Sailing Catalpa · video

What this video covers

Replacing through-hull skin fittings and valves requires a dry fit of all components to ensure alignment before applying sealant.1:53 For the installation on the boat *Catalpa*, the crew uses Groko valves and seals the fittings with silicone.0:37 To prevent leaks, the threads on the valves are wrapped with Loctite thread-sealing tape.2:27 During the installation in the engine compartment, the crew identifies a clearance issue where a valve sits within 3mm of the heat exchange manifold.10:15 To gain a 10mm safety margin against engine vibration, the installer files down the end of the skin fitting and re-installs the assembly.10:38 The process involves one person holding the fitting steady from the outside with a spanner while the other tightens the valve from the inside.1:34 During the final tightening of a valve, a mounting stud snaps, requiring a future repair.13:11 The project concludes after successfully installing seven total through-hull fittings.16:29

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