Replacing the detroit diesel 6v92TA engine in mci bus. Sliding cradle in with a new holland tractor

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  • Опубліковано 30 жов 2024

КОМЕНТАРІ • 73

  • @nightsailor1
    @nightsailor1 8 місяців тому +19

    I am always impressed with the 'Big' work you will undertake.

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому +10

      The out of frame rebuild could have cost as much as $40,000 all said and done. 10k ish to swap in a used engine.

    • @grabasandwich
      @grabasandwich 8 місяців тому

      ​@@BusGreaseMonkeyHow much more roughly to repower with something more modern? Not knocking the Detroit's, just curious.

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому +8

      A lot more and not worth it.

    • @edwardantrobusjr2253
      @edwardantrobusjr2253 8 місяців тому +3

      ​​@@grabasandwichOne thing, a modern engine would require all of the gages on the dash to be replaced & rewired. Existing ones, wouldn't be compatible with the electronics on a modern engine. Then, the diesel exhaust fluid tank & system. The entire exhaust system. All together, probably 50 or 60k.

    • @LongIslandMopars
      @LongIslandMopars 8 місяців тому +2

      ​@@BusGreaseMonkeySad how the EPA has been trying to kill diesel. It's still the most efficient and effective way to move heavy vehicles.

  • @randallweatherdon881
    @randallweatherdon881 5 місяців тому +2

    Hey Guys, I’m not a mechanic, but I sure enjoy watching you guys put these buses back together. Thanks for the great content. RW

  • @tedhamilton2362
    @tedhamilton2362 8 місяців тому +1

    Good to see a budget 6v92TA brought back to service! Amazing tech considering the base engine architecture dates back to the 1930's!

  • @craigsowers8456
    @craigsowers8456 8 місяців тому +3

    Those rusty balls ... you sure this MCI wasn't once buried at a Civil War site ??? LOL Good job New Holland ... been with this channel so long I can remember when all this was done down the hill in the dirt ... so proud of how far you guys have come

  • @dennisreeves632
    @dennisreeves632 8 місяців тому +6

    I'll take a shade tree mechanic over an expert any day. Great video Scott. Always impressed with what you guys do.

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому +8

      We were definitely out in the shade of the trees on this one ;)

  • @davidhughes211
    @davidhughes211 8 місяців тому +2

    You had the engine on chains on forks all OK watching video.
    I was taught that metal to metal slides, metal to wood brakes.
    Enjoyed your videos keep up the good work.👍
    From the UK.

    • @road8248
      @road8248 8 місяців тому

      In Ireland we use wooden forks on our forklifts, and our train wheels.

  • @wk7060
    @wk7060 8 місяців тому +1

    The tractor did a nice job getting the engine back in. Not any extra wiggle room inside.

  • @KennaGreen
    @KennaGreen 8 місяців тому +2

    Nice sounding motor!

  • @alanpira-kq3yd
    @alanpira-kq3yd 8 місяців тому +2

    I used to drive a 6v92 in a 1980 eagle coach...awesome!

  • @dennisbranum719
    @dennisbranum719 8 місяців тому

    For our fleet of couches we had a metal cart for removing engines. Just raise the vehicle up and set it back down so that the engine rests on the cart then just roll the whole assembly out off of the engine mounting rails the way that the factory had intended. Total engine and transmission swaps in about 8 hours.

  • @mennoboon8037
    @mennoboon8037 8 місяців тому +2

    Nice job to swap all the good parts hope this engine does well

  • @pauleggert4639
    @pauleggert4639 8 місяців тому +3

    Could u fit a big boy like that into a smaller bus like "Lenny" ? Great Job Men !! Stay Safe !!👍😊

  • @brendanward2201
    @brendanward2201 8 місяців тому

    That tractor is a game changer for sure

  • @elmercoffmans4223
    @elmercoffmans4223 8 місяців тому +2

    Nice work Dr Detroit 👍😎✌️

  • @PaulWannenburg
    @PaulWannenburg 8 місяців тому

    Wow thats a big job Mr. Detroit

  • @BruceBergman
    @BruceBergman 8 місяців тому +1

    The "rotary Mufflers is very effective! 😊Holset turbo breaks up sound😊 2:47

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому +1

      My favorite muffler and a close second to resonators

  • @1toonhead
    @1toonhead 8 місяців тому

    Seeing how easy that tractor put the engine in I bet made you think you wished you had it years ago.

  • @Wayfarer001
    @Wayfarer001 8 місяців тому

    Damn that motor sounds good.
    I vaguely knew how a Detroit sounded before your I started watching your thing.
    I know now.
    Thanx.

