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Cracked bell housing

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Dino soar, Jan 4, 2018.

  1. Jan 4, 2018 #1
    Dino soar

    Dino soar Road Train Member

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    I'm going to look at a truck for sale that has a cracked bell housing.

    What would cause this kind of a problem and what are the other problems that are associated with having a cracked bell housing?

    Is the truck safe to drive empty?
     
    Dino soar, Jan 4, 2018
    Dino soar, Jan 4, 2018
    #1
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  3. Jan 4, 2018 #2
    boneebone

    boneebone Road Train Member

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    A cracked bell housing is caused by worn transmission and/or engine mounts causing excessive vibration or movement which eventually will cause the bell housing to crack.

    It would be safe to drive it home or to a repair shop, but I would have it replaced ASAP.
     
    boneebone, Jan 4, 2018
    boneebone, Jan 4, 2018
    #2
    Dino soar Thanks this.
  4. Jan 4, 2018 #3
    BoxCarKidd

    BoxCarKidd Road Train Member

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    Like he said or drive line issues. On heavy trucks I refer to the housing on the front of the transmission as the bell housing. The housing between it and the engine I refer to as the flywheel housing.
    Which one is it and how bad is it cracked?
     
    BoxCarKidd, Jan 4, 2018
    BoxCarKidd, Jan 4, 2018
    #3
  5. Jan 4, 2018 #4
    Dino soar

    Dino soar Road Train Member

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    I don't know how badly it is cracked I have not seen the truck yet. The seller says it's the transmission bellhousing.

    I do have another whole transmission I could put in if the trans is bad and I have another flywheel housing for that particular engine if it needs one. I also have bellhousings that would fit that particular transmission.

    I think mainly I'm asking what other type of problems could have caused that and what other problems could come from that if they ran it for a while. That way I know what I'm up against if I were to purchase the truck.

    If it's decent I would just baby it home and get into it.
     
    Dino soar, Jan 4, 2018
    Dino soar, Jan 4, 2018
    #4
  7. Jan 4, 2018 #5
    Justrucking2

    Justrucking2 Road Train Member

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    Which motor does it have? Cummins has an oil passage that goes through that housing if it is an ISX.
     
    Justrucking2, Jan 4, 2018
    Justrucking2, Jan 4, 2018
    #5
  8. Jan 4, 2018 #6
    Hollywood903

    Hollywood903 Bobtail Member

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    My dad had one crack on him the cause was motor mount broke then only had a few bolts holding transmission make sure you check bolts before you lose a Tranny on the road
     
    Hollywood903, Jan 4, 2018
    Hollywood903, Jan 4, 2018
    #6
    mitmaks, Dino soar and Oldironfan Thank this.
  9. Jan 5, 2018 #7
    Oldironfan

    Oldironfan Road Train Member

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    I drive a cracked belhousing from delkalb, IL, to Menomonee Michigan area a while back. No problem bobtail. Just slip gears.
     
    Oldironfan, Jan 5, 2018
    Oldironfan, Jan 5, 2018
    #7
  10. Jan 5, 2018 #8
    terryt

    terryt Heavy Load Member

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    Check the bolts in the bell housing to make sure they are tight. We see this a lot a driver come in for a clutch adjustment only to find the bell housing bolts are loose and have seen cracked ones before too. It probably how they found this one.
     
    terryt, Jan 5, 2018
    terryt, Jan 5, 2018
    #8
    mitmaks, BoxCarKidd and Dino soar Thank this.
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