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The host of a 44-foot catamaran refit project installs two rebuilt engines and repairs multiple hull penetrations to prepare the vessel for a 700-mile transit.0:58 To reduce the number of through-hulls, the host identifies existing plumbing, removes redundant plastic skin fittings, and patches the holes using beveled fiberglass laminate.3:13 For depth and speed sensing, the host replaces multiple legacy through-hull transducers with a single Airmar UDST sensor and an Airmar P79 internal-mount transducer, which sits in a liquid-filled reservoir inside the hull.13:06 Using a crane, the host lowers the engines into the hulls and installs stainless steel, polyurethane-bushed engine mounts from Oceanic Innovations.9:33 Alignment is finalized using a dial indicator and feeler gauges to ensure the engine flanges remain parallel to the shafts.19:09 The host also fabricates custom backing plates for new flush-mount through-hulls by vacuum-bagging 10 layers of 1708 fiberglass cloth with epoxy.4:53

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