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Reassembly of two Yanmar 3YM30AE engines for a 44-foot catamaran project stalls due to missing components, including water pump spacers and fuel filter hardware.4:49 The owner attempts to bypass high-cost OEM parts by designing a custom alternator tensioning bracket using CAD software and ordering it through a custom metal fabrication service, SendCutSend, for approximately $27 compared to the $135 OEM price.10:37 Attempts to remove seized bolts from a damaged heat exchanger using penetrating oil, heat, and welding a nut onto the bolt remnants fail, necessitating professional machine shop intervention.9:55 Separately, the project involves finishing two vacuum-infused fiberglass hatches for a tramp ramp.0:29 After filling pinholes with polyester putty and applying Alexial primer, the owner polishes the original stainless steel hardware and installs the hatches using a 3D-printed drilling template.15:58 The tramp ramp installation remains pending until tracks are mounted and anchor rollers are modified.17:08

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