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Cat c-15. 150 degree thermostat

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Cajuncowboy654, Jul 27, 2019.

  1. Jul 27, 2019 #1
    Cajuncowboy654

    Cajuncowboy654 Light Load Member

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    Recently bought a Pete with a c-15 ACERT . Previous owner told me they put 150 degree thermostats in. He gave me some 180 degree thermostats and said they never got around to changing them out.

    Are the 150s ok or should I swap them out?

    Truck never gets hotter than 150 degrees, is this keeping the engine too cool? Will it hurt anything?
     
    Cajuncowboy654, Jul 27, 2019
    Cajuncowboy654, Jul 27, 2019
    #1
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  3. Jul 27, 2019 #2
    tnevin225

    tnevin225 Road Train Member

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    Not sure that it would hurt anything on the motor but won't get very warm in the cab during winter.
     
    tnevin225, Jul 27, 2019
    tnevin225, Jul 27, 2019
    #2
  4. Jul 27, 2019 #3
    Cajuncowboy654

    Cajuncowboy654 Light Load Member

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    I'm in south Louisiana so winters aren't very cold, just want to make sure running that cool wont cause engine issues as every other cat I've ever run stayed near 180- 200
     
    Cajuncowboy654, Jul 27, 2019
    Cajuncowboy654, Jul 27, 2019
    #3
  5. Jul 27, 2019 #4
    swaan

    swaan Road Train Member

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    Put the proper stats in. Your not doing the engine any favors running it at 150 all the time . Stock is 192 cat stats
     
    swaan, Jul 27, 2019
    swaan, Jul 27, 2019
    #4
    Oxbow, spsauerland, AModelCat and 2 others Thank this.
  7. Jul 27, 2019 #5
    Cajuncowboy654

    Cajuncowboy654 Light Load Member

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    I guess the real question I have is, will it hurt anything to leave them alone?
     
    Cajuncowboy654, Jul 27, 2019
    Cajuncowboy654, Jul 27, 2019
    #5
  8. Jul 27, 2019 #6
    blairandgretchen

    blairandgretchen Road Train Member

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    What he said.^^^
     
    blairandgretchen, Jul 27, 2019
    blairandgretchen, Jul 27, 2019
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  9. Jul 27, 2019 #7
    WREN

    WREN Medium Load Member

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    Yes, its not good for cats to have lower stats in them. They are designed/engineered to run at higher temps for better performance
     
    WREN, Jul 27, 2019
    WREN, Jul 27, 2019
    #7
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  10. Jul 27, 2019 #8
    swaan

    swaan Road Train Member

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    Probley will . Condensation wont properly burn off in the engine.
    Combustion wont properly combust leading to soot buildup.
    Diesels love heat. They dont have spark plugs to ignite the mixture like a gasser!!

    Put the right stats in and quit trying to re engineer everything.
     
    swaan, Jul 27, 2019
    swaan, Jul 27, 2019
    #8
    Oxbow, spsauerland and AModelCat Thank this.
  11. Jul 27, 2019 #9
    Cajuncowboy654

    Cajuncowboy654 Light Load Member

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    Well I swapped them out because I had the coolant drained already but I didnt try to re engineer anything.

    The 150 thermostats were already in the truck when I bought i .
     
    Cajuncowboy654, Jul 27, 2019
    Cajuncowboy654, Jul 27, 2019
    #9
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  12. Jul 27, 2019 #10
    rollin coal

    rollin coal Road Train Member

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    I was told to always let my C15 warm to a minimum of 160* before taking off especially if under a load. If you do drive it cooler than that take it easy and dont romp on it until its warmed. The liners could drop because everything hasn't warmed/expanded to operating temp. You did the right thing I wouldn't have driven it until it had the right regulators in it. I'd actually be concerned as to why they really sold it if they had been driving it around like that....
     
    rollin coal, Jul 27, 2019
    rollin coal, Jul 27, 2019
    #10
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