460 Flex fan
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From: Cleveland, WI USA
460 Flex fan
Greetings all!
I have a 5-blade flex fan on my 71 460 and the blades are not evenly spaced. Can anyone tell me why the wierd spacing?
At first I thought it was a balance thing, but realized it's on the water pump and belt driven, so that can't be it.
Just curious.
Kevin K.
I have a 5-blade flex fan on my 71 460 and the blades are not evenly spaced. Can anyone tell me why the wierd spacing?
At first I thought it was a balance thing, but realized it's on the water pump and belt driven, so that can't be it.
Just curious.
Kevin K.
Elder User
Joined: Apr 2001
Posts: 997
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From: texarkana, tx
460 Flex fan
You mean unevenly spaced like this one <http://www.beedzncomputers.com/truck/engine/engine.html>?
For the life of me, I forgot what the explanation is but it runs great - I've had it to 90 miles per hour without any problems - (have to wait till the steering box is replaced before I can go any faster...
)
For the life of me, I forgot what the explanation is but it runs great - I've had it to 90 miles per hour without any problems - (have to wait till the steering box is replaced before I can go any faster...
)
Elder User
Joined: Aug 2001
Posts: 508
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460 Flex fan
Noise.
The blades are spaced funny to reduce the noise. If they were evenly spaced, you'd hear a RRRRRRRR. The irregular spacing reduces the frequency of the RRRR to one that won't bother you. The tread on some tires is irregular for the same reason.
The blades are spaced funny to reduce the noise. If they were evenly spaced, you'd hear a RRRRRRRR. The irregular spacing reduces the frequency of the RRRR to one that won't bother you. The tread on some tires is irregular for the same reason.
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