Category «Engine»

Latest Thoughts on Diesel/Electric Propulsion

Some updated thoughts on diesel/electric propulsion…   According to the internet, more sailboaters are switching to electric propulsion. You will find “ground up” DIY systems from off-the-shelf components (thanks to the growing DIY electric vehicle movement) to full “turnkey” installation products.   Now, I am not about to debate electric vs diesel propulsion. But since …

Subfloor Lighting

Not quite a disco… but close. Having to pull up floors, hold a flashlight, and reach in to wrench on things is a perfect recipe for dropping items into the abyss that is the bilge. Now imagine doing that at sea with extra motion to throw you off. Presenting subfloor lighting using LED strips to …

Engine Exhaust “Tailpipe”…

…is IN! The final installation of the steering gear, led to final spotting of the engine exhaust port, which then led to the final exhaust hose, or, “tailpipe”. The hose made for wet exhaust systems is really heavy stuff. The walls are made of thick rubber reinforced with a special fabric and two spiral wires …

Another Grab Bag Weekend

Lots of little things done… no major tasks finished… Engine Exhaust Port With the steering gear and supporting framing installed, I was able to spot the engine exhaust port. With the boat being a center cockpit design, and the engine more amidships, finding the space to route the exhaust aft can be difficult. I have …

Lower Exhaust System

The lower exhaust system is in! Center cockpit designed sailboats with auxiliary propulsion engines amidships tend to share a common design constraint. That is, how to lead mechanical bits aft without interfering with the aft cabin living spaces. Example bits are the engine exhaust and rudder steering. Waterlift muffler with input hose from the engine room Here …

Exhausting Little Stuff

As usually happens this time of year, lots of work on little projects with nothing really to report on. I am still waiting for some parts to fully fit the exhaust system, but here is an update. This is the Vetus waterlift muffler strapped onto a small riser platform made of Coosa board. The riser …

Shaft Coupler Puller

For a while now, a temporary prop shaft, with coupler has been attached to the Aqua-Drive thrust bearing. Everything has been set and aligned. The mechanics under this part of the floor need to be finalized before the rest of the aft cabin framing can happen. This includes the engine waterlift muffler, plumbing and the …

Engine Exhaust Beginnings

This is a test fit of some engine wet exhaust bits. Turns out the space planned for these, and the aft bilge pump anti-siphon loops (previously installed) was a bit too cramped. So, the pump anti-siphon loops had to be relocated. Turns out the new space for these has better access for maintenance anyway, so …

Still More Engine Musings: DC Gensets

So, if you check boating forums on the Internet, this parallel hybrid stuff seems to be a hot topic of debate on the internet. One of the arguments against hybrids is cost. Example, I got a quote for the Beta60 and the Beta60 Hybrid, and the hybrid version was about 75% more expensive. Seems like …

More Engine Musings

Seems there have been more parallel hybrids coming on the marine engine scene. I just stumbled upon another. French marine engine maker Nanni Diesel. Their engines are based on Kubota, Toyota and other blocks. Their parallel hybrid approach is flywheel integrated rather than belt drive (as with the Beta Marine approach). The integrated flywheel approach makes for a more …