Rudder damage

At sea and in 24 kts wind our rudder(s) went sour. Of course in between two islands 3meter waves, 4knots current, ferry in the area, and so on.
What went wrong? The outer cable of our IMO morse control forced itself out of the nut that secures it into a bracket (positioning-rod) near the helm. The only motion of the rudders was done by the inner cable and therefore not powerful at all.
Fortunately we have twin diesels an the lack of rudders was not a big problem. We entered the nearest port and stayed there for a couple of days to fix it.

For those who are interested here how that went.
The system that holds the outer cable in place is quite funny. There is a hollow rod with an concentric bore at the end. At that end the nut is screwed on that also has an concentric bore. Fitting those over the outer cable metal pressed-on iron flange(the outer-cable itself is sort of superplastic) end, it secures it in place. For some reason the outer morse cable worked its way out of the nut and damaged the inner rim of the nut. Therefore there was not enough material (aluminum) left to withstand the enormous pressure of the rudders.
First I inserted a stainless steel clip to force the cable inside the rod to one side then when I tightent the nut again the remaining material of the rim inside the nut held the outer cable in check enough to withstand the wildest of left-right stearing . Mored .
Still I was not sure if it was enough for sailing.
Another idea came up.

A bit boring to read maybe!

At the local blacksmith they let me construct in stainless steel a device to keep the outer-cable
flange (pressed-on iron end) and the hollow-rod-nut bolted together.
When the inner cable is disconnected from the helm you can slide a 5cm washer with an 23mm hole over the rod that has the nut (with the concentric bore) at the end where the outer cable is secured.
In that washer i drilled 2 holes of 6mm to insert to 8cm bolts.
In order to tighten the cable into place I constructed 2 packman-like washers of 5 cm with a 14mm (the size of the plastic outer cable)slit (or packman mouth) and installed them opposite one another (so creating a round hole of 14mm).
Also in these washers i drilled the 6mm holes and slid them over the two 8cm bolts. Now I was able to tighten the outer cable flange into the positioning-rod.

This summer we are blessed with lots of wind and in 23 kts wind fully rigged at 6.8 kts of speed the rudders worked perfectly.
So if you have IMO morse control have a close look at that nut and maybe as a backup secure the outer morse cable this way too.
It is almost impossible for me to write about this stuff in a more animating way but if you need more explanation i'll be happy to answer your questions.
Juup