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How do you run a truck hard?

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

Page 1 of 3
  1. Mar 14, 2020 #1
    Reymann

    Reymann Bobtail Member

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    Feb 21, 2018
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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
    Reymann, Mar 14, 2020
    #1
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  3. Mar 14, 2020 #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
    Dave1837, Mar 14, 2020
    #2
    mile marker 27, PE_T, Rideandrepair and 2 others Thank this.
  4. Mar 14, 2020 #3
    x1Heavy

    x1Heavy Road Train Member

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    White County, Arkansas
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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
    x1Heavy, Mar 14, 2020
    #3
    alds, mile marker 27 and Coffey Thank this.
  5. Mar 14, 2020 #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
    AModelCat, Mar 14, 2020
    #4
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  7. Mar 14, 2020 #5
    McMahons Trucking

    McMahons Trucking Light Load Member

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    Jul 4, 2018
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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
    McMahons Trucking, Mar 14, 2020
    #5
    PE_T, Rideandrepair, Bean Jr. and 1 other person Thank this.
  8. Mar 14, 2020 #6
    Reymann

    Reymann Bobtail Member

    8
    3
    Feb 21, 2018
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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
    Reymann, Mar 14, 2020
    #6
    Rideandrepair and Coffey Thank this.
  9. Mar 14, 2020 #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
    Dave_in_AZ, Mar 14, 2020
    #7
    PE_T, Rideandrepair, 650cat425 and 1 other person Thank this.
  10. Mar 14, 2020 #8
    spsauerland

    spsauerland Road Train Member

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    West Harrison, In
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    Good article from Steve Scott @IPD on breaking in rebuilt engines.
     

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    spsauerland, Mar 14, 2020
    spsauerland, Mar 14, 2020
    #8
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  11. Mar 14, 2020 #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
    AModelCat, Mar 14, 2020
    #9
    86scotty, Tb0n3, tj379 and 8 others Thank this.
  12. Mar 14, 2020 #10
    lwlevens

    lwlevens Medium Load Member

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    Feb 9, 2018
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    Stay on the go pedal
     
    lwlevens, Mar 14, 2020
    lwlevens, Mar 14, 2020
    #10
    Rideandrepair and Coffey Thank this.
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