MX13 with 500K on the clock, suggested maintenance items?

Discussion in 'Ask An Owner Operator' started by scoobertdoo, Jan 6, 2021.

  1. scoobertdoo

    scoobertdoo Road Train Member

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    Being more familiar with the ISX engines, I am not as up to snuff on the needs of a paccar MX 13. I know at 500K on the cummins you want to do a bottom end. So what should I do to make sure I dont have catastrophic failure on the road?

    BTW if some future person stumbles on this thread, the trick to get a MX13 home after a bad derate is apparently to unhook the speed sensor. I've not tried it, but was told this is what can save me.
     
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  3. 062

    062 Road Train Member

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  4. daf105paccar

    daf105paccar Road Train Member

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    Rollers on the camshaft.
     
    scoobertdoo Thanks this.
  5. runningman0661

    runningman0661 Road Train Member

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    How about reading the owners manual?
     
  6. scoobertdoo

    scoobertdoo Road Train Member

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    Does the Cummins owners manual talk about liners slipping and blowing a head gasket? Cam shaft wearing out early? Egr valve failing constantly?

    This is the info I am after. So I can carry a spare part to keep the truck running if I have a breakdown. Had been planning to carry an egr in the Cummins...
     
    Ruthless Thanks this.
  7. Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Wait. I have 735K on my ISX.:biggrin_25524:
     
  8. pushbroom

    pushbroom Road Train Member

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    There is no speed sensor. Speed comes from the ABS ecm. Unplug the ABS fuses and it will bypass the speed derate but not the torque/rpm derate.

    No reason to do a bottom end at 500k on a cummins. Mains/rods are only changed at inframes unless the engine has seen severe abuse.

    Get a top set done, EGR flush and air managment sensors cleaned. Could replace the DEF filter too. Check it over for exhaust/fuel/coolant leaks. Inspect the idlers and belts.
     
  9. 77fib77

    77fib77 Road Train Member

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    Lol. It's an fing bomb. Unm you roll the bearings?? Cough, cough.
     
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  10. Dave_in_AZ

    Dave_in_AZ Road Train Member

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    Negative ghost rider. Everyone has said it's a bomb since I had it. 400K miles ago. $400K give or take.
     
  11. 77fib77

    77fib77 Road Train Member

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    5 by 5. Mine spun a bearing at 740k. Bad day. It idled weird fir about a week. I'm like " when I get back to Jersey, I'm going to take it to a mechanic" never got there.
     
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