Stop Button Panel for Engine Perkins Prima m50

Siviero Attilio <attilio.siviero@...>

Hi everybody,
over the years the engine of my Amel Santorin #84-1993, Sisila, suffered always for the same inexplicable defect, which was essentially the difficulty to switch it off.
After various experts attempts to find the problem, the last electrician, in Rhodes, realized that the problem is simply the stop-button at the engine panel.
The fact is that apparently it works if the button is pushed only half way, not to the bottom. That is why it worked sometimes, when casually I pushed less, tired to push for minutes in the attempt to switch off the engine.
The electrician suggests to put an external button, since Perkins does not provide only part of the panel, but the whole panel as replacement of the original, which is ok for the rest, connecting the cables from the old button to the new one, any brand.
Does anybody knows if somewhere there is the possibility to have only parts of the panel, instead to replace the whole panel, or is there any other alternative? 
I saw other Santorin with same defect, some of them have an “emergency cord” inside the engine room, by which they pull something in the engine, to stop fuel flux, but the mechanic said that is not possible in my engine.
Any suggestion?

Attilio & Maria Siviero 
Amel Santorin#84 "Sisila"

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