Entre Terras e Maresvideo
Finalmente começamos a instalar o eixo Parte 1 T1.ep165
February 8, 2026 · 26 min · 577 views
What this video covers
Edgar installs the propulsion shaft on his Allegro Vivace sailboat, tackling a custom drivetrain layout that required a CV joint (junta homocinética) because the engine must sit horizontal rather than angled to match the shaft.▶ 4:10 Fabrication shop Dickman produced the shaft, bearing housing (mancal), and a flange adapting the CV joint to the motor shaft; the bearing mounts in a laminated structure inside the hull, with a Volvo-pattern shaft seal chosen for its compact footprint.▶ 5:09 The central problem in this session is a bronze bushing that refuses to seat in the shaft tunnel: welding the tunnel's internal support bracket earlier deformed the tube, tightening the bore.▶ 15:50 Edgar spends five to six hours grinding the 51 mm stainless-steel 316 tube with sandpaper, fabricates a wooden sanding tool sized to roughly 49–50 mm using a hole saw, and attempts repeated lubricated hammer-drives.▶ 23:12 The bushing stops about one centimeter short of full seating by the end of the session.▶ 24:00 Edgar confirms in a closing note that it eventually seated well enough to continue assembly, covered in Part 2.▶ 25:52 Welding internal tunnel fittings after final machining risks bore distortion that can block press-fit components.
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