DSK wrote in message ...
Joe wrote:
For about 45 dollars you can send your oil sample to a company

Wow, $45? That's rather expensive, I get the same service from a local
company for about $20 per sample. We consider it mandatory to get a full
oil analysis once per year and keep the report in the log... BTW that
goes for all kinds of power machinery like compressors, not just engines.

After taking care of various commercial machinery, it struck me as very
slapdash the way most boat owners take care of their engines.


Yelp its down right laughable of some. And compaired to the US Navy
PMS many companies are put to shame.





I did a test on my gen set when I rebuilt it 5 years ago. Have many
hours now on it and Im starting to see soot. Think its just needs the
injectors rebuildt but... Im glad I have my old report to compare with
a new report.

Could be the injectors need adjusting, or it could be crud in the fuel.
You using 2mic filters?


I think they need new tips. Did not redo them when I rebuilt the
moter.

Why do you say crud in the fuel?

When a heavy load item like the AC or water heater kicks on you get a
little black soot on the water, almost like turbo lag.... but its not
turbo charged.
I was thinking a poor injection pattern due to washed out or fouled
tips.


Joe

Fresh Breezes- Doug King