How do you run a truck hard?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Reymann, Mar 14, 2020.

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  1. Reymann

    Reymann Bobtail Member

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    I was advised on this forum to run my Truck hard for a few days. To break in a inframe rebuild and eliminate a engine slobber that is currently going on.
    My normal rpm while going down the road is 1500 rpm in 10th gear. What do I need to do to "Run the truck hard"?
     
    Reymann, Mar 14, 2020
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  2. Dave1837

    Dave1837 Road Train Member

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    Leave it in 8th gear on the turnpike and set a cinderblock on the throttle for about 30 mins
     
    Dave1837, Mar 14, 2020
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  3. x1Heavy

    x1Heavy Road Train Member

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    You red line the #### thing.

    Find the worst hills and pull them all day.

    Pound her on bad roads with crumbling pavement and horrible bridges until something breaks.
     
    x1Heavy, Mar 14, 2020
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  4. AModelCat

    AModelCat Road Train Member

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    You want to maximize the load on the engine. Make it pull hard. Watch your EGT so you don't melt it down.
     
    AModelCat, Mar 14, 2020
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  5. McMahons Trucking

    McMahons Trucking Light Load Member

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    Pull the chicken stick half way. Drive until trailer tires almost ignite. Return stick to normal position.
     
    McMahons Trucking, Mar 14, 2020
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  6. Reymann

    Reymann Bobtail Member

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    It's my truck I need to run hard.
    I've got some modest 4% 1 mile hills on a local interstate. 10 th gear at 1500 gives me 65 mph, 1700 gives me 70 mph and sounds like its revving quite a bit.
    How about 9th gear at 2200 rpm on the hills.
    To get the " run hard," status.
     
    Reymann, Mar 14, 2020
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  7. Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Put 44K in the box, then come out here with me.
     
    Dave_in_AZ, Mar 14, 2020
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  8. spsauerland

    spsauerland Road Train Member

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    Good article from Steve Scott @IPD on breaking in rebuilt engines.
     

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    spsauerland, Mar 14, 2020
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  9. AModelCat

    AModelCat Road Train Member

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    RPM doesn't always equal load. It might actually be working the engine less hard by dropping a gear. Honestly, just put a heavy trailer behind the truck and go. JMO.
     
    AModelCat, Mar 14, 2020
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  10. lwlevens

    lwlevens Medium Load Member

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    Stay on the go pedal
     
    lwlevens, Mar 14, 2020
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