94' Q: Stress Crack in Radiator Fan

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sdkhalsa
Posts: 258
Joined: Thu Apr 28, 2005 2:04 pm
Car: 94 Q45 06 M35

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Having replaced my radiator fan(the main one, not the electric) a few years ago, the new one is starting to develop cracks also. Has anyone actually had one of these come apart on them? I can imagine some bad things happening if that occured, maybe destroying the radiator.


oldmako
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That fan sucks, so your rad will remain unscathed.

maxnix
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Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

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Yes, it has occurred. Flying fan blade bits have damaged radiators.

bigdog76
Posts: 257
Joined: Fri Oct 21, 2005 5:46 am
Car: 1996 Infinity Q45

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I replaced my first one 4 years ago The new one is cracking again. If it gets any worse I might have to replace this one again too dont want to run the risk just replaced my radiator last year


maxnix
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1995 Infiniti Q45t
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oldmako wrote:That fan sucks, so your rad will remain unscathed.
Let me ask you this, how do propeller airplanes fly? Which way does the propeller mechanism move through the air?

If they worked like you stated, planes would only fly backwards.

Be sure to post before you have breakfast with Mr. Beam.

qship96
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Joined: Sun Nov 24, 2002 11:31 am
Car: 1996 Infiniti Q45

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Flying shards of broken fan can also take out belts, hoses, and if large enough hit underside of hood leaving dents,especially if motor is spinning at high RPM's at the time!!!

oldmako
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maxnix wrote:Let me ask you this, how do propeller airplanes fly? Which way does the propeller mechanism move through the air?

If they worked like you stated, planes would only fly backwards.

Be sure to post before you have breakfast with Mr. Beam.
Wellllll.....

Methinks that the centrifugal force of those spinning blades is going to determine where the loose bits go when it flies apart....not the fact that it's got a bit of yank on the air immediately in front of it. A DC3 once lost a prop and guess where it went? Right through the fuselage next to the engine, it did not meander ahead of the plane through some miracle of Bernoulli. Likewise there have been numerous instances of jet engines shucking compressor blades and they always go out perp to the axis of rotation...never forward. Hence my comment that his rad was probably out of harms way. Could the parts bounce forward? Well, perhaps....but I am not going to change my fan due to some cracked plastic. If you want to....Call Joe.

It's summer. The Beam is on the shelf except for the occasional julep. It's now Beefeater time.


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bullittandy
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sdkhalsa wrote:Having replaced my radiator fan(the main one, not the electric) a few years ago, the new one is starting to develop cracks also. Has anyone actually had one of these come apart on them? I can imagine some bad things happening if that occured, maybe destroying the radiator.
My fan blade has been cracked since 194K and car now has 238K.

I haven't heard of anyone on this board that has actually had a fan come apart, only cracked.

oldmako
Posts: 727
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Car: '99 Infiniti Q45 190K Black&Tan
'96 Chevy Silverado 5.0 245K
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My fan exhibits numerous fine cracks at the base of each fin. I consider it nothing more than a nice patina. A record of the cars vintage and heritage. It's no big deal. I promise that I will post when it comes apart and trashes my car.



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