2years ago I bought a 1990
beneteau 41S5. It was 30 years old and 2 prior owner,both lawyers. I have been working on it since. 3 weeks ago after coming back from the boatyard wherein I had "Dropped" almost $7000 on bottom job and all new
hull plumbing I noticed a
diesel smell. Checking under the
engine sure enough there was lotsa
diesel in the pan (maybe a pint). Detailed searching and checking revealed that the
fuel return line was leaking !!! It was leaking at a low point where
fuel was probably sitting for past 30 years!!!Of course it was european metric fittings on the line and not easily obtainable. After 3 days searching I finally was able to reuse the original fitting and make a new line. Older
boats typically have issues like this.