Originally Posted by Ex-Calif
I reckon all this kit is still cheaper than 1 full professional diesel overhaul
for a sub-30 foot boat.
Electric is interesting but it's not there yet for me.You have to have too much solar
and too many batteries to get the same or less utility.
- 15hp electric start outboard & 10amp generator
control kit - $500(?)
- 400W solar
2000 - $1200
$5,500 is just the parts
bill for a Volvo
Originally Posted by Kelsea
Electric is there for under 30 feet. I've been sailing for 56 years and if I was coming through the under 30 foot stage, I'd go electric and I'd find a way to pay for it. Some great options now.
Motor sailing with no noise
= 10+ degrees higher pointing, no smell, no bad fuel from lack of use (we're sailors). There are no negatives after initial cost and we all motor or motorsail so a much more enjoyable and quiet ride.
I covered electric in my first post. For on and off the dock
it is a good option. For weeklong cruising I don't think it is there yet.
A guy in my club converted his Maxi
to electric. 2Kw motor. Built a superstructure for solar and but 100's of kilos of battery
in the engine bay. He gets 2 hours range. On one of his first outings the superstructure broke and the welders were in fixing it. He reports 2 days to charge the batteries.
Even one of our most active members (Noelex?) converted his boat and showed a trip to NYC
where he had to fire up the Hondagen towards the end of the trip.
Talking electric is a big hijack to the outboard thread but I suppose it is inevitable for the discussion to go there.
My point to this thread was about those folks agonizing about the diesel overhaul on a sub-30 footer. I would not take a diesel out that was working fine but I probably wouldn't invest $10-$12k in overhauling a sub-20hp 30 y/o diesel.
OK - While I am at it...
Out board and parts, $4000, and a life of 2000 hours in the most perfect of conditions. A resale of 1/4 the cost. Roughly $2/hour over the life of the engine.
Diesel, $9000 (with new gear box), and a life of 10,000 hours with proper maintainance. A resale value in the boat of about half. Roughly 90 cents an hour over the life of the engine.
We can argue these numbers. I put ~100-200 hours a year on my engine - sub-30 footer weekends and vacations. I won't get 10-20 years out of an outboard and I won't get 50-100 years out of a diesel.
Most of the diesel failures I have seen or read about are corrosion
in the aft valve seats and water
system failures (heads gaskets, elbows etc.) - these are time based failures not hour based failures. hardware
failures are rare (broken crank, rod, valve etc.) - At 10 years diesels are getting dodgy.
So let's do a 10 year comparision and presume the outboard lasts 5 years.
$10k for diesel = $2.73 per day
$4k + $2.5k = $1.78 per day and I get a new engine in 5 years.
Also don't know what you mean about resale value - engine resale or boat resale?
Of course everyone can do their numbers and roll their dice. Someone will say their diesel lasted 30 years and only needed overhaul because he didn't like the paint
color. My diesel was overhauled at about 23 years. I can't vouch for the quality of the overhaul (or if there was a previous one) but it failed 5 years later due to compression
loss in the aft cylinder. Often accessories are not overhauled either. Nothing worse than getting an overhaul and in a year changing the water
pump, another year changing the fuel control, another year the alternator
, yada, yada yada...
The heat exchanger
on my diesel is failed - Volvo
wants $2500 - WTF? I can buy the Yamaha for that...
A guy offered me $800 sight unseen for one of my heads (I have 2) - I didn't do the deal because of corrosion
pitting and I didn't want to give the guy a bad deal. I can't imagine what Volvo wants for a head
- actually the guy indicated they are not obtainable.