Hi there,
We have been cruising south to Tacoma and away from wifi. Now back connected. Thanks for the most thoughtful responses. We continue to have periodic puffs of white smoke. In response to each of the insights that have been shared:
1. The sound is more a pop than a bang, I think.
2. We have a water trap for the fuel. The fuel comes from our main tank and we have several Racors.
3. The fuel tanks have been half full and lower on this trip, but we have seen the smoke when they are full, too.
4. We have burped the fuel supply this summer. That solved a flameout issue but not the puffs of smoke.
5. Marcello Velonosi has been our go to person on other issues. A great guy!!!
6. The unit stops for a half second and then reignites.
7. The unit is in our laz, in the aft section of our boat. That may be a long run for power, perhaps?
My summary and thinking:
1. Perhaps low voltage is the issue? Would this be caused by a voltage drop? If so, how would one test for the problem when we only see the smoke every several hours?
2. We will call Marcello. He may know us by our first names by now but he is very kind and courteous. And also very smart!
I will report back as soon as I can.
Many thanks to everyone who has helped us! We'd sure like to get this solved and behind us.
Cheers,
Don