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Author Topic: Radiator fan  (Read 3803 times)

R. Dave Carr

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Radiator fan
« on: February 13, 2012, 08:18:32 PM »

Guys, what fan set up do you prefer, the 5 blade clutch or the 7 bl;ade clutch?  Newport has a direct drive 7 blade now.
 
 
 
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R. Dave Carr

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Radiator fan
« Reply #2 on: February 14, 2012, 08:52:26 AM »

The least expensive of the three, which ever one you can get. Solid blades and clutch fan, all are good, just don't use a flex fan, they flatten at higher speed and slow the flow of air and tend to overheat that way.
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R. Dave Carr

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« Reply #3 on: February 14, 2012, 09:33:38 AM »




Never liked flex fans for that reason!
carrman2012-02-14 14:33:57
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Brian

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« Reply #4 on: February 14, 2012, 11:02:30 AM »

I know Leaburn runs the 5 blade fan that was used on most RWD mopars from the 80's to 90's.  They pull just as much air as the 7 blade fans, but have a bit less rotating mass.

I have several 7 blade fans, different OD and clutch vs non-clutch, as well as a 5 blader...I'm currently running a 7 blade fan with a clutch on the wagon.



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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

Brian

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« Reply #5 on: February 14, 2012, 11:05:15 AM »

Man when I was having some cooling issues...turned out I had the distributor hooked to full vacuum on the carb so was running full advance all the time.  Anyway I switched to a fixed 7 blade with a shroud...man did that thing pull air!!  I was adjusting, and checking my distributor and had the motor revving at 2000 rpm...I could barely keep my eyes open while leaning over the front of the car. And it makes a bit of noise as well.

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Brian

02 Chrysler Concorde Lxi
84 Dodge Crewcab, Cummins/5speed
68 Chrysler Station Wagon 440/auto
48 Desoto 2dr Sedan flat 6/3spd manual

R. Dave Carr

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« Reply #6 on: February 14, 2012, 11:19:05 AM »



Just needs a clutch!!!  Amazing what you find when you go look.....;-)
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Radiator fan
« Reply #7 on: February 14, 2012, 11:32:08 AM »

Works for me.
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Steve

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« Reply #8 on: February 14, 2012, 12:31:01 PM »



Just remember the rigid blades will take power and hurt MPG
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R. Dave Carr

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« Reply #9 on: February 14, 2012, 01:28:27 PM »



Clutch fan will be better than direct drive fan I have now.
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R. Dave Carr

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« Reply #10 on: February 15, 2012, 04:55:19 PM »

Pop quiz!  What size bolts to attach new clutch to water pump?
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Radiator fan
« Reply #11 on: February 15, 2012, 05:28:23 PM »

1/2 inch wrench, so 5/16 fine thread if not mistaken. Carb studs are the right size.
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R. Dave Carr

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« Reply #12 on: February 15, 2012, 05:37:41 PM »

Length?
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Steve

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« Reply #13 on: February 15, 2012, 06:10:57 PM »



Grade 5  or 8   5/16 - 18  Not 24 like Ed said,  They're USS  Not SAE.  He's in the 50's     Damned Swabbies 
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« Reply #14 on: February 15, 2012, 07:10:47 PM »

Yeah, OK, so I was backwards. For some reason I was thinking fine, not course. Oh, well, he would have figured it out, can't do everything to jog your memory, can I?
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