MKT The Katy Coach that keeps me busy

r_i_straw Apr 1, 2024

  1. HemiAdda2d

    HemiAdda2d Staff Member TrainBoard Supporter

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    Excellent description of how the suspension interacts with the car and track! I had no idea how it all works.
     
  2. r_i_straw

    r_i_straw Mostly N Scale Staff Member

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    Ahh. Back in revenue service again. Bringing up the "Caboose" position at the end of the train ready for the weekend excursions.
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    Hytec, Hardcoaler, BoxcabE50 and 4 others like this.
  3. Kurt Moose

    Kurt Moose TrainBoard Member

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    Excellent-pat on the back to everyone who got her up and rolling again!!

    (y)(y)(y)
     
    Hytec, Hardcoaler, Doug Gosha and 2 others like this.
  4. Doug Gosha

    Doug Gosha TrainBoard Member

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    Here, this is closer:
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    :D

    Doug
     
    Hytec, Kurt Moose, Hardcoaler and 3 others like this.
  5. r_i_straw

    r_i_straw Mostly N Scale Staff Member

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    Spent a bit of time working on the diesel generator under the car. The diesel is a four cylinder, air cooled DEUTZ model. First you have to roll the generator cabinet out from under the car on Waukesha style outriggers. There are wheels attached to the cabinet that roll in tracks on top of the outriggers. You can see the wheels on top of the outrigger in this image. The muffler seen to the left has to be detached first.
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    The flexible pipe connected to the exhaust manifold had broken loose again. The first time I attempted to repair it, a 3 inch piece of exhaust coupling was jammed into the flexible pipe and into the manifold flange, held in place by sheet metal screws. That lasted a few years but then started leaking real bad. The exhaust soot got sucked into the cooling air and clogged up the fins on the cylinder heads. This time we welded the pipe to the flange and reassembled it. See how long that lasts. The soot on the cylinder fins was causing the engine to overheat and shut down. Blew all that out with a power washer and it does not overheat now.
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    The next project was to move the oil bath air cleaner assembly to the outside of the cabinet so that the oil can be changed periodically without having to roll the entire cabinet out on the outriggers. Here the air filter has been removed and a piece of 2.5 inch hose is attaced to the intake manifold and extends out the side.
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    The hose has to have a coupling in the middle to break apart so that when the cabinet has to be rolled out, it does not interfere with the cabinet wheel track bracket seen on the left. There is a cut in the hose between the two hose clamps. A frame to create a rock shield for protecting the air filter will have panels bolted to it eventually. The air intake is at the turbine looking thing. The oil pan that the air bubbles up through is clipped onto the bottom of the assembly. This pan has to be removed periodically so that the oil can be changed. The intake air coming through the turbine blades swirls around in a vortex chamber dropping the larger dust particles into the yellow cup below it. That also has to be emptied. In this shot, the cabinet is rolled back into place where it can now stay when the air filter needs servicing.
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    Kurt Moose, Tad, gmorider and 4 others like this.
  6. gmorider

    gmorider TrainBoard Member

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    Wow!
     
    BNSF FAN and Doug Gosha like this.
  7. r_i_straw

    r_i_straw Mostly N Scale Staff Member

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    Here we are remounting the air cleaner and rock shield. We cleaned the shield up of all the rust, "pickled" it in phosphoric acid to give it an anti-rust coating that is formed by phosphate conversion or "passivation" to prevent iron oxidation by means of the Parkerization process. (That was a mouth full.) Then primed and painted it before putting Humpty Dumpty back together again. We are working on getting some vinyl letters cut to replace the red paint. The Texas sun does a number on most red paints. Me and my white painters pants again.
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