Is this a crazy Sustainability choice? A two stroke outboard?
Vložit
- čas přidán 2. 07. 2024
- We are preparing for a first UK winter living aboard at anchor. Getting ashore has been a concern. Our ePropulsion electric outboard is great in many ways but has limited range & speed plus we probably won't get enough solar power to charge it.
So this is a radical; option . Is it a good one?
Our free Sustainable Sailing book is at: sustainablesailing.codeberg.p...
If you would like to support us then we have memberships or donations on Ko-Fi! at ko-fi.com/sustainablesailing/ (apart from a small card processing % we get all your support which is much better value than Patreon).
Or visit our shop at sustainablesailing.teemill.com/ for great hoodies, t-shirts and bags.
We are refitting a 1977 Rival 38 for a Sustainable Sailing retirement starting in Summer 2025. When we bought Vida in August 2019 she was in a very tired and damp condition with all original equipment and fittings (much of it not working). We have removed all the gas, diesel and paraffin equipment, and are installing all-electric (motor, cooking etc). More detail on our blog at sustainablesailing.net/
Socials:
Faceboook: / sustainsailing
Mastodon: mas.to/@SustainableSailing
#TwoStrokeEngine
#OutboardEngine
#sailing
I love a good 2 stroke outboard. Good power to weight ratio, and I think buying anything used is better for our environment than buying new, The process of manufacturing the new electric outboard might cause more carbon footprint than using a smokey 2 stroke! with a similar 10.5 foot RIB and a Yamaha 15 hp we got on plane with 3 people no problem.
Agree totally about buying used.
If this was generating a little more power I'm sure it would get us on the plane. Just debating whether it's worth the parts to rebuild and get the compression up to get closer to original power.
I'm sure the extra 1foot length makes it easier to climb out of the water hole onto the plane, no deck space or it would be our choice.
By choice I'd definitely go for a 15hp, same weight and size just makes sense.
Check to see if you have the correct propeller on an also the condition of it.
And if all is well there you can definitely look at getting another propeller with a shallower pitch, this will give you the low down grunt you need to get on plane two up😉
Thanks, this is very new to us. I've now heard that a couple of times. Wondering if it will be enough without tackling the big issue of its low compression (80psi).
@@SustainableSailing See what prop is on it now and what prop came from the factory. I agree that the prop may be holding you back.
The compression may be low due to the motor sitting for a long time and the rings getting gummed up with old oil. A good flogging up and down the river with some load on it will probably do it the world of good. I'd run a tank or two through it and then re-do the compression test and see what you get.
I've got a 40hp Yamaha 2-smoke on my boat, not what I would have chosen, but it came with the hull and it was cheap. Its pretty low maintenance for a 15 year old motor. I'd like a 4stroke, but for the amount I use it, over $10k(AU) for a replacement will buy a lot of fuel.
@@hoyks1 that price difference is critical for us.
Wondering about a longer ride to see if it clears things. There always is a balance between conflicting views eg should we change the impeller first.
Have you replaced the impeller? If the motor hasn't been run in years, the impeller blades will have become brittle and will break with very little use.
Not yet. I'm getting a good stream of cooling water and have only used it for test rides so far
You should definitely have the "tattletale" feed line checked and if necessary, the water pump impeller replaced. That is nowhere near enough water being pumped through the tattletale!
Thanks. It's hard to know if enough is enough.
@@SustainableSailing it should be a very steady stream at idle and under full power. Even at idle it should look like it is going to the restroom.
Ok, thanks we don't have that much, especially at idle. I'll get a new impeller and check all the tubes.
@@SustainableSailing Yeah if it isn't "peeing" it needs to be checked. Make sure you also check the tattletale feed line for obstructions. It can also get clogged by debris and here in Texas I've even seen mud wasps crawl into the tattletale feed line and plug them with mud. Also if the outboard hasn't had the impeller replaced within 2-3 years or has been sitting for that long or more it's best to be safe and just replace the impeller. I really enjoyed the video and interaction. Wishing you safe and blessed travels!!!
@itsjustdonkey777 thanks, very helpful. Fortunately we don't have mud wasps here, ordinary ones are bad enough 🤣🤣
Glad you enjoyed the video.