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OutBoard Steering
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Heres where we're going with the steering.
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My current steering system works fine and it survived a week long family vacation with lots of tubing behind the boat. But I am not totally satisfied with the setup. At wide open there is TOO much play in the linkage and the motor moves around too much for me. Also when the steering ram is fully extended there is a large amount of downward torque that can some times bend the ram down as much as an 1/8 of an inch.
I don't like the plate I had to install under the OB, it makes access to the hood latch very difficult and its just not standard enough for me.
So, I found this setup on the net and this is where I want to go with the steering. It took me a while to figure out what is going on here, but this is a really sweet setup. That lever on the left actually 'amplifies' the range of motion of the steering ram. Its been too many years since geometry and physics class to figure this out real quick, but after sketching on a pad for a while, I figured it out.
If the point where the ram is attached to the arm is 4 to 5 inches from the arm's pivot point and the spot where the attachment to the motor is about 8 inches, then. Moving the ram 8 inches will move the end of that arm about 12 inches.
This also has the advantage that there is no up, down or side to side torque on the ram, all of that is asborbed by the arm.
I have some 1/4 inch aluminum plate and some UHMW plastic that will become the arm and bearing for the new improved steering system.
I'll get started on that once I get the rear seating in the boat done.
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