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House Bank vs. Engine Start
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Kent,
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Thanks I will reach out to him, it’s not too far for a day sail. Best, Mark and Jennifer S/V It’s Good SM #105 On May 24, 2021, at 3:41 PM, karkauai via groups.io <karkauai@...> wrote:
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Hi Mark, I had a lot of work done at Deltaville Boatyard between 2010 and 2016, including the isolated bonding system for the new Yanmar I had installed in Puerto Rico in 2015. That electrician has moved on (not sure where), but the yard has always gotten the job done right, although at a price. You might call Keith Ruse ( keith@...; (804) 776-9812 and ask if they have a new electrician who knows Amels. He loves working on Amels, and tried for a while to be a US certified Amel facility...they never even replied, even after I wrote them to recommend him. If you contact him, tell him I said hi. Kent SM 243 Kristy -- Kent & Iris KRISTY
SM243 |
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Bill and Bill,
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I completely agree. I already discovered the bonding straps that had been cut and have the new copper to run down to the bilge and will have to run new bonding wires because they were cut short. I’m currently for the summer in the lower Chesapeake Bay, Gloucester Point. Don’t know of any electricians here that are familiar with Amel’s. I may need to check either Delta illegal or Annapolis. Do you know of any around the Chesapeake? I have already been ripping out all of the left over wiring from the nav equipment replacement... he went with Ray Marine, instead of B&G which I wasn’t impressed with. Thanks everyone, now to get the electrician! Best, Mark Garver S/V It’s Good SM #105 On May 21, 2021, at 4:40 PM, Bill Kinney <cruisingconsulting@...> wrote:
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Bill Kinney
Mark,
Echoing Bill Rouse's comments... In an Amel with standard wiring, the connection of shore power would have nothing what ever to do with the engine starting--or not. Also, in a boat with Amel standard wiring, the state of the 24 Volt system is not at all connected with the ability of the engine to start, or to run. Based on your description of the symptoms you observe, it would seem your wring has been changed in significant ways. Without knowing HOW your system has been changed, it is virtually impossible to offer specific advice. I think you are probably right to be concerned that things are not as they should be, but without knowing how your batteries and engine are wired I am not sure how we can help remotely. Are you located in a place you can get in contact with a marine electrician who is familiar with Amel systems? Bill Kinney SM160, Harmonie Hollywood, FL |
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Bill,
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The PO replaced with a brand new Yanmar prior to our purchase. The house bank had multiple failed or weak batteries, wouldn’t maintain a charge although we had been a marina mostly. Of course before learning about running the generator when using the bow thruster I am sure we had taken a toll on them. Engine would start while connected to shore power, me starting it thinking I had turned shore power off. The next day we were departing and o disconnected shore power tried to start the motor and it would start for a second then stop nearly immediately. I also don’t have the switch that some seem to have on their SM’s to cut off the main bank. I do have a switch in the port locker but didn’t try that before replacing the house bank. I just worry about having this happen somewhere at anchor and having to row! Mark Garver S/V It’s Good SM #105 On May 20, 2021, at 11:31 AM, CW Bill Rouse <brouse@...> wrote:
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Mark, SM 105 was repowered with a different main engine. I am not sure who did it, but this is probably one source of your problems. I believe that some serious wiring changes were made including the termination of Amel Bonding wires (yellow/green). Additionally, I assume that the new engine was NOT installed isolated and that there is also a crossover of 12 & 24 DC negative at the engine. A review of your wiring needs to be done. Bill
On Thu, May 20, 2021 at 10:29 AM Bill Kinney <cruisingconsulting@...> wrote: Mark, |
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Bill Kinney
Mark,
This is an odd one... Just by way of additional information, what was the nature of the failure of the main battery bank? You have the original Volvo engine? Bill Kinney sm160, Harmonie Hollywood, FL |
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Ian Park
Mark
I have a switch in the cabinet where the steering rack is located I don’t know if it was original. I left the switch in place, but disconnected the relay that did the remote connection. I would just connect with jump leads if needed. Maybe there is something like this in your setup that has failed? Ian ‘Ocean Hobo’ SN 96 |
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On Thu, May 20, 2021 at 01:02 PM, Mark Garver wrote:
Once I replaced the house bank everything worked fine,Mark, Can you reproduce the fault by attempting to start the engine while the house bank is turned off? As Thomas mentioned, maybe you have a PO mod where something in the start/run circuits for the engine depend upon the 24V house circuit being online. Dean SV Stella A54-154 |
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Thomas Kleman
The house bank and start battery should be completely separate. But you've had not 1 but 2 coincidences. On your boat, the state of the house bank seems to influence the start circuit. Before I did anything (like take the boat somewhere), I would label and test the entire start circuit. Maybe a previous owner made a "modification".
It could also be 2 problems; you may have a problem in the ignition/starter circuit, the start stop solenoid, or something else. Sounds like a long weekend with a multimeter. Good luck. Tom and Kirstin SM2K 422 SV L'ORIENT Tahiti |
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The start battery was a bit over 12 Volt, I didn’t check it at the starter. Once I replaced the house bank everything worked fine, which I fine odd.
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Thomas Kleman
When you checked the voltage at the battery and starter, what was the reading ?
Tom and Kirstin SM2K 422 SV L'ORIENT Tahiti |
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Okay, so recently I had a main bank failure, but what is disturbing is that the engine wouldn’t start. Confusing as I have a dedicated engine start battery, same for the generator. Has anyone experienced this, or have any idea why? Is there a way around this? I can’t imagine this happening in an anchorage, or at sea.
Thanks, Mark Garver SV It’s Good SM #105 |
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