly stock 6v posted ground - adding a fan
Someone may have a source for an elec fan that can do the job on 6 volts but at the
urging of Flatjack Meyer I installed a shroud on my '41 p'up ,when it was still 6v, instead of an elec fan. Your '41 vehicle no doubt still has the crank mounted fan , as does my p'up,...it's in a poor location. The Walker shroud did the trick...it is certainly my recommendation vs a fan. Charlie ny |
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09-23-2020, 09:36 AM | #3 |
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Re: 41 mostly stock 6v posted ground - adding a fan
I'm game to try a shroud I'll look on the net to see what walker offers or call them
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09-23-2020, 03:57 PM | #4 |
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Re: 41 mostly stock 6v posted ground - adding a fan
Most electric fans draw more current than a generator can provide. Often cooling problems have less to do with the fan, and more likely to the radiator condition. Limed interior and fins that have broken contact with the tubes are at fault. Most old Ford systems are more than adequate when in good condition. My '47 made it through the hottest summer on record without any problems. When I bought it years ago it wouldn't make it around the block before pegging the temp gauge. A new radiator fixed it, and 25 years later, all is well.
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09-23-2020, 04:45 PM | #5 |
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Re: 41 mostly stock 6v posted ground - adding a fan
Veeder
Does your 41 have all the sheet metal parts still in place? Makes a difference. Bruce
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09-23-2020, 04:59 PM | #6 |
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Re: 41 mostly stock 6v posted ground - adding a fan
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As stated sheet metal in the correct places makes a huge difference in air flow. |
09-23-2020, 05:23 PM | #7 |
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Re: 41 mostly stock 6v posted ground - adding a fan
Assuming you are getting hot only at slow speeds, Charlie’s recommendation of a shroud makes a lot of sense. The original design has the fan pulling air through only about half the radiator’s area. A shroud could make better use of the tall radiator. But not sure that would be any help to the coil.
Last edited by JayChicago; 09-23-2020 at 05:30 PM. |
09-23-2020, 08:29 PM | #8 | |
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Re: 41 mostly stock 6v posted ground - adding a fan
Quote:
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09-23-2020, 08:48 PM | #9 |
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Re: 41 mostly stock 6v posted ground - adding a fan
I drive a '41 Merc with a nice 260" flathead. The radiator is in good shape and all tins are in place. This summer in 95-103 degree (F) heat the car ran the exact same temps (185-195) as it did when I added a "pusher" fan in front of the radiator last summer. I added that fan because I'd read that flatheads like to run hot especially in traffic and I wanted to prevent problems before they started.
Well, found out the car didn't need the pusher fan so it's now back in storage. It wasn't a wimpy one either...OEM from a Dodge sedan and it moved a lot of air. I'd provided a solution for a problem that didn't exist. Lesson learned. Terry
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"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" 302 |
09-24-2020, 11:39 AM | #10 |
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Re: 41 mostly stock 6v posted ground - adding a fan
A lot of people have the mistaken believe that an engine should run a temp 160 degrees or lower. Prior to the advent of lower emissions on vehicles, the recommended temp's by most manufactures was 180 degrees, now it is close to 200. Most original equipment temp gauges show 'normal' in lieu of an actual temp.
A good coolant, not water, in a well maintained system with a pressure cap will not boil until the temp get above 230, water boils at 212. I have never had a problem with over heating on my '36 coupe with an original radiator while driving in the western deserts and Los Angeles traffic. I have driven the car over 94k in the 68 years I have owned the car. I am in the process of freshening the car up, it was past due. One of the things I am going to add to the engine is a modification to the radiator to accommodate a pressure cap and a coolant overflow tank.
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09-24-2020, 06:24 PM | #11 |
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Re: 41 mostly stock 6v posted ground - adding a fan
Bill-
First, congratulations on owning and driving that car for so long! I have to ask...why modify the system if it's worked so well for so long? I rather like the idea of a non-pressurized system if it cools well. Easy on hoses and radiators. Terry
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"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" 302 |
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