Originally Posted by Pikey Dave
Sounds like you might have some air in there somewhere.
Im curious now, are you suggesting your helm has no slop? From my reading on them and general consensus, there has to be some slop due to the design of the system. I.e the valve needs to switch over and a small build up of pressure to get things moving? Common seems to be 1-2" of wheel play as the way it is described.
I have tried other helms when mine was failing and they all had a little play in them, some worse than others....air perhaps in some/all?
I'm very confident there is no air in mine though, or at least as little as can be without a power system anyway. I purged probably circa 5-6 litres out each side before calling it good. I made up a large header tank above the helm and kept at least 1 litre in it at all times whilst I filled up each side. I actually borrowed the proper tools from clyde outboards to do the job and they now use my improvised header tank method!
To clarify how i charged mine-
I didn't call it good when I first seen oil coming out the ram, I pushed and pulled the motor while someone worked the helm until it felt solid and I seen no air coming out the clear tubes I had into a collector reservoir (clear bottle). At that stage I purged about 5-6 litres each side in total and called it good. I done maybe 2 litres, changed side and repeat a few times. Due to the clear hoses at all points you get to see when no air is going back/forth. I left it a few weeks after some use and repeated the process in a smaller scale and result was the same.
If you have a better way then happy to have a go?
I should say once in use and engine torque applied it does help, same can be said for cable.
Next time I am at the boat I'll check exactly the slop at the wheel as 2pm was a rough guide based on memory...maybe it isn't as bad!