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12 blade fan what a joke

Discussion in 'Trucks [ Eighteen Wheelers ]' started by coalhauler625, Mar 29, 2009.

  1. Mar 29, 2009 #1
    coalhauler625

    coalhauler625 Light Load Member

    96
    12
    Jan 6, 2009
    somewhere in VA,KY or WV
    0
    well i had to replace the fan on my 06 pete the other day MXS cat with that big ol 12 blade fan the center of the hub broke out all the way around the bolt holes ( it was about to get ugly) i have replaced atleast 3 or 4 fan-hubs on this truck, my guess is the fan was too big of a drag on the hub, i could rev the motor with the hood open and it would suck it shut , i put a 8 blade fan back on it like i have on my 01 star and it was a tremendous difference , truck runs just as cool as ever , even picked it up a GEAR on long hard pulls , not even as noisy , i bet the 8- blade was 10lb. lighter too , that should help the hub , maybe even some better fuel milage too ,
     
    coalhauler625, Mar 29, 2009
    coalhauler625, Mar 29, 2009
    #1
    7mouths2feed Thanks this.
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  3. Mar 29, 2009 #2
    JSmitty

    JSmitty Light Load Member

    288
    52
    Feb 22, 2009
    Midland Tx
    0
    Ever since early 2005, they have had nothing but issues with the fans. Especially if you keep the fan on with higher rpm's. hose fans pull a heck of alot of air.
     
    JSmitty, Mar 29, 2009
    JSmitty, Mar 29, 2009
    #2
  4. Mar 29, 2009 #3
    Sportster2000

    Sportster2000 Road Train Member

    1,480
    886
    Jan 5, 2008
    Indiana
    0
    A fan on a truck can use up to 100 horsepower when on if you can believe that. So your 500 hp truck going up a hill with the fan on is really acting like a 400 hp truck.
     
    Sportster2000, Mar 29, 2009
    Sportster2000, Mar 29, 2009
    #3
  5. Mar 29, 2009 #4
    05379

    05379 Light Load Member

    115
    3
    Nov 15, 2008
    montague ma
    0
    helps with engine braking though but sucks up hill.
     
    05379, Mar 29, 2009
    05379, Mar 29, 2009
    #4
  7. Mar 29, 2009 #5
    07-379Pete

    07-379Pete Crusty Commando-Pete

    2,549
    2,347
    Oct 3, 2008
    Campbellsville, Ky
    0
    Horton had a recall on there fan hubs for an upgrade kit. Peterbilt should have told you about it back in 2007. In fact I still have my letter dated May 11 2007.
     
    07-379Pete, Mar 29, 2009
    07-379Pete, Mar 29, 2009
    #5
  8. Mar 29, 2009 #6
    fte05

    fte05 Bobtail Member

    40
    3
    Dec 23, 2008
    imler,Pa
    0
    My hubs only last about a year on my 05 MXS, the last one took the hub, fan, radiator, about $2200 in all:biggrin_25510:
     
    fte05, Mar 29, 2009
    fte05, Mar 29, 2009
    #6
  9. Mar 29, 2009 #7
    coalhauler625

    coalhauler625 Light Load Member

    96
    12
    Jan 6, 2009
    somewhere in VA,KY or WV
    0
    already had 2 of them severe duty kit.....i think thats what they call it big fan just kills the hub should do better with 8 blade
     
    coalhauler625, Mar 29, 2009
    coalhauler625, Mar 29, 2009
    #7
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