Saturday, 28 July 2012

Engine controls

The engine controls will be of traditional design with steel rods routed from controls at the steering position, along the back cabin ceiling to the engine throttle and gearbox.
The gears are to be changed by a push/pull handle on the starboard side and a "speed wheel" for the engine throttle on the port side.
Below is the rear bearing which will carry the rotating shaft of the speedwheel throttle control.
It is bolted solidly to the cabin roof as this shaft is sometimes swung on as the cabin is entered.

Further along the cabin ceiling the throttle control shaft will through a small hole drilled in the cabin framing.
We noticed that the shaft would pass directly under a light positioned over the table cupboard so this was adjusted by filling in the hole intended for the light with a blank which can be seen  just left of the roof prism frame. The light has been moved a few inches left where the wire can now be seen hanging out of it's ceiling hole. Hardly a gross error and it will be easy to hide when painting proceeds.

At the front end of the engine speed control shaft is this worm drive which will convert the rotational shaft movement to a vertical push and pull.. It is mounted directly over the engine speed lever on the governor.


  1. If you had to make an emergency stop, how long would it take to come back to idle using the wheel ?

    I am just use to levers where you just pull it back to idle.

    Thank you

    Bill Kelleher usa

  2. You need to plan ahead a bit with these boats mainly due to the boats weight, but (due to it's free running on bearings) the throttle control can be "spun" shut in a couple of seconds. The engine revs drop more slowly due to a fairly heavy flywheel.
    -Although Garner are more reponsive than most vintage engines.

    In a true emergency the gearbox is strong enough to go from forward to reverse at full power so you could get reverse in less than one second. I would not make a habit of this although I have done it once in the past.
    Regards A

    1. Andy,
      Thank you for the reply, I sure learn a lot of different ways of doing things reading blogs. :))

      Bill Kelleher