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  • November 21, 2024, 07:55:37 AM

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Author Topic: Aluminum Radiator and Flex Fan  (Read 14177 times)

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Offline TheWraith

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Re: Aluminum Radiator and Flex Fan
« Reply #15 on: December 13, 2012, 07:22:27 AM »
The thermal fan clutches actually work better and reduce the drag on the engine significantly more then a flex fan.  Only draw back is when they fail.  However, they are made fairly well and can go many years/miles before failure.  When they do fail it isn't catastrophic.  Flex fans are not well balanced and their balance will change over time as the miles pile up.  I've seen the aftermath more than once from when a flex fan vibrates loose and get ejected.  Never know which direction it will travel in either.  One I saw went straight up and made it most of the way through the hood before stopping.  For these reasons I avoid flex fans.  Food for thought.
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Offline carguy87

  • Eagle DL
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Re: Aluminum Radiator and Flex Fan
« Reply #16 on: December 23, 2012, 11:55:30 AM »
My old thermal failed in the way it was in full swing.  The bearings fell out of it basically, so it was never in slow motion.  I've personally always used flex fans on my chevelle's and older trucks and never had one fail.  I did have a thermal fan fail in my 66' chevelle station wagon and one of the blades managed to put a nice hole in the hood  :-[  That was why it got the flex treatment as well.
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