Top bolt on a MT39/Cummins M11. 99 Volvo VNL- HELP

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by jayfarmlaw, Nov 26, 2022.

  1. jayfarmlaw

    jayfarmlaw Bobtail Member

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    Dec 12, 2020
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    Starter is toast, 50 feet from a dry shop. All right, I’ve fished blindly hoping to get the socket on and have had no luck. I have a long enough extension, just can’t hit the bolt head. Computer is in the way and it feels like there are wires in the way trying to run down the engine side of the solenoid. Is there a trick to this, I’ve even run my inspection camera down and can’t see it.

    question 2- local dealer had a new Delco Mt39 in stock for 300. They ran my vin and said this was the starter. There is a small device attached to the solenoid, I don’t think my starter has this. Wrong starter or just put it in and go. The device may hit the computer…..not sure. Going back out to fish for the top bolt some more.

    thanks in advance for your help.

    jay
     
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  3. jayfarmlaw

    jayfarmlaw Bobtail Member

    23
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    Dec 12, 2020
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    I got it. Top bolt was caked in mud, directly above about a 2 inch deep puddle I was trying to avoid. I was using a deep socket that wouldn’t give me the angle I needed. So, shallow socket, long extension, force your way past the wires in the way, and a cheater bar on your ratchet. Now…..starters are different. Maybe a 42 originally and a 39 replacement? The little device may fit because the starter seems smaller. But which wire goes to it?

    Does the nose cone make a difference? I’ll swap the aluminum spacer over.

    thanks again.

    Jay

    BD82E73F-5AF9-46F5-9F4E-ADBB16A949A5.jpeg
     
  4. jayfarmlaw

    jayfarmlaw Bobtail Member

    23
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    Dec 12, 2020
    0
  5. jayfarmlaw

    jayfarmlaw Bobtail Member

    23
    10
    Dec 12, 2020
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    And remounting the magnetic starter switch for clearance issues.


    jay
     
    singlescrewshaker Thanks this.
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