Clark 4500HP 12 Cylinder Engine - Piston/Liner Replacement Pics

Discussion in 'Shiny Things' started by Hodakaguy, Mar 25, 2010.

  1. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Just got back from working on a 4500HP Clark 2 cycle, 12 Cylinder Natural Gas Fired Engine/Compressor Unit. We had to change out a couple cylinder liners, Pistons, Rods ect.

    I took a few pictures to share in case anyone else likes large industrial engines. :evil


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    Here's one of the Units, My co-worker standing in front of the cylinder heads taking some pics. You can see the three compressors that the 12 cylinder engine drives. The reciprocating motion of the crankshaft is transformed via cross heads into linear motion to drive the compressors. These compressors compress natural gas.


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    Taken from the top of the cat walk from one of the units, looking at the unit that's being worked on.


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    Cylinder heads. 6 Cylinders on each side. You can see the air intake manifolds for both banks.


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    Here's a shot of my ugly mug...:D


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    Here you can see the oil cooler along with some of the coolant/oil lines. This unit is massive!


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    Here Dean is standing in front of the mechanical oil pump, look at the size of the block on this bad boy :eek1


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    Here I'm standing in between two of the three double acting compressors that the engine drives. You can really see how big they are in this shot. On the ground you can see a cylinder head in the bottom left corner of the pic.


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    Here I'm standing next to a new chrome cylinder liner, we just finished prepping this liner for install.


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    Installing the new liner.


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    Looking into the block. You can see the intake and exhaust ports. A co-worker is cleaning inside the crank case, gives a good reference to the size of the crank.


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    Piston with the Master Rod attached.


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    Piston with the Link Rod attached. Only the master rod attaches to the crank shaft, the opposite link rod attaches directly to the master rod via a link pin.


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    Here the piston crown is separated from the skirt. The pistons are a 3 piece unit. Look at the size of the crank pin bearings!


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    New parts getting ready to be assembled. Master Rod with Hanger, Link Rod, Link Pin, Piston Pin ect.


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    Assembled piston on the piston stand.


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    Spare Turbo Chargers


    Thought you might like a look.

    Hodakaguy
    #1
    Te Hopo likes this.
  2. andruboz

    andruboz Serial overfiller

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    cool. got a .wav file of it running?
    #2
  3. fz6kd7

    fz6kd7 Long timer

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    pretty cool
    is that a compresor a gas distribution line? or something else
    just glad i wasn't the one in the engine block
    bet thats fun to start back up
    #3
  4. AKjeff

    AKjeff Long timer

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    Thanks for sharing those, I love big engines.
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  5. EvilGenius

    EvilGenius 1.5 Finger Discount

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    Whats the advantage of giant piston engines over a similarly rated turbine engine?
    #5
  6. Reryder

    Reryder Onward through the fog...

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    Nice job. Looks like they are cleaner than big diesels to work on.
    #6
  7. CGH

    CGH Polluting the ether

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    Very cool. :clap
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  8. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Sorry, no vid :cry

    Hodakaguy
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  9. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Yeah it compresses/pumps natural gas for a main line gas pipeline.

    Getting in the crank case of this engine is no problem at all, you have to be a lot more flexible on some of the smaller engines.

    Hodakaguy
    #9
  10. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Depends, Reciprocating engines will handle a wider range of differential, the diffenerence between the suction and discharge pressure on the unit. It's also more fuel efficient than a turbine. There are quite a few +'s and -'s to each, depending on where/what application they are going to be used in.

    Hodakaguy
    #10
  11. Anorak

    Anorak Woolf Barnato

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    Thanks for the photos. That's really cool. I'm still as fascinated by big machines as I was at six years old.
    #11
  12. Adam E

    Adam E halfway there

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    What is the RPM when it's operating?
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  13. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    300RPM

    Hodakaguy
    #13
  14. Barry

    Barry Just Beastly

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    That is flat bad assed !

    Very cool. How many days were you there for that job ? How many man hours does the book call for on that pup ? Why not a 4 stroke???

    Barry
    #14
  15. mmitchell57

    mmitchell57 Vulcan Halfbreed

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    You think I could borrow one of those "spare" turbo's for my bike? :lol3
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  16. debueller

    debueller Has a thing 4Fungirl

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    That is friggin' awesome, HG.

    That thing must be somewhere here in Warshington?
    #16
  17. Hodakaguy

    Hodakaguy NorthWest Adventure Rider

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    Yep, right here in good ol WA State. :thumb

    Hodakaguy
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  18. Motor31

    Motor31 Long timer

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    Is that a 2 or 4 cycle engine? Just curious as I saw no pix of valves. Would have loved to see pix of the old cylinders for comparison to say a diesel engine for discoloration since yours works on natural gas.
    #18
  19. AdvRdrWannaBe

    AdvRdrWannaBe Lets' go that way

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    Small world.

    I'm an estimator for a construction company that builds natural gas compressor stations. Though I've never seen a compressor apart like that, pretty cool.

    Greg
    #19
  20. P B G

    P B G Long timer

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    Re: motor31
    #20