  • @davidowen888
    @davidowen888 7 місяців тому

    The Heavy Work Specialist BGM 💪

  • @dougburnett2756
    @dougburnett2756 8 місяців тому

    I think i know where that coach came from. It looks like an old Loudon County commuter coach that made daily trips from Loudon County VA to downtown Wash DC.

  • @jinglebells1238
    @jinglebells1238 8 місяців тому +1

    Is it only your son in law helping you fix the buses around the shop Scott? Hope both of you stay healthy and safe including your wife as well.

  • @robertgriffin7569
    @robertgriffin7569 8 місяців тому

    Engine sounds great..you guy's made that look too easy, sliding it right in there.lol.

  • @tedhansen3846
    @tedhansen3846 8 місяців тому

    Ya'll do awesome work!

  • @komradkolonel
    @komradkolonel 8 місяців тому +1

    I know that some MCI buses like those that NJ Transit had/has were ordered with the 6V92TA but I but think it would be at least somewhat underpowered with that engine. I figure that the 8V92TA would have been a much better choice just due to having more torque. That 6V works OK in transit buses but those coaches are pretty heavy under full load. I haven't seen any figures but I imagine that the 8V would usually go longer between rebuilds vs the 6V.

  • @joebeach7759
    @joebeach7759 8 місяців тому +1

    I remember you saying what the blower did on these engines, but it's not what most people think it is. I know it's not a supercharger, but what is it?

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому +4

      On your 4 stoke engine the pistons travel up and down an extra time just to suck fresh air in and push exhaust out. The two stroke does everything in just one up and down but it can’t suck air in and push out the exhaust with the pistons because the piston stroke is used for compression to heat and cause the fuel to ignite then transfer the power from the explosion into the crank. The blower pushes the fresh air through the cylinder when the piston drops to the bottom. There are holes in the cylinder walls that the piston drops below and the blower air enters and exhaust valves open at the top of the cylinder to let the gases out. The valves close and the fresh air gets compressed on the piston’s way up again. One revolution of the crank every piston has fired. For stroke takes two revolutions for every piston to fire off. Up stroke down stroke does everything in a 2 stroke.

  • @donmoore7785
    @donmoore7785 8 місяців тому

    Very cool! Do it with New Holland.

  • @Jordendog
    @Jordendog 8 місяців тому +1

    I did not know these motors had blowers along with the turbo.

    • @sha1om
      @sha1om 8 місяців тому

      It’s a two stroke engine; it needs the blower to get air into the cylinders.

  • @timf6916
    @timf6916 8 місяців тому

    Good job

  • @Cheezwizzz
    @Cheezwizzz 8 місяців тому

    What is it about the sound of the Detroits? I can’t get enough 🧐

  • @tedhamilton2362
    @tedhamilton2362 8 місяців тому

    Any thoughts on a purpose-built wheeled cradle with levelers to remove/install engines?

  • @lloydrobinson7081
    @lloydrobinson7081 8 місяців тому

    keep the clips coming

  • @debbiericketts8406
    @debbiericketts8406 8 місяців тому +1

    I miss seeing your son. Where has he gone?

    • @RVsAndCoaches
      @RVsAndCoaches 8 місяців тому +1

      Back to Indiana, I believe.

  • @richardharris2061
    @richardharris2061 5 місяців тому

    That's is a nasty engine 🚒

  • @David-yy7lb
    @David-yy7lb 3 місяці тому

    I have a question I noticed the engine has a turbo and a supercharger that engine won't run right without either one?

  • @tbw357
    @tbw357 8 місяців тому +1

    Does anybody know what Tyler is doing these days? Haven't seen him in a while.

  • @Adam_Gray
    @Adam_Gray 8 місяців тому

    💪🏼

  • @pauleggert4639
    @pauleggert4639 8 місяців тому

    Y not reverse the trans mount bolt ,for easy insertion ?

  • @gersonhay984
    @gersonhay984 8 місяців тому +1

    I think of the movie SPEED.

  • @rasalas2x
    @rasalas2x 8 місяців тому

    Great videos as usual. However. I cannot express how quickly tragedy can happen with chain's wrapped around forks and tilting the forks down. I always mandated that c clamps on the forks be used to prevent the chains from sliding forward down and risking human body parts first and objects second. Cheap insurance.

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому

      We never tipped it until it was on the rails and ready to slide. Then we needed the slide to get it in.

  • @ovalwingnut
    @ovalwingnut 8 місяців тому

    Note to self: Never rear end a bus at speed.

  • @BruceBergman
    @BruceBergman 8 місяців тому

    Needs a Scotch Brite wheel for cleaning the exhaust gasket surface. 4:22

  • @ericgiroux320
    @ericgiroux320 8 місяців тому

    Ah, my BGM fix!

