Boat Mechanics Archives - BoatHowTo https://boathowto.com/category/boat-mechanics/ Expert Knowledge for Your Boat Wed, 15 Apr 2026 05:10:19 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.2 https://mlaa1blzgyer.i.optimole.com/cb:f6xE.223/w:512/h:512/q:mauto/f:best/https://boathowto.com/wp-content/uploads/icon512-1.png Boat Mechanics Archives - BoatHowTo https://boathowto.com/category/boat-mechanics/ 32 32 Marine Diesel Engines: Flexible Shaft Couplings and the Grounding Question https://boathowto.com/ask-the-expert/marine-diesel-engines-flexible-shaft-couplings-and-the-grounding-question/ https://boathowto.com/ask-the-expert/marine-diesel-engines-flexible-shaft-couplings-and-the-grounding-question/#respond Wed, 15 Apr 2026 04:44:39 +0000 https://boathowto.com/?p=510392 This is a question that comes up more often than you might expect, and it touches on two things that matter enormously on a boat: corrosion protection and electrical grounding. The question is a simple one on the surface — if I install a synthetic flexible coupling between my transmission and my propeller shaft, have […]

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]]> https://boathowto.com/ask-the-expert/marine-diesel-engines-flexible-shaft-couplings-and-the-grounding-question/feed/ 0 Marine Diesel Engines: Why Aluminium Anodes on an Aluminium Sail Drive? https://boathowto.com/ask-the-expert/marine-diesel-engines-why-aluminium-anodes-on-an-aluminium-sail-drive/ https://boathowto.com/ask-the-expert/marine-diesel-engines-why-aluminium-anodes-on-an-aluminium-sail-drive/#respond Wed, 15 Apr 2026 04:44:14 +0000 https://boathowto.com/?p=510386 It is one of those questions that sounds almost contradictory the first time you hear it. Why would you protect an aluminium sail drive leg with an aluminium anode? Isn't the whole point of a sacrificial anode that it corrodes instead of your boat? The answer comes down to metallurgy, galvanic chemistry, and a few […]

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]]> https://boathowto.com/ask-the-expert/marine-diesel-engines-why-aluminium-anodes-on-an-aluminium-sail-drive/feed/ 0 Two-Shaft Reverse Transmission https://boathowto.com/boat-mechanics/two-shaft-reverse-transmission/ https://boathowto.com/boat-mechanics/two-shaft-reverse-transmission/#respond Mon, 30 Oct 2023 11:19:36 +0000 https://boathowto.com/?p=505963 Learn how a two-shaft reverse gear for boat engines works with our interactive 3D visualization:How does the Two-Shaft Boat Gearbox work?The input shaft, which is connected to the engine, always turns in the same direction. There are two gears on the input shaft and two gears on the output shaft.  On one shaft (in our case […]

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]]> https://boathowto.com/boat-mechanics/two-shaft-reverse-transmission/feed/ 0 Planetary Reverse Transmission https://boathowto.com/boat-mechanics/planetary-reverse-transmission/ https://boathowto.com/boat-mechanics/planetary-reverse-transmission/#respond Sat, 21 Oct 2023 14:01:12 +0000 https://boathowto.com/?p=505931 Learn how a planetary reverse transmission for boat engines works with our interactive 3D visualization: How does the Planetary Reverse Gear work?The input shaft (bronze color) is connected to the so-called sun gear in the center of the transmission. It is connected to the engine and always turning in the same direction. Two sets of planet gears […]

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