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Eaton Fro 15210c transmission has idle Rattle

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Hulld, Aug 16, 2018.

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  1. Aug 16, 2018 #1
    Hulld

    Hulld Road Train Member

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    Anyone else have this problem and is there a cure?
    It can be really annoying at times.
     
    Hulld, Aug 16, 2018
    Hulld, Aug 16, 2018
    #1
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  3. Aug 16, 2018 #2
    McMahons Trucking

    McMahons Trucking Light Load Member

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    Is it the throwout bearing or does the clutch need adjusted?
     
    McMahons Trucking, Aug 16, 2018
    McMahons Trucking, Aug 16, 2018
    #2
  4. Aug 16, 2018 #3
    AModelCat

    AModelCat Road Train Member

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    I was rebuilding a 15615 last winter and ran into an input shaft issue. Eaton went with smaller teeth on their input shaft to drive gear splines, creating rotational slop in the old drive gear. After consulting a few shops the general consensus was that it would be ok but could rattle at idle. I found an older style shaft that fit better so used it instead.
     
    AModelCat, Aug 16, 2018
    AModelCat, Aug 16, 2018
    #3
    Hulld Thanks this.
  5. Aug 16, 2018 #4
    Hulld

    Hulld Road Train Member

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    Clutch is brand new and adjusted and performs flawlessly.
     
    Hulld, Aug 16, 2018
    Hulld, Aug 16, 2018
    #4
  7. Aug 16, 2018 #5
    Hulld

    Hulld Road Train Member

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    It does have the genuine Eaton input shaft in it with the smaller teeth.
    I have been running the Eaton shaft for about three years and it always had some rattling but seems worse sense I upgraded the clutch recently to a 2050 torque.
     
    Hulld, Aug 16, 2018
    Hulld, Aug 16, 2018
    #5
  8. Aug 16, 2018 #6
    AModelCat

    AModelCat Road Train Member

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    I went with an aftermarket shaft in mine that had the big teeth. Its only a 375/1,350 Cat in a hobby truck. We'll see if it holds up.
     
    AModelCat, Aug 16, 2018
    AModelCat, Aug 16, 2018
    #6
    Hulld Thanks this.
  9. Aug 16, 2018 #7
    Hulld

    Hulld Road Train Member

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    Does yours rattle?
    I had to upgrade my clutch because I was getting clutch slip at low speed high torque tip in situations with my programmed 14 liter Detroit
     
    Hulld, Aug 16, 2018
    Hulld, Aug 16, 2018
    #7
  10. Aug 16, 2018 #8
    AModelCat

    AModelCat Road Train Member

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    Haven't tried it yet. Transmission is still on the shop floor.
     
    AModelCat, Aug 16, 2018
    AModelCat, Aug 16, 2018
    #8
  11. Aug 17, 2018 #9
    Tug Toy

    Tug Toy Road Train Member

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    I’ve had 2 Eaton rebuilt transmissions 10 spd in the last 3 years. Both rattle loudly at idle.
     
    Tug Toy, Aug 17, 2018
    Tug Toy, Aug 17, 2018
    #9
    SAR and Hulld Thank this.
  12. Aug 17, 2018 #10
    Hulld

    Hulld Road Train Member

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    Interesting..
    I have been also told this by a few other people.
     
    Hulld, Aug 17, 2018
    Hulld, Aug 17, 2018
    #10
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