There is a video that’s been popping up of a 80 or so, about 2000 vintage Lazzara crashing into a bulkhead in Marina del Rey, ca. the triton claims that the captain was “unable to reach the engine in time” and opted to crash into a sea wall. Yeah I know. You d think a yachting rag would have decent editors… https://www.instagram.com/reel/DMoAmKqPr0T/?igsh=bng1ZDk1NnlyaHlx these boats had MTUs (12V183s) and I m trying to understand how in case of an engine control failure (possible) neither the emergency shut off buttons not turning off the keys would actually shut down the engines.
I was on an Azimut one time with an open flybridge, came across from Bimini it was rough so running it from inside, came up on the bridge inside port everglades activated the micro commanders on FB, port engine went into forward and revved to 1500 rpms......takes a second or two to process what's going on, and then in a panic you need to find things.
Just guessing, but in the event of a major electrical fault, I don't think it's impossible that the only way left for shutting those puppies down is to push the stop solenoids manually - which obviously means directly on the engines.
Here's a theory. If Capt. or person at the wheel panicked and first, shut the keys off (which wouldn't shut it down), would the "engine stop" buttons still work? I have the same exact set up with engines and controls, but I can't remember if the engine shut offs will operate if the ignition keys are off?
You said she's powered by 183 MTUs. The very last version of that series was the semi-electronic TE93, but AFAIK they sold many more of the previous one (TE92), which was still 100% mechanical. No idea of what's fitted on this boat, but with the TE92 the stop solenoid is excited to stop, not to run. That's why I previously said that a major electrical fault could disable the remote stop (it's irrelevant whether triggered by the key or a button), requiring a trip to the e/r instead.