Reverse Cooling fan?

[JimC]

Hi everyone,
I have a TEA20 that I use for cutting my 3 acre lawn. I previously used a Ford 2N, I like the Ferguson but noticed that it has one major difference from the Ford tractor. The cooling fan draws air in through the radiator toward the operator, and the Ford pushed the air through it from the inside.

This may not seem like a large difference, but when it is hot out it makes a LARGE difference in operator comfort. Not only do I now get a steady flow of very hot air, I get dust, bugs, pollen and a host of other items blowing back at me while cutting.

Has anyone else found a fan that will reverse the air flow? or can I just turn it over and use the same one?

Thanks in advance,
Jim

 

[Bob (Aust)]

[b:3437a2679f]Jim.[/b:3437a2679f] I've never seen a Ford-Ferguson - you may be correct but I would be very surprised. I can't say I've ever seen a reverse flow cooling fan.........

[i:3437a2679f]"...or can I just turn it over and use the same one?"[/i:3437a2679f] Now think about that one........ :lol: I can't remember if the fan will go on the other way around, but either way, it will still draw the air through the radiator back to the engine.

Never heard of a fan that will reverse the air flow direction (i.e. reverse pitch blades) but I certainly don't like the idea - I doubt it would be very efficient at all in cooling a tractor engine traveling forward. If it were possible, I think you may have serious cooling problems.

They blow a little hot air back, but only around your legs. I hope you have a fan shroud installed on the radiator - your cooling system will not work correctly without the original cooling fan shroud.

Due to the risks of grass fires in Australia, most tractors here have up swept exhausts. If they are not correctly made, you can get a face full of exhaust or snag low hanging tree branches, which is far worse than a bit of hot air on your legs.

Bob in Oz
'53 TEA20

 

[steve loosemore]

Actually, the fan will work in the reverse direction when put on backward. It used to be a common cause of overheating in cars. My TO-35 "draws air through the radiator and blows it around the engine"

 

[JMOR]

(quoted from post at 15:55:51 06/22/09) Actually, the fan will work in the reverse direction when put on backward. It used to be a common cause of overheating in cars. My TO-35 "draws air through the radiator and blows it around the engine"

Awkward statement.
It will "work" if installed backward, BUT air flow direction is NOT reversed.
It will NOT even work well when installed backward. The blades are designed for a particular rotation and if you alter that, the opposite edge hits the air first (think cupped vs non-cupped) (or shoveling dirt with the back side of your spade) & it will be much less efficient and thus your overheating car.

 

[440roadrunner]

(quoted from post at 13:18:53 06/22/09)

(quoted from post at 15:55:51 06/22/09) Actually, the fan will work in the reverse direction when put on backward. It used to be a common cause of overheating in cars. My TO-35 "draws air through the radiator and blows it around the engine"

Awkward statement.
It will "work" if installed backward, BUT air flow direction is NOT reversed.
It will NOT even work well when installed backward. The blades are designed for a particular rotation and if you alter that, the opposite edge hits the air first (think cupped vs non-cupped) (or shoveling dirt with the back side of your spade) & it will be much less efficient and thus your overheating car.

Correcomondo. If you turn a fan blade around on it's mount it WILL STILL BLOW IN THE SAME DIRECTION, but it's EFFICIENCY will be dramatially REDUCED

 

[Howard H.]

Years ago near here a big farmer ordered a new JD 4 wheel drive with Sound-Gard cab with NO A/C to save money.

The tight cab & heat off the engine was killing the operators, so he had the bright idea to reverse the fan...

It worked great, until it soon burned up the hydraulic system from blowing hot engine air straight onto the hydraulic cooling radiator in front of it...


Howard

 

[Bob (Aust)]

I think a few may be missing the point here...........

There is no point in reversing a fan - any fan - by taking it off and turning it over. It will still "draw" the same way.

The only way to reverse direction of the air flow would be by either reversing [u:e411194477]the blade pitch[/u:e411194477] or [u:e411194477]reversing the direction of the fan rotation[/u:e411194477] - not reversing the fan assembly.

Let me phrase that another way. My Jaguar has an electric after market cooling fan which screws onto the radiator. It is designed to be installed either front or back of the radiator core. Once installed the fan's electric motor polarity must be connected to ensure it draws air through the radiator, back towards the engine. I.E. being a direct current (DC) motor it will rotate in either direction, depending on the polarity of the electrical connection.

The fan will [u:e411194477]NOT[/u:e411194477] work in the reverse direction when put on backward.

You can not reverse direction of the air flow by simply reversing the fan.

 

[steve loosemore]

You are correct that reversing a fan will not reverse the direction of air flow. I was misinformed many years ago and never questioned it. I am sorry.

 

[JMOR]

(quoted from post at 18:38:12 06/22/09) You are correct that reversing a fan will not reverse the direction of air flow. I was misinformed many years ago and never questioned it. I am sorry.

OK. You are not alone, there appears to be other believers too.
Now that you have been severely beat about the head & shoulders, you are forgiven! :shock:

 

[Bob (Aust)]

Ah, he didin't need to apologise - we all come here to learn! :lol:

Had it not been for me playing around with constant speed and reversible pitch propellors on aircraft for 30 years, I probably would have made the same error......

And of course, there is that language barrier between Aussies and Yanks. Joined by a common heritage; divided by a common language....

:?

Bob in Oz
'53 TEA20

 

[JimC]

OK

I retract my question about flipping the fan over, had I thought about that a little more I would not have asked it.

BUT=
I see from the brochure that I was correct, my ford did have a pusher fan on it, it is the six blade one on the bottom of the page.

Does anyone know where I could find one for the fergy? would they be the same??

Thanks for all the responses so far,
Jim

 

[Bob (Aust)]

Jim. If it is available I'll bet it now costs far more than $1.50! :lol:

 

[JMOR]

(quoted from post at 16:46:15 06/23/09) OK

I retract my question about flipping the fan over, had I thought about that a little more I would not have asked it.

BUT=
I see from the brochure that I was correct, my ford did have a pusher fan on it, it is the six blade one on the bottom of the page.

Does anyone know where I could find one for the fergy? would they be the same??

Thanks for all the responses so far,
Jim

nlikely that the Ford N fan would fit the Fergy. The general consensus is that very few parts are interchangeable & I believe most of those were in the hydraulics area.