CS30 Throttle control routing

[Dan Paluzzi]

originally posted by peterrutland

my throtle control broke today, and have to replace it etc. The existing
routing from the pedestel, along the outside wall of the 1/4 birth above the
fuel tank, then under the 1/4 birth towards the engine sems to produce a tight
"s" turn just before the engine, and I wondered if there was any sense in trying
to find a less restrictive route. I can't think of one, but thought I would ask,
as the route seems a bit tight.

[Dan Paluzzi]

originally posted by Charlie

Is the S-turn close to the engine, or back under the Q-berth? I think mine is routed above the engine mount, otherwise it would be a tight turn to get up to the bracket. I don’t remember any tight turns at the engine or under the Q-berth.

I think the tightest turns on my CS30 are at the bottom of the pedestal and at the bulkhead where it goes into the locker. I’ve replaced 2 throttle cables, both broke at the upper end right where the end fitting is swaged onto the inner wire. I don’t think it is due to drag caused by any tight turns, but by the repeated bending of the wire at that point because of the way the control mechanism in the pedestal is designed.

The Teleflex cable has a bend radius spec, if you want to check it out. The turns under the Q-berth at the engine end are pretty wide on my CS30. If they aren’t on yours, the cables may be too short. I think my cables are 9’ shifter and 11’ throttle, but I’d have to check the paperwork to be certain. The hole from the locker into the Q-berth is near the hull, so the cables come forward above the fuel tank, then make a turn and lie against the bulkhead to the galley and go through the hole perpendicular to the bulkhead to the Q-berth. Then they make turns to go forward.

Charlie
CS30 “Sprite” 4413

[Dan Paluzzi]

originally posted by peterrutland

Charlie:

Thank you for your reply.

It sounds like the routing you have is the same as mine. The s turn I was referring to was close to the engine after it enters the Q birth area from the locker, but mostly under the Q birth. I could feel movement in the cable up to the place where it penetrates the Q birth area from the locker so my guess was that I might have a bit of tight situation under the Q birth. The cable curves around under the Q birth near the shaft seal to just above the transmission where it is guided to the throttle. Before the transmission, my guess is that the diameter of the curve is about 9 or 10 inches, which looked a bit tight. But I guess from what you have just said that I have some surprises ahead of me. I will ask the supplier of the cable what the minimum curve data is. Thank you for your reply and perhaps the deal is that the cable should be longer, not the route.

Regards, Peter