Well, we (actually the owner) finally finished up the "Noella Mae" this week. We launched on Feb 18, did a final "in the water alignment", got everything "tight-tight" as to the mounts and coupling, did a thorough once-over, and went for a very hard ride. Weather was good, we (3 fat guys w/ tools) topped off the fuel, filled the bait tank and after about 45 minutes of easy running, we put the pedal to the metal. Tachs climbed to 3620 on one engine and 3660 on the other and 29-29.9K's was what she wrote on the GPS in various directions. No-Load RPM on the Yanmar tach was 3720-3760 RPM so we knew these engines were quite a bit under propped. I did not strobe the tach at this point (next week), but already know we are at least 230-250 RPM over rated. GOOD for this stage of the repower project. Since the Yanmar tachs CANNOT be adjusted, all we can do is get a DEVIATION "tach card", so to say...
Boat ran 100% flawless, quiet and smoooooooooooth... Our shaft seals ran "cool" to the touch and maybe saw two drops of water, total. Tranny temps stayed under 150°F, and everything else was as it should be. Love those Yanmar 4LHA's !! |
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Over the last two months or so, we built custom fish drop-in boxes (very light/ Divinycell core), and the owner finished up all, or most, of the electrical / house and electronics, and got the engine & boat ship-shape overall. We feel we could not have done a better job and I think the owner agreed. But then again, our base motto is, "there is always room for improvement".............
Tony / Seaboard Marine |
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