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Mechanical Engine/transmission conversion

Discussion in 'Technical Discussion' started by Northwind, Jan 15, 2017.

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  1. Northwind, Jan 15, 2017
    #1
    Northwind

    Northwind Member

    Joined:
    Dec 7, 2015
    Messages:
    33
    Location:
    Norfolk
    I am restoring an older USCG boat (several related post made on various topics). It is a twin engine diesel.

    The existing controls are mechanical. There is a telegraph that provides pneumatic control of the engine and gearbox. I am adding electric thrusters.

    I know pneumatic controls are reliable but they require a lot of maintenance.

    I want a fly-by-wire system. I'd like to be able to synchronize the engines. Warm them up out of gear. And, I am looking from some interlock protection for the gearbox against rapid switching. And, on a related but separate note, I want engine guages that report to the wheelhouse (currently only available in the engine room).

    Ultimately, I would like to add advanced controls (joystick) that will translate the joystick position into signals to the engines, gearboxes and thrusters.

    ZF has a unit designed to retrofit mechanical systems but they say their joystick and advanced systems won't work with this. Glendinning has a system that claims to do all this. I saw the glendinning system at a boat show. I did not have a lot of confidence in the mechanical link.

    Any advice and opinion appreciated.
  2. Pascal, Jan 15, 2017
    #2
    Pascal

    Pascal Senior Member

    Joined:
    Feb 29, 2008
    Messages:
    8,546
    Location:
    Miami, FL
    Again it would help if you d tell us the size of the boat and what engines

    Gauges can be duplicated to the helm, you ll need to run wires and/or hose if mechanical

    Pneumatic are pretty reliable once maintained and as long as you have a reliable source of air

    The glendining mechanical sync system is pretty bulletproof and very simple

    Joysticks and fly by wire are over rated.
  3. Lepke, Jan 21, 2017
    #3
    Lepke

    Lepke Member

    Joined:
    Dec 26, 2015
    Messages:
    123
    Location:
    US West Coast. Cruise NW Passage to Alaska.
    I have Kobelt air shifters and throttles about 45 years old. I've done very little maintenance and had no problems. They can be rebuilt almost forever. I have a standalone compressor with tank and an engine mounted compressor. I also have a 2nd tank in the flying bridge mainly so my air horn has plenty of air.
    I believe we're talking about the Fir, retired about 1990. Lighthouse tender and buoy tender active in the PNW.

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