I have a Beneteau
but 2001 with a Yanmar
4JH3E with many, many hours on the clock. It was an ex Sunsail charter
that was sold to a Polish guy from whom I purchased the boat 5 years ago. Condition is good considering the lavish attention I have spent on it and the engine
has always been very reliable. When I bought the boat it had 4600 hours on the meter. When I next checked the hour meter some 3 years later (wasn't something I had felt necessary to do in the meantime), guess what? it was still on 4600 hours....
That is not the problem at hand. I have had the engine
well serviced annually by a Yanmar
authorised repairer, who this year had to replace the exhaust elbow
and a number of the cooling
system hoses (not cheap!) total cost including the service
A problem I have mentioned to them before has still not been resolved. When motoring for approx. 6-8 hours over a weekend (including 2-3 hours of motoring into a 18-22 knots headwind with 1.5-2m seas), I subsequently checked both the bilge
and under the engine compartment. Nothing was in the engine well itself, but there was seawater in the port side channel next to the aft port cabin
bulkhead (removed approx. 500ml using a kitchen baster) and another 650ml that had sloshed into the motor battery
compartment. I have checked all hoses and the prop shaft, but cannot locate where this might be coming from.
I have also found a mysterious green liquid that appeared in my bilge
. After taking up all the floorboards, I traced it as far back to the port side by the chart table seat. The amount is quite small, but evident nonetheless. There is nothing in any of the engine drain channels. I have emptied the seat contents and the hanging locker in the cabin
to see if something had spilt, but nothing identifiable. It is odourless and doesn't seem to taste of anything (from the microscopic dot I placed on my tongue).