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Fan blade question, why lopsided?

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Old Sep 14, 2003 | 12:22 AM
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rsmack
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Fan blade question, why lopsided?

I am rebuilding my sons F150 351w engine from his 91 truck. While I was cleaning and painting all the parts to go back on I noticed that the fan blades are not evenly spaced, I almost looks like one is missing, is this normal?. There are 5 blades and nothing is broken but it sure looks like it should have 6 blades for balance. Since the fan looks to me to be off balance should it go on a special way?

thanks for and answers,
Russell Mack
 
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Old Sep 14, 2003 | 01:47 AM
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90f150moneypit
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From: Still under the hood in O
Fan blade question, why lopsided?

I wouldn't worry about it. Mine seems to have larger spaces between some of the blades as well, and the cooling system works fine with no balance problems. It just looks weird.
 
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Old Sep 14, 2003 | 08:46 AM
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macguyver
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Fan blade question, why lopsided?

The fan blades are offset to reduce the noise it makes. It will still have a neutral balance.
 
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