I suspect it hasn't occurred to most people that these things take the loading resisting the engine thrust. Nice short and to the point video with good examples of what can go wrong.
The bottom nut on our mounts keep getting loose. Would locktite be sufficient to hold them in? The top nuts are self locking ones so stay in position, which means we simply screw the bottom nut back up and no real alignment is required.
One Danish sailor advised drilling a hole through the top steel and rubber, joining those two together with a bolt, instead of relying on about to fail galvanization and saving on replacement costs. What's your take on that method?
1. You take away mass from the rubber. That changes the shore value. 2. You reduce the rubber/metal bonding surface area. 3. You add a hole, where corrosion can start. That’s the 3 reasons that pop up in my head.