  • @rosspayne2235
    @rosspayne2235 5 місяців тому

    Getting your money's worth out of that tractor you guys use the crap out of it 😊

  • @jfree4513
    @jfree4513 8 місяців тому +1

    Yeet!

  • @jerrodbeck1799
    @jerrodbeck1799 8 місяців тому

    Watch out for those acorns…

  • @gregpintler4846
    @gregpintler4846 8 місяців тому

    Why do Buses need a Turbo and a supercharger ?

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому +1

      It’s a 2 stroke the blower is considered naturally aspirated. It needs it just to move the air in and exhaust out. Won’t run without it. The turbo increases the air. It’s not needed but gives better performance

    • @stanpatterson5033
      @stanpatterson5033 8 місяців тому +1

      The long answer (after Scott's explanation) is that in a 2-stroke design, you do not have the dedicated intake and exhaust strokes that a 4-stroke engine has. With a mere 2-stroke, it's hard to get a supply of fresh air into the cylinder before the compression stroke, and also after the power stroke, it's hard to get the burnt mixture exhausted completely before the piston is already on the upward compression stroke again.
      The blower (that you called a supercharger) makes a pressure through certain passages. When the piston in each cylinder drops below the ports in the cylinder liner, the power stroke has pretty much completed, and as the piston passes below those ports, the pressurized air begins to blow into and upward in the vacated cylinder. Simultaneously, the exhaust valves in the head, open. As the pressurized air from the blower pushes in through those ports, they perform 2 actions. One, they scavenge the dirty exhaust gases upward and toward, through, and out the exhaust, and refill the cylinder space with a supply of fresh air for the next cycle.
      Then, as the pistons begin traveling upward again and block off those ports in the liner, the admission of fresh air is halted to that particular cylinder while the compression and power strokes happen. During this time, other cylinders will drop down, be scavenged, and reset for their compression and power strokes.
      If the blower is not doing its job, the engine cannot function.
      Any Detroit 2-stroke engine can function with just a blower. The addition of a turbocharger, or multiple turbochargers, can improve the performance by giving the blower additional pressure to do the work of scavenging out the exhaust and really ramming in higher volumes of fresh air into the cylinders to be compressed. The injector can then admit higher volumes of fuel to work with the additional volume of hot, compressed fresh air, and you can then get more work out of each cylinder, equating to more power.
      A turbocharger relies on the hot exhaust gases being spewed out, to turn the "hot side", which directly turns the "cool side" which compresses fresh air. It is essentially free boost, because it uses the power of the escaping hot gases to generate more fresh air to be force-fed into the intake. Turbocharging helps in both 2-stroke and 4-stroke applications.
      Whereas, a Supercharger can be a more effective setup, a Supercharger is considered to be a parasitic draw, or a loss, robbing an amount of power directly from the engine in order to perform its function. Usually, a Supercharger will be belt-driven.
      In the case of Detroit Diesel engines, it is not considered as a "Supercharger", merely as a blower, because the engine drives it through a mechanical gear-driven linkage, and will not function without the blower working.
      Some other 2-stroke engines in the Detroit / GM Diesel family, use a highly modified turbocharger arrangement. Because the turbocharger cannot really provide much boost at lower engine speeds, engineers designed turbochargers that are directly driven by an over-riding clutch system at lower engine speeds to ensure that the turbocharger can provide the additional boost. When the engine speed picks up, the clutch is over-ridden, and the turbocharger receives enough exhaust gas output to work as a true turbocharger. As the engine speed drops off and exhaust output falls off, the clutch once again "picks up the slack" to keep the turbocharger compressing and contributing.

  • @stephenarthy6593
    @stephenarthy6593 8 місяців тому

    Why do you not steam clean the engine before installing back in the bus would make a cleaner working area

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому +4

      I’ll have the owner stop by your house on his way home to steam clean it in your front lawn. It’s an environmental disaster. I don’t have a water recycling system to collect the grease and oil.

  • @cupitosbornejr.7905
    @cupitosbornejr.7905 8 місяців тому

    Who stuffed dirty marbles in there

  • @jimk5645
    @jimk5645 8 місяців тому

    Remove the engine doors , takes five minutes and worth getting out of the way

  • @raenniella
    @raenniella 8 місяців тому

    Why not powerwash it clean why put it in a dirty engine

    • @BusGreaseMonkey
      @BusGreaseMonkey  8 місяців тому +3

      We did clean it. Did you not see the before and after. What did you want me to paint it and pretend like it got a rebuilt engine put in?