On Sat, 22 Mar 2008 06:15:07 -0400, "Roger Long"
wrote:

A good diesel mechanic up here told me the first question he asks
when a sailboat owner says they are having trouble with their diesel is, "Do
you have refrigeration?" Unless they have a separate generator, he knows
right where to start looking for the problem.

Why is that? Too much time at idle to charge batteries? If so, they
need a bigger alternator and/or larger battery bank.