Alex F
Well-Known Member
- Nov 14, 2006
- 9,167
- Boat Info
- 2005 420DB with AB 11 DLX Tender, Raymarine Electronics (2x12" MFDs) with Vesper AIS
- Engines
- Cummins 450Cs, 9KW Onan Generator, 40HP Yamaha for tender.
Great info folks - Here's my situation. Turned port key - nothing - held down "emergency start switch". Engine cranked and fired up and continued to run as long as I had the switch held down - as soon as I let up on the switch, port engine idles down / stalls. Can repeat this multiple times in a row - same results - thoughts?
It sounds like your port batteries are totally dead. Using emergency switch you used your STBD batteries to fire up the port side. Once you let go the switch, you relied on your PORT batteries, which are still dead. You need juice to keep the engine running. As a proof of concept, move the batts from the STBD side to PORT and see if it fires up and stays running. Based on what you described, preliminary conclusion is pointing to a need for new batts on the PORT side.