Congrats on figuring it out, and bonus points for no harm done! Great that you were able to figure it out on your own as well - will give greater confidence the next time something mysterious happens.
I had lots of mysterious things happen for the first six months or so I owned my boat. Now...
Very cool & congrats! 33kW generator??? Or is that a wing engine?
What's the total anticipated weight (frame and panels)? Any concern with adding it up high? Please keep us posted on the project.
As a MechE I feel your pain... I spent a good amount of time pulling old unused wire on our old trawler. I love those 53's and am continuing to look hard at a 51 POC myself actually.
I'd start at the sources - battery chargers, house banks, and start banks. Figuring out where current was...
I hadn't heard that figure from you, it was from another forum I believe. Thanks for the corrective - I'd conclude that there is a parts & maintenance (and space) premium for the larger engines in addition to the marginal efficiency loss at 8-9kts. Overall I can certainly appreciate the case...
Do you have separate start batteries? Any sort of combiner switch (1 - 2 - both - off)? Battery charger is a good path to follow as well.
Almost certainly this is not a big problem, you've most likely blown a breaker or a fuse. It's a good opportunity to learn more about your DC system...
Good discussion! We also have a boat where the decision was made for us in the design phase. 2x120hp Lehmans don't get our CHB41 up on a plane, so it's either 2nmpg at 8.5kts or some number much less than that and a tremendous racket at 10kts.
One thing missing (maybe) in the discussion: I...
How do you know the alternator is dead?
You may be able to get an alternator shop to rebuild it for pretty small $$.
Alternatively you could source a replacement - but also consider upgrading depending on how the rest of your systems are configured. We dropped in a nice externally...
Very nice! Please more pics & details! I love the Hatteras LRCs, but struggle with the flybridge access (we have a big greyhound), and the trouble of finding a 60+' slip in SoCal. What are your plans for her?
You could certainly create a new bus - might as well if the existing is full. You can run all of the rf drain connections through this same wire ( other Raymarine instruments will often have RF drains as well).
Note: don't just connect the drain wire to the negative thinking that you'll be okay because both go to ground. It will likely create problems down the line (as it did for me). You want to run a separate circuit straight to the battery negative (I ran it to my main negative bus terminal) with...
Wonder if that stabilizing sail does anything? Looks really tiny, but I've no experience with such things. Shallow draft boat like that seems a good candidate for a Seakeeper or the like.
Happy to!
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I haven't gotten it installed yet - hopefully in the next few days. Will update here.
I don't know how much you'll gain by replacing all of the gauges - if they work I'd not touch them. Most likely you'd not want the same wiring for the ammeters anyway - it sends the entire alternator output through the gauge panels, which is not ideal.
3700 hours indicated. Yeah understand the sentiment, and it could be the correct approach. On the other hand, like everything I've encountered with Lehman 120's, they seem to warn you well in advance of an actual performance issue. I'd noticed diesel in the injector pump oil that seemed to be...