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  1. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Following up on one of the questions about if either engine can charge the batteries. . . . It looks like there is a 2 alternator, 3 battery isolator in the wiring diagram. So, It would seem that either engine can be the source of charging power to the engine and accessory batteries. The...
  2. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    This is a little hard to read, but here is the power wiring diagram of the boat that I got from CY tech support.. . . One difference I have noted is that I have only 1 Accessory battery rather than the 2 batteries shown.
  3. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    See my answers below . . . 1. Have you tried disconnecting all batteries except engine batteries? I have not, but it would be a good test of my theory on the helm power. I am wondering if I can/should just shut of the house and inverter batteries or actually disconnect them for the test...
  4. tpenfield

    23-24 foot vs 26-28 foot pros and cons?

    You should be able to Google boat specifications that give you the basic dimensions, weight, and deadrise at the transom (V-angle) Bigger engines can be more fuel efficient than smaller engines, if they are a better match for the boat. If you have a smaller engine, it will require you to use...
  5. tpenfield

    23-24 foot vs 26-28 foot pros and cons?

    I started at 24 feet and then went to 33 feet. I currently have my third power boat and it is also 33 feet. I/O powered . . . The 24 was single and the 33's are/were twin engines. For rough water handling, you want to have a hull that is 22˚ . . . a 20˚ hull will be a bit too flat and 18˚...
  6. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    One other thing of note . . . In my testing, I have noticed that if I turn off the Starboard engine battery there is a slight buzzing that comes from the area of the relays on the top of the engine. (I had the cowls off so I could hear where the noise was coming from). If I turn off the...
  7. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    @muc More replies below . . . Multiple MPI Engine Battery Information Batteries: Boats with multi‑engine MPI power packages require each engine be connected to its own battery. This ensures that the engine's Electronic Control Module (ECM) has a stable voltage source. - - > each engine has...
  8. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    @ Muc Here are the answers to the questions as best that I have them right now. I'll get more info over the next 1-2 days. From reading your posts, it appears that you have electronic steering, electronic throttles, vesselview4 and joystick. Is this correct? Yes Correct Can you post a picture...
  9. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Yes, @muc Thank you for posting the information. I will be reading through it. FWIW - The system warnings not seem to be hit or miss. We went to our favorite anchoring spot today. On the way over the engines had the warning. On the way back the engines said the were 'OK'. Once at the...
  10. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Quick Update: I tied the accessory battery and the starboard battery together. They were about 0.6 volts apart as I had suspected. That change made a difference, but it was short lived. I got a few starts of the engines with no warnings, but then the voltage warning returned. It does seem...
  11. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    No, all seven batteries '-' terminals are connected together with very thick cable (Yellow). It is just hard to see in the pictures. I will double check so as to eliminate possibilities. I am learning the wiring convention is this boat. . . Red = Power source voltage Gray = Switched Power...
  12. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Thinking 'out loud' here. . . If . . . (and it would not surprise me at all, based on the wiring design of this boat) . . . if the helm (and portions of the overall engine systems) were getting power from the accessory battery and the engines getting their power from their respective engine...
  13. tpenfield

    How to do new distributor timing on Mercruiser 7.4 Gen V?

    I believe the first 454's with MPI were the Gen 6 in 1996-97 (which I had 2 of them in my Formula) They used the MEFI-1 controller . . . Neanderthal by today's standards. Looks like your engine (distributor) is old school . . . no computer. As stated 8˚ BTDC and you are good to go. . . and ...
  14. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Thanks @muc for your insights, they are very helpful. I'll start checking the voltages at the helm. I agree that there are a couple of voltage sources and they are off by more than they should be, so something is not right with the power sources. Loosing steering would be a bad thing. I...
  15. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Yes he might 😄
  16. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Candy-gram for Mongo !
  17. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Yes, I think it is a VV thing not an engine thing.
  18. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    Yes, VesselView seems to be the problem. I noticed there is a ECM-like module under the dash panel that all sorts of wiring connects to. Maybe there is an issue up at the helm rather than the engine. The wiring is a rats nest. So maybe something at the helm has a bad connection. I’m still...
  19. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    When the engines are running the VesselView screens show 14 volts. Here is a picture while heading out of the harbor. Not sure if I have posted it previously. . . I am more comfortable that the voltages are adequate, seeing such on the Diacom screens. Just not sure why VesselView does not...
  20. tpenfield

    2016 Mercruiser 6.2 ECT - long beep every few minutes???

    We cannot. The Alt's are putting out 14+ volts and everything follows. If just on the solar power, the batteries are at 13.7 and the voltage to the PCM is within 0.25 volts. With ignition on . . . the batteries are in the 12.7-12.9 range and voltage at the PCM's are 12.5
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