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Another day, another problem *sigh*

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by HoneyBadger67, Mar 13, 2020.

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  1. Mar 13, 2020 #1
    HoneyBadger67

    HoneyBadger67 Road Train Member

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    '08 cummins isx (deleted) recently had the head replaced along with fan (main) belt tensioner and belt. Since I've gotten the truck back, the belt squeaks almost constantly and worse when it's wet. It is driving me bonkers. The belt appears to track fine, it just makes a lot of noise.

    Second problem is yesterday a nipple broke off of the coolant reservoir. I got it shut down pretty quick and didn't see the temp go up past normal (185-190). Just worried I'm missing something else that might be wrong.
     
    HoneyBadger67, Mar 13, 2020
    HoneyBadger67, Mar 13, 2020
    #1
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  3. Mar 13, 2020 #2
    RocketScott

    RocketScott Medium Load Member

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    Try some belt dressing, maybe?
     
    RocketScott, Mar 13, 2020
    RocketScott, Mar 13, 2020
    #2
    Chinatown Thanks this.
  4. Mar 13, 2020 #3
    AModelCat

    AModelCat Road Train Member

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    What do your other pullies look like?
     
    AModelCat, Mar 13, 2020
    AModelCat, Mar 13, 2020
    #3
    jammer910Z Thanks this.
  5. Mar 13, 2020 #4
    HoneyBadger67

    HoneyBadger67 Road Train Member

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    Pulleys look ok. Not a lot of rust or anything. There's no idlers, just the tension, water, fan and alternator
     
    HoneyBadger67, Mar 13, 2020
    HoneyBadger67, Mar 13, 2020
    #4
  7. Mar 13, 2020 #5
    AModelCat

    AModelCat Road Train Member

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    Grooves not worn or anything?
     
    AModelCat, Mar 13, 2020
    AModelCat, Mar 13, 2020
    #5
  8. Mar 13, 2020 #6
    jammer910Z

    jammer910Z Road Train Member

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    Belt dressing is horrible for belts.
    Best to fix the problem.
     
    jammer910Z, Mar 13, 2020
    jammer910Z, Mar 13, 2020
    #6
    Deere hunter and HoneyBadger67 Thank this.
  9. Mar 13, 2020 #7
    boneebone

    boneebone Road Train Member

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    It could be a weak or defective spring on the tensioner, belts usually squeal because they’re loose, (not enough tension) belt is glazed or not aligned with the other pulleys.

    It could also be a bad bearing on the alternator, A/C compressor, p/s pump, air compressor or tensioner.
     
    boneebone, Mar 13, 2020
    boneebone, Mar 13, 2020
    #7
    Deere hunter and jammer910Z Thank this.
  10. Mar 13, 2020 #8
    201

    201 Road Train Member

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    The tensioner is the idler. Any squeal was usually the belt was loose. If it makes noise at idle, it should tell you where it's coming from. Don't use belt dressing, makes a mess.
     
    201, Mar 13, 2020
    201, Mar 13, 2020
    #8
    Deere hunter Thanks this.
  11. Mar 13, 2020 #9
    HoneyBadger67

    HoneyBadger67 Road Train Member

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    Tensioner is new as is the belt
     
    HoneyBadger67, Mar 13, 2020
    HoneyBadger67, Mar 13, 2020
    #9
  12. Mar 13, 2020 #10
    HoneyBadger67

    HoneyBadger67 Road Train Member

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    I didn't notice any wear, all the ridges still appear defined
     
    HoneyBadger67, Mar 13, 2020
    HoneyBadger67, Mar 13, 2020
    #10
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