05-19-2014, 08:22 PM | #21 |
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Re: aluminum fan
Hi Sir:
I would change to an aluminum fan. You can get one at Snyders, Mikes or your favorite Model A Vendor. They are balanced, powder coated and will not impale into your radiator or hood when it brakes (the original type of fan). One of our club members gave us a presentation on this showing how his original fan impaled into his hood. His repair cost close to $700.00. Henry's 31 |
05-19-2014, 10:26 PM | #22 |
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Re: aluminum fan
New or used 4 steel four blade. I had a blade go on a used 4 blade.
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05-19-2014, 10:34 PM | #23 | |
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Re: aluminum fan
Quote:
This is about like gluing different sized weights to any fan blade and expecting to to be safe. Go spend the $50 or so for the one piece cast aluminum and dont have to worry about it.
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05-22-2014, 03:08 PM | #24 |
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Re: aluminum fan
A couple of notes. I had a stamped four blader on my '30 coupe. The one of the blades decided to fly off and introduce itself to my radiator. I was out on a tour at the time so we took the fan off, separated the two "halves" and continued on with a "two blader" after filling the radiator with stopleak. I won't get into what a mess that made in the engine compartment.
As a side note a few folks in my club have said that they have had "balance" issues with aftermarket two blade cast fans. I am rebuilding the engine in my '28 roadster as we speak (OK "having" it rebuilt would be more precise) and I plan on having the new cast fan I bought from Snyder's balanced before installation. |
05-22-2014, 04:40 PM | #25 |
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Re: aluminum fan
About 5 to 7 years ago some of the aluminum fans did have issues with blades not being straight or parrellel with each other. This also caused some balance issues.
All the aluminum fans I've checked for the past 5 years have been excellent in quality and balance. |
05-24-2014, 11:27 PM | #26 |
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Re: aluminum fan
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05-25-2014, 03:18 AM | #27 |
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Re: aluminum fan
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05-25-2014, 09:28 AM | #28 |
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Re: aluminum fan
There is no way to measure the remaining fatigue life of an original fan, so no matter how good it looks, you are playing Russian Roulette. Keep in mind that the principal loading on the fan blades is BENDING, TWISTING and TENSION. There is no way to reasonably repair, reinforce or enhance the fatigue life of an original fan.
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05-25-2014, 11:45 PM | #29 |
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Re: aluminum fan
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05-26-2014, 07:48 AM | #30 |
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Re: aluminum fan
I just got a new two blade from Snyder's last week. No delay. I like the looks much better than the four blade that someone put on it.
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05-26-2014, 08:06 AM | #31 |
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Re: aluminum fan
Like Tom, I also have several fan blades that do not have cracks in them. I like to use original parts, but I am torn between the "original" look and a possible problem. What to do!
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05-26-2014, 08:33 AM | #32 |
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Re: aluminum fan
New replacement fan from Snyder's last year. Perfect fit right out of the box, no mods needed. Perfect balance. I would recommend a new aluminum fan to anybody who drives their Model A, for safety AND peace of mind.
And yes, the original IS garage art now even as we speak!! |
05-26-2014, 09:15 AM | #33 |
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Re: aluminum fan
Just bought an aluminum fan. Snyders has plenty of them. After installing it I took a close look at the 4 blade I took off. Not saying anyone is wrong but the fan is riveted in 8 places, 4 to the pulley and 4 it the hub. Then the castle nut also holds the blade. No way this fan would have come apart. Looks original. Maybe it' just the original 2 blade that falls apart.
By the way the 4 blade does pull through more air than the 2. |
05-26-2014, 09:20 AM | #34 |
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Re: aluminum fan
Gee, I have an original steel fan... I suppose after reading this I should replace it...
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05-26-2014, 10:52 AM | #35 | |
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Re: aluminum fan
Quote:
The model 46 fans were used on four cylinder Ford trucks from 1933 till end. These fans were sold as a replacement for the model A fan , probably in to the fifties . Some are newer than others and have less stress and wear. Even if the four blade fan is new old stock, it makes removal and replacement of the water pump very difficult and isn't the better choice. |
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05-26-2014, 11:25 AM | #36 |
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Re: aluminum fan
There was a study on fan blades posted here a year or so ago that stated the 2 blade fan moved more air by as much as 15% over a 4 blade steel fan or 6 blade plastic fan . If you do a search you will find the study.
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05-26-2014, 05:18 PM | #37 |
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Re: aluminum fan
After replacing my 4 blade with the 2 blade aluminum I notice that at idle the car runs at a hotter temperature. The only thing I changed was the fan, so what makes it run hotter than when the 4 blade was on the engine? The pitch of the 4 and 2 look about the same.
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05-26-2014, 09:24 PM | #38 |
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Re: aluminum fan
Don't know. If you prefer the four blade fan, put it back on. If it hasn't been used much and is in excellent condition you will probably never have a problem .
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05-26-2014, 10:54 PM | #39 | |
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Re: aluminum fan
Quote:
Pluck |
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05-27-2014, 02:05 AM | #40 |
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Re: aluminum fan
With all the repeat talk and posts about this, and new stories all the time about them coming apart, I am just surprised that some insist on still running the original ones, feeling that they just need to inspect them. Why in the world take a chance? Unless you have an original high point car, it doesn't make any sense at all......in a word, roulette!
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