Breaking in An Engine

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by joey8686, Nov 1, 2020.

  1. joey8686

    joey8686 Light Load Member

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    I’m rebuilding my engine right now (cat C15). Does anyone know how to break in an engine without a loaded trailer ? I dropped my trailer at the yard and it’s over 100 miles away........
     
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  3. Goodysnap

    Goodysnap Road Train Member

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    The best way is with a real load. I believe CAT will break in on the Dyno, but at what cost ?......when you can do it yourself. I wouldn't worry about the 100 miles. Get a heavy load and work it.
     
  4. magoo68

    magoo68 Road Train Member

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    Don’t worry about it too much . Remember when these things were new someone drove them from the factory to dealership bobtail or piggyback .
     
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  5. joey8686

    joey8686 Light Load Member

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    Thanks for the input. No dyno anywhere near me. I can break it in once I get my trailer, just gotta bobtail to get the trailer and hopefully that doesn’t hurt it any.
     
  6. pavrom

    pavrom Road Train Member

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    I drove my truck after rebuilding my cat from SLC to Chicago bobtail . Have 200k miles since , never had an issue
     
  7. joey8686

    joey8686 Light Load Member

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    Ok that’s good to know, puts my mind at ease a little.
     
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  8. CountryBumkin

    CountryBumkin Bobtail Member

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    Here's a video on the subject you may like. Start around the 8 minute mark to jump to the meat of the video.

     
    Last edited: Nov 1, 2020
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  9. jamespmack

    jamespmack Road Train Member

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    Sound like you have no choice. Just don't let it idle, and change speeds.
     
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  10. Milr72

    Milr72 Medium Load Member

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    Drive it like you stole it! :)
     
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  11. LameMule

    LameMule Road Train Member

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    Find a long steep grade.
     
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