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Figure I’d Ask.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by J.S., Aug 23, 2025.

Page 2 of 2
  1. Sep 18, 2025 #11
    JB7

    JB7 Heavy Load Member

    953
    1,647
    Dec 13, 2022
    Laurel, MD
    0
    Rebuilding a Kysor-Style Fan Clutch
    The video also refers to the bearing and the link on how to replace it.
     
    Last edited: Sep 18, 2025
    JB7, Sep 18, 2025
    JB7, Sep 18, 2025
    #11
    J.S. Thanks this.
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  3. Sep 18, 2025 #12
    J.S.

    J.S. Medium Load Member

    472
    209
    Jun 27, 2015
    Texas
    0
    J.S., Sep 18, 2025
    J.S., Sep 18, 2025
    #12
  4. Sep 18, 2025 #13
    J.S.

    J.S. Medium Load Member

    472
    209
    Jun 27, 2015
    Texas
    0
    Got clutch off. Dirty but else just mess to be cleaned up to me?
     

    Attached Files:

    J.S., Sep 18, 2025
    J.S., Sep 18, 2025
    #13
    D.Tibbitt Thanks this.
  5. Sep 21, 2025 #14
    ashtonluvtrucking

    ashtonluvtrucking Bobtail Member

    4
    3
    Sep 16, 2025
    0
    Yeah, that long air dump is the giveaway. A quick hiss is normal, but 10 seconds usually means the clutch is bleeding off internally. At 700k it’s not unusual for them to start failing even if there’s no play yet. Both BorgWarner and Kysor are good—if FTL has the Kysor cheaper, I’d go with that. You’re probably catching it early, so swapping it now will save you from getting stuck with a fan that won’t disengage later.
     
    ashtonluvtrucking, Sep 21, 2025
    ashtonluvtrucking, Sep 21, 2025
    #14
    Rugerfan, J.S. and D.Tibbitt Thank this.
  7. Sep 21, 2025 #15
    J.S.

    J.S. Medium Load Member

    472
    209
    Jun 27, 2015
    Texas
    0
    After close inspection I found the washer on the clutch had rotted. Was glad to see something. Probably could just use the kit but got it done and back running. Thanks all!
     
    J.S., Sep 21, 2025
    J.S., Sep 21, 2025
    #15
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