Search results

  1. jviss

    Replace fuel stop cable with stop button

    That's not generally true. It is true for most of the smaller diesels in sailboats that are based on small tractor or generator diesels. But bigger ones, including the Volvo marine engines with common rail fuel injection require electrical power to run.
  2. jviss

    T3800 - Location of Macerator Pump?

    Thank you! I assume mine's pretty close to the tank. I don't have a quarter berth, the head is to port and aft; but the aft cabin bunk extends to port, under the cockpit and aft of the head. I haven't looked closely, but I think some panels may be removable, and might reveal the pump.
  3. jviss

    When is diesel fuel too old?

    Define "old."
  4. jviss

    When is diesel fuel too old?

    That's not entirely so. A small amount of water can be in solution in diesel, in the ppm range, and some can be in suspension as well. The water in suspension will eventually settle to the bottom.
  5. jviss

    When is diesel fuel too old?

    Is the above contradictory? If the water is non-soluble in the fuel, how can the fuel absorb it?
  6. jviss

    When is diesel fuel too old?

    Yea, I'll be sure to tell my buddy with the Grand Banks 43 Eastbay that he should pump out his 450 gallons of diesel at the end of the season and bring it home. :) Seriously, I do what works, and has worked in my experience, in my climate, for 21 years. I try to fill it close to full for...
  7. jviss

    When is diesel fuel too old?

    As long as you can keep the algae out, or whatever it is that grows in diesel tanks, and drain the water off before it gets to the injectors, you are fine.
  8. jviss

    When is diesel fuel too old?

    This is a funny topic for the obsessive-compulsive engineers among us. For example: in your car, do you always run it to empty before filling it? If not, then you are gradually diluting the original gas with new gas, but never entirely getting rid of the original gas - you're asymptotically...
  9. jviss

    When is diesel fuel too old?

    Wow, excellent post, thank you. I will have to keep you in my rolodex as the diesel expert!
  10. jviss

    Winterizing the Head Holding Tank

    That's a good question! It might just be habit, but I always lubricate rubber parts when I put things together, like engines, marine heads, SCUBA regulators, etc. Don't know if it helps, or is necessary, but it couldn't hurt. :) Things seem to seal better when they are lubricated. Also...
  11. jviss

    Winterizing the Head Holding Tank

    One thing I'd like to add, regarding this type of valve, is that they can dribble if there's insufficient back pressure. As a matter of fact, one that looks like it's no good when held in the hand, i.e., with a slight gap in the slit, can actually be fine with back pressure on it. Some head...
  12. jviss

    Winterizing the Head Holding Tank

    Please, Peggy, don't get into a twist over this. I do, indeed, respect your knowledge and experience, and if time and money were no object I would replace the joker valve at least annually. I did some research on this a while ago. Practical Sailor did an excellent technical review of joker...
  13. jviss

    Water system hoses and connectors

    I really like having an accumulator. I like that the pump doesn't have to run if someone rinses hands after going to the bathroom in the middle of the night. I also installed a pressure gauge to help when troubleshooting water system issues.
  14. jviss

    I left the lights on

    It would be much more efficient to use a 12VDC phone charger. My favorite is this one: Anker 30W Dual USB Car Charger (I think I have four of them!). It supports quick charging.
  15. jviss

    T3800 - Location of Macerator Pump?

    I considered that. Can't see any of the holding tank hose connections. I may someday remove some panels below to see what I can see.
  16. jviss

    Winterizing the Head Holding Tank

    According to this review, the Jabsco joker valve is superior: joker-valves-for-marine-heads
  17. jviss

    T3800 - Location of Macerator Pump?

    Yes, but the hose just disappears behind boat structure, and one can't see where it goes. Believe me, if it were easy to find the pump, I would have!
  18. jviss

    Winterizing the Head Holding Tank

    Ha! I heard that at an MIT graduation the valedictorian said "Four years ago I couldn't spell 'engineer,' and now I are one!" Yea, I'd like to see a show of hands of who changes the joker valve annually. Especially among "seasonal sailors."
  19. jviss

    T3800 - Location of Macerator Pump?

    The only part of the holding tank that I can view is the very top. To see any other part would require me to take the boat apart.
  20. jviss

    Winterizing the Head Holding Tank

    Peggy, I know how pumps work. My grandfather was an engineer, my father was an engineer, I'm an engineer, two of my kids are engineers (one Ph.D., my daughter is an architect). Technology runs in the family. I still don't buy it. I can see "inspect," or test, if there is an objective test of...