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Expeditor with a 50 series detroit

Discussion in 'Freightliner Forum' started by hyoutputt, May 18, 2014.

  1. May 18, 2014 #1
    hyoutputt

    hyoutputt Bobtail Member

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    Jun 27, 2013
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    What can you tell me about these engines? I would like the good bad and the ugly. I would use it to tow a 12000lbs 5th wheel. The grandkids and dogs don't fit in the crew cab dually anymore. The expeditors seem to larger sleepers. The truck has a 10sp trans. axle ratio is unknown. It currently has a 24ft box on it. Thank you for your time.
     
    hyoutputt, May 18, 2014
    hyoutputt, May 18, 2014
    #1
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  3. May 18, 2014 #2
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    I don't know much about them other than they are 4 cylinder engines, not sure about ECMs or anything else for that matter, they started making them in 93. The John Deere engines from farm tractors in the 60'sto early 70s had done the same thing with a 404 6 cylinder and a 270 cubic inch 4 cylinder using the same bore and stroke, they actually had gasoline and LP gas engines with smaller displacement where they did the same.

    4 cylinder engines from Deere used a counter rotating balance assembly under the crank in the oil pan.

    I was interested in any replies myself.
     
    25(2)+2, May 18, 2014
    25(2)+2, May 18, 2014
    #2
  4. May 18, 2014 #3
    hyoutputt

    hyoutputt Bobtail Member

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    Jun 27, 2013
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    Thank you for the reply. I've been doing some research and it looks like it's a 12.7 60 series with 2 cylinders cut off, I read this during my research. Used mainly in city buses and business class applications. I'm looking for someone that has actually drove one OTR and any maintenance recommendations they may have. I hate sitting on the side of the road like everybody else that runs the interstates.
     
    hyoutputt, May 18, 2014
    hyoutputt, May 18, 2014
    #3
  5. May 18, 2014 #4
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    I've seen a few 4 cylinder engines, but nothing in what you are talking. The company has a 2006 box truck with a pre Acert C-7 ,but that is a six cylinder as are the Cummins down to the 5.9 liters in older pickups and some farm engines. A couple of guys I knew long ago had a 2 ton truck with a 4 cylinder Cat in it, but that was a smaller rig.

    The Series 50 would have competed with the 8.3 Cummins and the 3126 Cat. It's getting some age on it, and if electrical parts aren't the same as the 12.7, it might be a hard thing to keep running because of availability of parts. I would think they would have had to balance it something like everyone else has had to.
     
    25(2)+2, May 18, 2014
    25(2)+2, May 18, 2014
    #4
  7. May 19, 2014 #5
    freightlinerman

    freightlinerman Road Train Member

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    The Series 50 is not a bad engine. I don't know what type of fuel mileage you will get, but from what I've heard in a transit bus application they can around 500k miles out of them before a rebuild. It is essentially a Series 60, they look identical, but minus two cylinders. Being a 4 cylinder, lots of vibration. Make sure you change on the dampener. As far as power goes, they are okay. I drove them in transit buses, they did okay. They are a reliable engine. But longevity I couldn't really give you much information, as I'm basing what I told you off of one person.
     
    freightlinerman, May 19, 2014
    freightlinerman, May 19, 2014
    #5
  8. Jun 6, 2014 #6
    Mooose

    Mooose Light Load Member

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    Apr 13, 2014
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    I think it would be a load running highway speeds, transit service although difficult is stop and go service at lower speeds I would really really be thinking hard about the wind resistance and grades your going to encounter. I'm going to tell you first hand I have 4 Freightliners 3 of them running various versions of the infamous CAT 3126 (6cylinder) from 190 hp to a chipped 360 hp and they do not appreciate wind resistance and grades with trailers behind them, you can change gear ratios and what ever you want, there is a trade off for everything. Please!!! Do your self a favor, if you are seriously going to run miles buy more truck than you need!! Yes maybe the mileage will suffer but!! When your pulling a long grade in the heat and that motor is maxed that loss of fuel mileage on more truck than need isn't going to seem bad. I have lots of experience trying to make a small motor work like the big boys and I'm telling you it's a waste of money!! I love my Freightliners but you won't be happy trust me. If you like Detroits get a 60 series. I learned the hard way, and finally added an Argosy with the Detroit 60 12.7, cruise all day long, zero issues with grades, wind resistance and the truck will last forever working for me, because it's never really working!
     
    Mooose, Jun 6, 2014
    Mooose, Jun 6, 2014
    #6
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