Question about a Mack

Discussion in 'Ask An Owner Operator' started by HvyHal Gam3ing, May 11, 2021.

  1. HvyHal Gam3ing

    HvyHal Gam3ing Light Load Member

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    Does anyone know roughly if this truck is worth the asking price just at quick glance? Is this Mack model and the particular engine in it known for any major recurring issues? Is 2012 a good or bad year for the DEF systems? I mean I realize DEF is just bad all around but some do seem to be better than others. Any thoughts on this would be much appreciated. Thank you.

    2012 MACK PINNACLE CHU613 For Sale In Columbia, South Carolina | TruckPaper.com
     
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  3. Dino soar

    Dino soar Road Train Member

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    Get the one with the Maxi torque engine. Just don't get the dynatard.

    They had camshaft problems with them.

    The thermodyne might be a little small for what you're doing.

    When you find one that has this transmission you got it.

    gallery_3420_646_71750.jpg


    If you get this one let us know how you like it.

    student_shift_pattern.png
     
  4. BoxCarKidd

    BoxCarKidd Road Train Member

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    You can Google heavy truck sales in Covington Tn. Dons?
    There also used to be one in Memphis with lots of trucks.
    Search sights on companies with lots of trucks like them. You can get a rough idea of what it is worth real quick.
    No replacement for seeing them in person.
     
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  5. BoxCarKidd

    BoxCarKidd Road Train Member

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    That is funny! Was the Thermodyne the 237?
     
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  6. Joyce's Volvo

    Joyce's Volvo Light Load Member

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    I liked the old quadruplex, you always had the right gear when you needed it. Just unhandy shifting the compound through the steering wheel. Moved lots of big iron with it , 1967 R-600 250hp quadruplex 44 Mack rears , slow but sure. Top unladen speed 62 mph but , I got there and back. Gee whiz that other shift pattern favors a 1000 piece puzzle , not sure if I got enough time left to master that?
     
  7. BoxCarKidd

    BoxCarKidd Road Train Member

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    In parking lot trailing ( that was one lap around the the parking lot with someone that could shift it ) I was told if you ever miss that shift you will never get it in any gear. Me myself and I thought B/S. I will get it in some gear.
    Stopped at the end of the interstate ramp and started from the beginning.
     
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  8. Socal Xpress

    Socal Xpress Road Train Member

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    So the Mp8 engine is basically a Volvo D13.

    Injector cups are a known issue. 11-13 are problematic with the emissions issues.
    I would check to see if the venturi tube has been updated along with the delta p sensor. Typically they come unpainted and will be black. But if it's still red like the rest of the engine that's gonna be about 500ish just in parts alone.

    Other known issue is oil cooler cover has been updated. If you start to see a leak by the egr cooler more then likely you will need that done at some point.

    Double idler gear failure .... don't see thus discussed much but it can happen at any mileage. My d13 made it to 1.34 million miles before failure but I was also doing 12.5k oil changes and had zero damage to the mains and rod bearings. ( sustained high oil temps seem to be the culprit in the demise of the double idler gear roller bearings )
     
    Last edited: May 11, 2021
  9. JSanborn103

    JSanborn103 Light Load Member

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    What truck is that 2nd image from?
     
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  10. HvyHal Gam3ing

    HvyHal Gam3ing Light Load Member

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    I'm pretty sure that's a made up gear pattern. LOL
     
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  11. Dino soar

    Dino soar Road Train Member

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    I think the Econodyne was the 237 or the Maxidyne? @Brettj3876 probably knows.

    I think the thermodyne was somewhere around 175 horsepower, lol. They were in the B model Macks.

    Is that the quadruplex that I posted? Mack had a lot of really cool heavy duty compound Transmissions.

    They said it's from a three stick Kenworth. I don't know why they have it shown like that but apparently one is a main shifter one is a high low and one is a splitter.

    Watch this guy shift it! That's insane!

     
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